Visual Core Descriptions

Home , Manganese nodule

Site includes the nodules for the first 19cm. The bioturbation is moderate throughout. The bioturbationis first 19cm. nodules forthe includes the clay and brown in color (7.5YR 5/3, 5/2, 6/3, 10YR 5/3). The manganese nodule layer is present from 63cm to the bottom of the S Core U1404A-1HSectionis separatedintotwo 3withtop partendsin distinct sections.The core is occrence ofalayer nodules.The of manganese the 3 2 1 0 4 Depth CSF-A (m) U1404 400 300 200 100

0 Core length (cm) CC 4 3 2 1 Section core IIa Lithologic unit descriptions image Core lithology Graphic Age Unknown Pliocene-Pleistocene 20 Hole 342-U1404ACore1H,Interval0.0-4.72m(CSF-A) radiation gamma Natural 40 (cps) 60 80 20 -6 0 Reflectance L* 30 2 a* 4 40 4 b* 50 14 6 60 1

10 susceptibility Magnetic (IU)

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones ection 3 and Section 4 Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site the colorturns10GY 5/1(greenishgray) andcontinueswith thiscolorthroughtothecorecatcher. silty-claybottom isalternating 5 tothe 86cm ofSection from themiddle and of theCoreThe bottompart scattered throughout. Core U1404A-2H has two distinct divisions. The top of the core isclay down to Section 5and the color is pale brown (10YRnodules are Mn 6/3).There 14 13 12 11 10 8 7 6 5 9 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIa Lithologic unit descriptions image Core lithology Graphic Age Unknown Hole 342-U1404ACore2H,Interval4.7-14.23m(CSF-A) 8 radiation gamma Natural 18 (cps) 28 38 -10 10 -4 Reflectance L* 0 1 60 a* 10 6 110 b* 20 11 160 30 2

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones clay.SectionAt 7 66cmin

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site The bioturbation is slight. The bioturbation alternates between 10Y 4/1(darkgreenish grey) and5GY 5/1(greenishgrey). The coreincludesnoduleshapedpatches of glaucon Core U1404A-3H isasilty clay down toSection 5where itchangestoclayey silt. The corealternatesclay with silty clay on a 22 21 20 19 18 17 16 15 Depth CSF-A (m) U1404 800 700 600 500 400 300 200 100

0 Core length (cm) CC 6 5 4 3 2 1 Section core IIb IIa Lithologic unit descriptions image Core lithology Graphic Age

Unknown Hole 342-U1404ACore3H,Interval14.2-22.38m(CSF-A) 14 radiation gamma Natural (cps) 24 34 26 -6 -4 Reflectance L* -4 36 1 a* -2 46 b* -0 6 56 3

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones cmscale.The color

Radiolarian zones ite inSections 1,2and6.

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

0 Core length (cm) CC 6 5 4 3 2 1 Section core IIb IIa Lithologic unit descriptions image Core lithology Graphic Age

Unknown Hole 342-U1404ACore3H,Interval14.2-22.38m(CSF-A) 14 radiation gamma Natural (cps) 24 34 26 -6 -4 Reflectance L* -4 36 1 a* -2 46 b* -0 6 56 4

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones cmscale.The color

Radiolarian zones ite inSections 1,2and6.

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 5H, Interval 33.2-40.61 m (CSF-A)

Core U1404A-5H is a silty clay with abundant diatoms and rare radiolarians. The color is dominately 5GY 4/1 (dark greenish gray) to 10GY 5/1 (greenish gray). The texture is mottled with moderate burrowing.

Reflectance L* a* b* Natural 28 38 48 58 gamma Magnetic radiation susceptibility -4 -1 2 4 7 Bioturbation (cps) (IU) intensity Core Graphic

10 12 14 16 -8 -3 2 7 0 1 10 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

34 1 100

35 200 2

36 300

IIb 37 3

400 Unknown

38 500 4

39 600

5 40 700

CC RN02

5 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 6H, Interval 42.7-49.38 m (CSF-A)

Core U1404A-6H is a silty clay with abundant diatoms and fewer radiolarians. The color is 10GY 4/1 (dark greenish gray) to 10GY 5/1 (greenish gray). The core is moderately burrowed and mottled. There is some glauconite at 78cm in Section 3.

Reflectance L* a* b* Natural 0 100 200 gamma Magnetic radiation susceptibility -6 -1 4 Bioturbation (cps) (IU) intensity Core Graphic

11 13 15 -6 4 14 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

1 100

44 Unknown

200

45 2

300

46 IIb

3 400

47 Miocene

500 4 48

600 5 49 CC RN02

6 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 7H, Interval 52.2-59.13 m (CSF-A)

Core U1404A-7H is composed of greenish gray (5GY 5/1) to dark greenish gray (5GY 4/1 and 10Y 4/1) biosiliceous (diatoms, radiolarians and sponge spicules) clay with nannofossils. Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. A large, 20 cm Mn-nodule is present in Section 1. Intervals in core-scanned images that have a more hackly appearance following core scraping are typically more silt-rich. It should be noted that calcareous nannofossils are not observed in the core catcher but are common in smear slides taken from the split cores.

Reflectance L* a* b* Natural 0 100 200 gamma Magnetic radiation susceptibility -6 -1 4 9 14 Bioturbation (cps) (IU) intensity Core Graphic

8 28 48 68 -8 2 12 22 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

53 1 100

54 200 2

55 300

IIb Miocene 56 3 400

57 500 4

58 600

59 CC RN02

7 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 8H, Interval 61.7-71.3 m (CSF-A)

Core U1404A-8H is composed of greenish gray (5GY 5/1) to dark greenish gray (5GY 4/1 and 10Y 4/1) biosiliceous (diatoms, radiolarians, silicoflagellates and sponge spicules) clay with nannofossils. Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. A large, pulverized, 20 cm Mn-nodule is present in Section 1. Intervals in core-scanned images that have a more hackly appearance following core scraping are typically more silt-rich. We recognize the possibility that Mn-nodules may be fall-in from previous Cores. They contain light brown silty clay with no biogenic material; this is consistent with litholigies from 1404A-1H and 2H of Pleistocene age.

Reflectance L* a* b* Natural 0 100 200 300 gamma Magnetic radiation susceptibility -6 -3 -1 2 Bioturbation (cps) (IU) intensity Core Graphic

8 28 48 68 88 -2 8 18 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

1 100

200

64 2

300

3 400

IIb

500 Miocene

67 4

600

5 700

800 6 70

900 7 71 CC RN02

8 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 9H, Interval 71.2-81.08 m (CSF-A)

Core U1404A-9H is composed of greenish gray (5GY 5/1) to dark greenish gray (5GY 4/1 and 10Y 4/1) biosiliceous (diatoms, radiolarians, silicoflagellates and sponge spicules) clay with nannofossils. Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. Intervals in core-scanned images that have a more hackly appearance following core scraping are typically more silt-rich. Another large, pulverized, 10 cm Mn-nodule is present in Section 1. They contain light brown silty clay with no biogenic material; this is consistent with litholigies from 1404A-1H and 2H of Pleistocene age.

Reflectance L* a* b* Natural 20 30 40 50 60 gamma Magnetic radiation susceptibility -5 -3 0 3 5 Bioturbation (cps) (IU) intensity Core Graphic

10 35 60 85 110 -2 8 0 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

72 1 100

73 200 2

74 300

75 3 400

76 500 IIb 4 Miocene

77 600

78 5 700

79 800 6

80 900

CC 81 RN02

9 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 10H, Interval 80.7-90.59 m (CSF-A)

Core U1404A-10H is composed of greenish gray (5GY 5/1) to dark greenish gray (5GY 4/1 and 10Y 4/1) biosiliceous (diatoms, radiolarians, silicoflagellates and sponge spicules) clay with nannofossils. Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. Intervals in core-scanned images that have a more hackly appearance following core scraping are typically more silt-rich. Small, mm-sized white blebs are present throughout U1403A-10H that are composed of highly angular silt size quartz with occasional micas, feldspars and an unknown mineral that presents as high relief greenish grains similar to tourmaline. Quartz grains are have uniform extinction and do not appear to be derived from metamorphic terranes.

Reflectance L* a* b* Natural 26 36 46 gamma Magnetic radiation susceptibility -3 -1 1 Bioturbation (cps) (IU) intensity Core Graphic

0 50 100 -4 1 6 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

1 100

200

83 2

300

3 400

500 IIb Miocene 86 4

600

5 700

800

89 6

900

90 7

CC RN01

10 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 11H, Interval 90.2-96.26 m (CSF-A)

Core U1404A-11H is composed of greenish gray (5GY 5/1) to dark greenish gray (5GY 4/1 and 10Y 4/1) biosiliceous (diatoms, radiolarians, silicoflagellates and sponge spicules) clay with nannofossils. Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide or sulfide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. Small, mm-sized white blebs are rare but present in U1403A-11H; they are composed of highly angular silt size quartz with occasional micas, feldspars Quartz grains are have uniform extinction and do not appear to be derived from metamorphic terranes. Mn-nodule is present in Section 1, again.

Reflectance L* a* b* Natural 32 52 gamma Magnetic radiation susceptibility -4 -2 -0 2 Bioturbation (cps) (IU) intensity Core Graphic

8 28 48 -4 -2 1 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

1 91 100

92 200 2

93 300 IIb Miocene

3 94 400

95 4 500

96 CC 600 RN01

11 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 12H, Interval 96.2-106.08 m (CSF-A)

Core U1404A-12H is composed of 10Y 4/1 (dark greenish grey), 5GY 4/1 (dark greenish grey), to 5GY 5/1 (greenish grey) clay with biosilica (diatoms, radiolarians). Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide or sulfide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. Some sand sized quartz.

Reflectance L* a* b* Natural 30 80 130 gamma Magnetic radiation susceptibility -4 1 6 Bioturbation (cps) (IU) intensity Core Graphic

11 16 21 -24 -14 -4 6 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

1 97 100

98 200 2

99 300

3 100 400

101 500 IIb 4 Miocene

102 600

5 103 700

104 800 6

105 900 7

CC 106 RN01

12 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 13H, Interval 105.7-115.1 m (CSF-A)

Core U1404A-13H is composed of 10GY 5/1 (greenish grey), 5GY 4/1 (dark greenish grey), to 10Y 4/1 (dark greenish grey) clay with biosilica (diatoms, radiolarians). Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide or sulfide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. Layering clear in Sections 5 and 6.

Reflectance L* a* b* Natural 24 34 44 54 gamma Magnetic radiation susceptibility -1 1 Bioturbation (cps) (IU) intensity Core Graphic

6 11 16 21 -4 -2 1 4 6 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

106 1

100

107 2

200

108

3 300

109

400

110 4

IIb

500 Miocene

111

5 600

112

700

113 6

800

114 7

900 CC 115 RN01

13 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 14H, Interval 115.2-124.89 m (CSF-A)

Core U1404A-14H is composed of 5GY 4/1 (dark greenish grey), N4 (dark grey), to 10Y 5/1 (greenish grey) clay with biosilica (diatoms, radiolarians). Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide or sulfide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. Nannofossils concentrated in the browner parts of the core.

Reflectance L* a* b* Natural 28 38 48 gamma Magnetic radiation susceptibility -3 -2 -1 0 1 Bioturbation (cps) (IU) intensity Core Graphic

13 15 18 20 -5 -3 0 3 5 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

116 1 100

117 200 2

118 300

119 3 400

120 IIb 500 Miocene 4

121 600

122 5 700

123 800 6

124 900 7

CC RN01

14 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 15H, Interval 124.7-134.73 m (CSF-A)

Core U1404A-15H is composed of 5GY 4/1 (dark greenish grey), 10Y 4/1 (dark greenish grey), to 5GY 5/1 (greenish grey) clay with biosilica (diatoms, radiolarians). Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide or sulfide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. Unique layering at 98-99cm, contains angular quartz and glauconite.

Reflectance L* a* b* Natural 22 32 42 52 gamma Magnetic radiation susceptibility -4 -2 0 Bioturbation (cps) (IU) intensity Core Graphic

16 18 20 22 -4 -2 0 2 4 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

125

100

126

200 2 127

300

128

400

129

500 IIb 4 130 Miocene

600

131

700

132

800 6 133

900

134 7

CC 1000 RP22a

15 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 16H, Interval 134.2-144.02 m (CSF-A)

Core U1404A-16H is composed of 10Y 4/1 (dark greenish grey), N4 (dark grey), to 10Y 5/1 (greenish grey) clay with biosilica (diatoms, radiolarians). Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide or sulfide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations. Fracture was noted in Section 5 between 53 and 77cm.

Reflectance L* a* b* Natural 26 36 46 56 gamma Magnetic radiation susceptibility -2 -1 -0 1 2 Bioturbation (cps) (IU) intensity Core Graphic

16 36 56 76 0 5 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

135 1 100

136 200 2

137 300

138 3 400

139 IIb 500 Miocene 4

140 600

141 5 700

142 800 6

143 900 7

CC 144 RP22a

16 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 17H, Interval 143.7-153.74 m (CSF-A)

Core U1404A-17H is composed of 5GY 4/1 (dark greenish grey), biosiliceous (diatoms, radiolarians) clay with some nannofossils. Subtle color variations result from variable abundance of bioturbation disrupted Mn-oxide or sulfide layers. Layering ranges from centimeter-scale (~5cm) to decimeter scale color variations.

Reflectance L* a* b* Natural 26 36 46 56 gamma Magnetic radiation susceptibility -4 1 6 11 Bioturbation (cps) (IU) intensity Core Graphic

19 21 23 -9 -4 1 6 11 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

144

1 100

145

200

146 2

300

147 Miocene

400

148

500 IIb 4 149

600

150

700

151

800 6

152 Oligocene

900

153 7

CC 1000 RP21a

17 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 18H, Interval 153.2-163.22 m (CSF-A)

Core U1404A-18H is composed of 5GY 4/1 (dark greenish grey), biosiliceous (diatoms, radiolarians) clay with some nannofossils within the greenish grey (10 Y 5/1) intervals. Subtle color variations result from variable abundance of bioturbation.

Reflectance L* a* b* Natural 28 38 48 58 gamma Magnetic radiation susceptibility -2 0 2 Bioturbation (cps) (IU) intensity Core Graphic

18 21 23 26 28 -9 -4 1 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

154 1 100

155 200 2

156 300

157 3 400

158 500 IIb

4 Oligocene

159 600

160 5 700

161 800 6

162 900 7

163 CC 1000 RP21a

18 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 19H, Interval 162.7-172.79 m (CSF-A)

Core U1404A-19H is composed of 5GY 4/1 (dark greenish grey) clay with some nannofossils within the greenish grey (10 Y 5/1) intervals. Subtle color variations result from variable abundance of bioturbation.

Reflectance L* a* b* Natural 30 40 50 gamma Magnetic radiation susceptibility -2 -1 -0 1 Bioturbation (cps) (IU) intensity Core Graphic

19 24 29 -4 -2 0 2 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

163

1 100

164

200

165 2

300

166

3 400

167 RP21a

500 IIb 4 168 Oligocene

600

169

5 700

170

800 6 171

900 7 172

CC 1000 RP21a

19 Site Core U1404A-20H iscomposedof5GY 4/1(darkgreenishgrey) siltyclay. Subtle colorvariations resultfromvariable abundance 181 180 179 178 177 176 175 174 173 182 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore20H,Interval172.2-182.01m(CSF-A) Oligocene 21 radiation gamma Natural (cps) 26 31 20 -3 Reflectance L* -2 30 2 a* 40 1 7 b* 50 4 12 20

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones of bioturbation. Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site Core U1404A-21H iscomposedof5GY 4/1(darkgreenishgrey) siltyclay. Subtle colorvariations resultfromvariable abundance 191 190 189 188 187 186 185 184 183 182 Depth CSF-A (m) U1404 1000 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore21H,Interval181.7-191.73m(CSF-A) Oligocene 24 radiation gamma Natural 34 (cps) 44 54 32 -2 -5 Reflectance L* -1 -3 42 a* -0 -1 52 b* 1 1 2 21

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones of bioturbation. Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site Core U1404A-22H iscomposedof5GY 4/1(darkgreenishgrey) siltyclay. Subtle colorvariations resultfromvariable abundance 194 193 192 Depth CSF-A (m) U1404 300 200 100

0 Core length (cm) CC 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore22H,Interval191.2-194.98m(CSF-A) Oligocene 14 radiation gamma Natural (cps) 24 34 -11 32 -3 Reflectance L* 2 42 -6 a* 7 52 b* -1 12 62 22

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones of bioturbation. Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site silty clay to nannofossil ooze at Section 4, interval 120 to 125 cm. Smear slidesshowa transitionfrom Core U1404A-23 shows several intervals of color change;sharp color transitionsare seen throughoutsections4 and 5. 204 203 202 201 200 199 198 197 196 195 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb III Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore23H,Interval194.9-204.37m(CSF-A) Oligocene 12 radiation gamma Natural (cps) 32 52 30 -6 Reflectance L* -4 40 -1 a* -2 50 4 b* 9 60 0 14 70 2 23

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site burrowing.to 62cm10Y7/2 (palegreen). light horizonfrom36 Clear clayeyare moreclayand slightly2 and3 ooze. Sectionswhereas rich morenannofoss nannofossil mottled, 5, 6are Sections 4, the Eocene/OligoceneislargelyTheCore U1404A-24Hbottomhalfofcore transition. 5Yhas the 6/2 (lightolive gray) 2.5Y brownish to (light 6/2 gray) 212 211 210 209 208 207 206 205 Depth CSF-A (m) U1404 800 700 600 500 400 300 200 100

0 Core length (cm) 6 5 4 3 2 1 Section core III Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore24H,Interval204.3-212.81m(CSF-A) Eocene Oligocene radiation gamma Natural (cps) 34 44 -10 12 -1 Reflectance L* 1 32 0 a* 3 10 52 b* 5 20 72 24

10 susceptibility Magnetic (IU)

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones il rich withil rich moderate Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site Core U1404A-25His largely2.5Y (light brownish gray) 6/2 withmottles 10GYgrey) nannofossil clay.( greenish Bu mottles, 6/4 rrowing is moderate. 220 219 218 217 216 215 214 213 Depth CSF-A (m) U1404 700 600 500 400 300 200 100

0 Core length (cm) CC 5 4 3 2 1 Section core III Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore25H,Interval212.8-220.53m(CSF-A) Eocene 14 radiation gamma Natural 24 (cps) 34 44 30 -2 -1 Reflectance L* 40 4 0 a* 9 50 2 b* 14 60 4 25

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site 5 and 6 the nannofossils largelyis largely5 and6the disappearandthecore clay. This layer is 5BG 5/1 (greenish gray), with a more silty layer in the middle. Mottles 5GY 6/1 (greenish grey) are common throug Core U1404A-26His largely 2.5Y5/2 (grayish brown) clayeyimpac the probableChesapeakeSection 1contains nannofossil ooze. 228 227 226 225 224 223 222 221 Depth CSF-A (m) U1404 800 700 600 500 400 300 200 100

0 Core length (cm) CC 6 5 4 3 2 1 Section core IV III Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore26H,Interval220.5-228.71m(CSF-A) Eocene 30 radiation gamma Natural (cps) 80 130 -4 -6 Reflectance L* -2 -1 50 a* -0 4 b* 2 60 9 4 26

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones hout the core. In Sections

Radiolarian zones 124 cm. t layerfrom 79to

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site first 28 cm of Section 1 is fragmentedbyfirst 28cmofSection 1 drillingdisturbance. followingDarker greenlayers sections). chlorite richwith areglauconite.Burrowing some to heavy ismoderate asevidencedby Core U1404A-27H10Y isa 5/1(greenishgray) clay withoccasional darkergreenhorizontallayersthan 1cmthink(lessdis less 236 235 234 233 232 231 230 229 Depth CSF-A (m) U1404 700 600 500 400 300 200 100

0 Core length (cm) CC 5 4 3 2 1 Section core IV Lithologic unit descriptions image Core lithology Graphic Age Eocene Hole 342-U1404ACore27H,Interval228.6-236.5m(CSF-A) 20 radiation gamma Natural 30 (cps) 40 38 -3 -3 Reflectance L* 0 -2 48 a* 3 -1 b* 5 58 0 27

0 susceptibility Magnetic

1 (IU)

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones rare dark mottles. The raredarkmottles. tinct and dark thanin tinct and

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site first 19 cm of Section 1. burrowing-related mottlesscatteredthroughout.A slurry ofrelatively unconsolidated sediments(resultingfromcoringdisturbance)characterizesthe approximately every0.5-1 meters.Burrowing moderate toheavy. is Darker greenlayers are chloriterichwithsome glauconite.T Core U1404A-28His a5GY (greenish gray) 5/1 clay withthink. Darkdarker greenhorizontallayers greenhorizont less than1cm 243 242 241 240 239 238 237 244 Depth CSF-A (m) U1404 700 600 500 400 300 200 100

0 Core length (cm) CC 5 4 3 2 1 Section core IV Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore28H,Interval236.5-244.13m(CSF-A) Eocene 22 radiation 27 gamma Natural (cps) 32 37 42 22 -2 -3 Reflectance L* 32 -1 -1 a* 42 1 -0 52 b* 3 62 1 5 28

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones here are darker, al layers occur Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 29H, Interval 244.1-253.08 m (CSF-A)

Core U1404A-29H is a 5GY 5/1 (greenish gray) radiolarian clay with darker green horizontal layers less than 1 cm think. Section 4 and the top of Section 5 (0-35 cm) are tanner by comparison with the rest of the core. Burrowing is moderate to high throughout. Darker green layers are chlorite rich. There are darker mottles scattered throughout. Vertical banding in Sections 6 and CC evidence flow-in (a drilling disturbance).

Reflectance L* a* b* Natural 30 40 50 60 gamma Magnetic radiation susceptibility -3 2 7 Bioturbation (cps) (IU) intensity Core Graphic

120 220 -9 -4 1 6 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

RP16RP16 1 245 100

246 200 2

247 300

3 248 400

IV Eocene 249 500 4

250 600

5 251 700

252 800 6

CC 253 RP15

29 Site 102-103 cm. a, roughly,half-meter scale.Two clasts andintervalsin Sectionprobable, iceraftedsilty 1,93-97 sand arepresent,one of section. Darker green layers are chloriterich. Moderate burrowing results in mottled appearance throughout, with variation in Core U1404A-30His a5GYgray) 5/1 (greenish clay presen and are withlayers~1cm inthickness darker greenhorizontal thatare 259 258 257 256 255 254 253 Depth CSF-A (m) U1404 600 500 400 300 200 100

0 Core length (cm) CC 5 4 3 2 1 Section core IV Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore30H,Interval253.0-259.75m(CSF-A) Eocene 24 radiation 29 gamma Natural (cps) 34 39 44 -10 24 -6 Reflectance L* 34 a* 4 0 44 b* 14 54 10 30

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones cm and one in Section 4, cm andonein

PF zones the abundanceof burrows on t approximately1 per Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site (nannofossil siltyclay)with along averyin color. slight lightening section. Moderateburrowing resutls inmottledappearance throughou Core U1404A-31His a5GYgray) 5/1 (greenish clay presen and are withlayers~1cm inthickness darker greenhorizontal thatare 265 264 263 262 261 260 Depth CSF-A (m) U1404 500 400 300 200 100

0 Core length (cm) CC 4 3 2 1 Section core IV Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore31H,Interval259.7-265.31m(CSF-A) Eocene radiation gamma Natural (cps) 39 44 -11 36 -3 Reflectance L* t. The dominantlithology changes inSections 4 (silty clay -6 -1 46 a* -1 1 b* 56 4 3 31

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones with nannofossils) and CC t approximately1 per Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 32H, Interval 265.3-271.01 m (CSF-A)

Core U1404A-32H is a 5GY 5/1 (greenish gray) nannofossil silty clay. Moderate burrowing resutls in mottled appearance (dark mottles) throughout. The entire core is disturbed by drilling (core liner shattered with additional disturbance on removal from the core barrel). Decimeter scale color variation (from the dominant color, 5GY 5/1, to darker blue grey) occur throughout Sections 2, 4, and 5 and may in part reflect the extensive drilling disturbance. Sections 1, 3, and 6 are notably homogenous by comparison.

Reflectance L* a* b* Natural 30 40 50 60 gamma Magnetic radiation susceptibility -3 2 7 Bioturbation (cps) (IU) intensity Core Graphic

12 32 52 72 -12 -7 -2 3 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0 1

266

100 2

267

200

268 IV 300 Eocene

269 4 400

270 5 500

CC RP15

271

32 Site dark mottling and staining follow rare to occasional burrows throughout the core. tanner horizons(Section 5), acentimeterscale dark greenhorizon(Section 3), andaninterval with partially developed laminations (Section 6).Sparse 5/1) nannofossil claystone. Inadditionto color variation amongand within coresfrom darker tolightergreenish grey, therea Core U1404A-33Xgreyis predominantlya greenish (5GY6//1) dar to 279 278 277 276 275 274 273 272 271 Depth CSF-A (m) U1404 800 700 600 500 400 300 200 100

0 Core length (cm) CC 6 5 4 3 2 1 Section core IV Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore33X,Interval271.0-279.58m(CSF-A) Eocene 24 radiation gamma Natural 29 (cps) 34 39 20 -5 -6 Reflectance k greenish greyk greenish (5GY4/1) claystonewith moderateburrowing.S L* 30 0 -1 a* 40 5 b* 4 50 10 33

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones re notable decimeter scale

Radiolarian zones ection 1 is a lighter (5GY is a ection 1

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site occur in Section 1 and 7; occasional darker mottling from burrowing occurs throughout. Core U1404-34X isagreenishgray (5GY 5/1)claystone thatis 289 288 287 286 285 284 283 282 281 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) 7 6 5 4 3 2 1 Section core IV Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404ACore34X,Interval280.7-289.85m(CSF-A) Eocene 28 radiation gamma 31 Natural (cps) 33 36 heavily biscuitedandmildly bioturbated.Occasional horizons(~1cmthickness) darkergreen 24 -5 Reflectance L* 34 -3 a* 1 44 b* -1 6 54 34

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 35X, Interval 289.4-294.0 m (CSF-A)

Core U1404-35X is a radiolarian claystone with slight burrowing (as indicated by rare dark burrows). The entire core is heavily biscuited and fractured. Color varies gradationally between a lighter greenish gray (5GY 5/1) and a darker greenish gray (10Y 5/1). Occasional emerald green horizons in Section 3 and the CC of likely diagenetic origin.

Reflectance L* a* b* Natural 100 200 gamma Magnetic radiation susceptibility -11 -6 -1 Bioturbation (cps) (IU) intensity Core Graphic

20 22 24 26 -10 0 10 1 10 100 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

290 1 100

291

200 2 IV Eocene 292

300

293 3

400

CC 294 RP14

35 Site U1404 core descriptions Visual core descriptions

Hole 342-U1404A Core 36X, Interval 299.1-299.82 m (CSF-A)

Core U1404A-36X is a greenish gray (5GY 5/1) radiolarian claystone. The core is heavily disturbed by drilling (biscuiting and fracturing) and contains large igneous or metamorphic dropstones (clear fall-in) from 0-12 cm. The entire core is contained in a single section, marking the end of the drilling in Hole U1404A. A fracture is indicated in a single large biscuit piece (13-23 cm) by the interruption of a green layer & surrounding burrows.

Reflectance L* a* b* Natural 20 30 40 50 gamma Magnetic radiation susceptibility -4 -2 0 2 4 Bioturbation (cps) (IU) intensity Core Graphic

11 16 21 -3 -1 1 3 5 1 10 100 1000 10000 image lithology Age 1 2 3 4 5 6 Nannofossil zones PF zones Radiolarian zones Disturbance type Disturbance intensity Sedimentary structures Lithological accessories Shipboard samples Depth CSF-A (m) Core length (cm) Section Lithologic unit 0

1 IV Eocene RP14

36 Site specific layer of foraminiferal sand within the interval from 5 to 7 cm at Section 1. cm at sand withinspecific layerto 7 the intervalof foraminiferal from 5 also a noted We Core U1404B-1H containsavery palebrown (10YRooze atSection 1,andnannofossiloozeatSecti 8/2)foraminiferalnannofossil

2 1 0 Depth CSF-A (m) U1404 200 100

0 Core length (cm) CC 2 1 Section core

I Lithologic unit descriptions image Core lithology Graphic Age Pliocene-Pleistocene 17 Hole 342-U1404BCore1H,Interval0.0-2.48m(CSF-A) radiation gamma Natural 22 (cps) 27 32 22 2 Reflectance L* 32 a* 4 4 42 b* 52 14 6 62 37

10 susceptibility Magnetic (IU) 100

1000 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones

Radiolarian zones on 2.

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site manganese nodules. Burrowingmanganese nodules. to moderate. isslight Core U1404B-2H7.5YRis a gray)dark layers. 6/2(pinkish concentrated in claythroughout thatis withmicro Mn There is silt. 12 11 10 6 5 4 3 9 8 7 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIa Lithologic unit descriptions image Core lithology Graphic Age Unknown 19 Hole 342-U1404BCore2H,Interval2.4-12.3m(CSF-A) radiation gamma Natural 24 (cps) 29 34 28 -2 1 Reflectance L* 38 3 a* 8 48 5 b* 58 18 7 38

10 susceptibility Magnetic (IU)

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones also scattered There are

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site chlorite. With anotablyone at140to145cm.Theto 10GY bottom3Sections large 'lighten' chlorite. With 5/1(greenishgray). first 4Sections. There are'fresh'MnnodulesinthetopSection oftheCore andgreen'ghosts'ofMnnoduleswhich appearto Core U1404B-3HLayeringis clayalternate betweenwithmicro nodules. 5GY colors marcoand Mngrey)10Y 5/1 (greenish and 4/2 21 20 19 18 17 16 15 14 13 12 Depth CSF-A (m) U1404 1000 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIa Lithologic unit descriptions image Core lithology Graphic Age

Unknown Hole 342-U1404BCore3H,Interval11.9-21.96m(CSF-A) 12 radiation gamma Natural 32 (cps) 52 72 26 -4 Reflectance L* 36 -1 a* 1 46 b* 56 4 6 39

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones concentrateglauconiteand

Radiolarian zones (grayishin the green)

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site greenish gray).Section The was top methane hydrates. waterythe presenceof speculating asto with are excess We gas. Core U1404B-4Hclay is with diatoms5GY5/1 (greenishgray). layers, Darkerdarken theCore abundantradiolariansanddiatoms 29 28 27 26 25 24 23 22 Depth CSF-A (m) U1404 800 700 600 500 400 300 200 100

0 Core length (cm) CC 6 5 4 3 2 1 Section core IIb IIa Lithologic unit descriptions image Core lithology Graphic Age

Unknown Hole 342-U1404BCore4H,Interval21.4-29.81m(CSF-A) 13 radiation 15 gamma Natural (cps) 17 19 21 30 -4 -2 Reflectance L* -2 3 40 a* 0 8 50 b* 2 13 4 40

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones

Radiolarian zones periodically10Y 4/1(dark

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site radiolarians, could be considered a biosiliceous ooze. Core U1404B-5Hclayis a with5GY diatoms is (dark greenish 4/1 37 36 35 34 33 32 31 30 29 28 Depth CSF-A (m) U1404 1000 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

Unknown Hole 342-U1404BCore5H,Interval27.4-37.44m(CSF-A) 11 radiation gamma Natural (cps) 13 15 gray). The sediment is mottled withgray).burrowing.is mottled The moderate sediment Darker 28 -5 -4 Reflectance L* -2 -3 38 a* 1 -1 48 b* 4 1 6 41

1 susceptibility Magnetic (IU)

10 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones

Radiolarian zones layersinclude

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site macroscopic Pyrite. ooze withis abiosiliceous Core U1404B-6H clay is 5GY(dark 4/1 46 45 44 43 42 41 40 39 38 37 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

Unknown Hole 342-U1404BCore6H,Interval36.9-46.58m(CSF-A) 8 radiation gamma Natural (cps) 13 18 greenish gray).greenish sediment islayered, Themottled with moderat 22 -2 -3 Reflectance L* -0 2 32 a* 2 7 42 b* 12 4 52 42

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones e burrowing. Contains Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site macroscopic Pyrite. ooze withis abiosiliceous Core U1404B-6H clay is 5GY(dark 4/1 46 45 44 43 42 41 40 39 38 37 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones e burrowing. Contains Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site mottled with moderateburrowing.of Section The 4ispyrite bottom an appearanceatSection rich.Nannofossils 6. starttomake withbiosiliceous ooze clayis a Core U1404B-8Hgreenish gray)is 5GY with4/1 (dark gray)10Y (dark greenish darker interv 4/1 65 64 63 62 61 60 59 58 57 56 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

Miocene Hole 342-U1404BCore8H,Interval55.9-65.81m(CSF-A) 13 radiation gamma 14 Natural (cps) 15 16 20 -2 -4 Reflectance L* -1 -1 30 a* 2 -0 40 b* 4 1 50 7 44

0 susceptibility Magnetic (IU) 1

10 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones als. The sediment is The sediment als.

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site sediment is mottled withthe Coreburrowing.third Sectisediment is downthe topof moderate 73cm inthe The'suck in'in to Core suffered withbiosiliceous nannofossilooze clayis a Core U1404B-9H5G is 75 74 73 72 71 70 69 68 67 66 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

Miocene Hole 342-U1404BCore9H,Interval65.4-75.07m(CSF-A) radiation 11 gamma Natural (cps) 13 16 Y(dark greenishgray) 4/1with greenish darker10Y4/1 (dark 32 -3 -9 Reflectance L* -4 42 a* 2 1 52 b* 7 6 45

1 susceptibility Magnetic (IU)

10 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones on. gray) intervals. The Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site be largely theresultof disseminated sulfidesorMn-oxides. slight toheavyis typically but moderate;discreteburrowsfollowed arePlanolites by Chondrites. Downcore colorvariation is is agreenishgrayCore U1404B-10H(5GY dark greenishgray 5/1)to biosiliceous oozewith (5GY4/1) tonannofossil clay. Biotu 84 83 82 81 80 79 78 77 76 75 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

Miocene Hole 342-U1404BCore10H,Interval74.9-84.85m(CSF-A) 13 radiation gamma Natural 18 (cps) 23 20 -3 Reflectance L* -2 30 2 a* 1 40 7 b* 12 4 50 46

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones gradational andappearsto rbation is ranges from rbation is Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site a collapsed core (57-87 cm) disturbs Section 7. disseminated sulfides or Mn-oxides, which occasional occurin more concentratelayers. A mousselikedrilling in disturbance occurs Section 1(0-5 cm) and browner (10Y 3/1)todarker(5GYthan thesurroundingsediments.Down-core 3/1) colorvariationto belargely isgradationalandappears theresultof to heavyranges frommoderate butistypically A mo moderate. clay. Background colorvarieson 30-50cmscales,with (bluercolor(10GY abluerbackgroundcolor 5/1)appearinginSections Core U1404B-11Hpredominately is agreenishgray(5GY graydark greenish 5/1)to (5GYooze with 4/1)nannofossildiatom radiola 93 92 91 90 89 88 87 86 85 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

Miocene Hole 342-U1404BCore11H,Interval84.4-93.91m(CSF-A) 7 radiation gamma Natural (cps) 12 17 ttled appearance arises from discreteburrowsttled appearancearises (Planolites andCho 24 -3 -7 Reflectance L* 34 -2 -1 a* 44 3 b* 1 54 8 47

0 susceptibility Magnetic (IU) 1

10 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones 6 and 7. Bioturbation6 andis ndrites), that varyndrites), from

Radiolarian zones diatom oozewithrians to

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site the early intervalof Section1,with likelyfr fall-in Coring disturbancedisrupts patch. ?chlorite contains silt-sizedquartzas whiteCoring disturbancedisruptsthe flecks(74-84cm)with?chlorite patch. anassociated respectively)3, sol intensityspeckling fromChondritesburrows. ischaracterizedby andfinelightThe reducedbioturbation browner(10Ya brownerThe first the Core,including (5G 5/1)hue. 4/1)interval (10Y(spannning approximatelin 4/1) andbluer later Sections ofCore12H.Down-core color variationMn-oxides. due tomottlingappearsresult of disseminatedsulfidesor brownerto moderatebutistypicallyslight (10Y 4/1)mottling.Bioturbation israngesfrom moderate(typically Planolitesburr predominatelya greenishgrayCore U1404B-12Hismoderately (5GY bioturbated, 5/1)clay with biosilica(diatoms,radipolarians) 103 102 101 100 99 98 97 96 95 94 Depth CSF-A (m) U1404 500 400 300 200 100 900 800 700 600

0 Core length (cm) CC 6 5 4 3 2 1 7 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age om 0-30 cm, alarge(6cmindiameter)Mn-nodulefrom24-30andcrac Miocene Hole 342-U1404BCore12H,Interval93.9-103.76m(CSF-A) 9 radiation gamma Natural 14 (cps) 19 24 26 -4 -6 Reflectance L* 36 a* -1 6 46 b* 16 4 56 48

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones ows); mottling appears less distinct in the ows);appears lessdistinct mottling ked sedimentfrom48-50cm. PF zones blue (5G5/1)interval (80-114cm) e Two secondary intervalscolor are found y the first and last 50 cm of Sections 2 and and last50cmofSections2 first y the , with3/1) and , darker(upto5GY Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site browner (10Y 4/1),andbluerburrows andlayers (5GY 4/1). Bi bluer greenishgrey (5GY 4/1).Background coloralternatesondecimetertohalf-meterscales,andismottledthroughoutby dar Core U1404B-13H ismoderately bioturbatedcl 112 111 110 109 108 107 106 105 104 113 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic ay with biosilica(diatoms,radiolarians)withtwo alternatingcolors:abrowner gr Age Hole 342-U1404BCore13H,Interval103.4-113.03m(CSF-A) Miocene 14 radiation gamma Natural 16 (cps) 18 oturbation ismoderateanddarkermottlingappearstoresultofdisseminatedsulfides. 20 30 -3 Reflectance L* 0 -2 a* 40 3 b* 5 0 50 49

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones eenish grey (10Y 4/1)anda ker (upto5GY 3/1),

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site (5GY 4/1)intervalsidentified asclay are withcm ofSection 1. disturbance (fall-in)disruptsthefirst2 diatoms.Coring disseminated sulfidesorMn-oxides and?chlorites.Decimeter tohalfmeterintervalsbrowner of (10Y 4/1)andbluer(5GY 4/1)s to 5GY4/1), green(5G 4/1)anddarker(up 3/1)mottlingduetom Core U1404B-14H isamoderatelybioturbated, 122 121 120 119 118 117 116 115 114 113 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic predominately lightgreenishgray (10GY clay 5/1) with(diatoms, radiolarians),with biosilica brown (10Y Age Hole 342-U1404BCore14H,Interval112.9-122.46m(CSF-A) Miocene 14 radiation gamma Natural 16 (cps) 18 20 oderate bioturbation.Down-core colorvariationto mottli due -4 -4 Reflectance L* -2 1 40 a* 1 6 b* 4 50 11 6 50

1 susceptibility Magnetic (IU)

10 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones ng appearstoresultof ediments occur.The bluer

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site 3 through CC. disrupt wascm. Coringin Section disturbance(fall-in) 6,59 found the resultofvariable abundance of disseminatedsulfides.A prominent blacksulfidelayer is presentinSection 5,40-42cmand a blacksulfide nodule (diatoms, radiolarians);browner (10Y 4/1)andbluer(5GY 4/1)clay intervals areminorlithologies.Down-core colorvariation Core U1404B-15H isadarkgreenishgray (10GY 4/1)togreenish 131 130 129 128 127 126 125 124 123 132 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Miocene Hole 342-U1404BCore15H,Interval122.4-132.1m(CSF-A) 15 radiation gamma Natural 17 (cps) 19 21 s the first 5 cm of Section 1 and mild fracturing is foundi 1 andmildfracturing 5 cmofSection s thefirst gray (10GY 5/1),moderately bioturbated (Chondrites predominates 30 -3 -3 Reflectance L* -2 -1 40 a* -1 1 b* 50 3 0 51

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones n the top 2 cm of Sections the top2cm n

PF zones at thedecimeterscaleis

Radiolarian zones ) clay with biosilica

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site fall-in. The remaining Sections are slightlyremaining Sectionsfall-in. Theprominentveryfractured. A graydark greenish (10Y clay 3/1) in layeris present result ofvariable abundance ofdisseminatedsulfides.The condition of thisCore isvery poor; Sections 1-3arecompletely fra (diatoms, radiolarians);very darkgreenishgray (10Y 3/1)clay intervalsminor lithologies.Down-core are colorvariation decimeterscaleisthe atthe Core U1404B-16H isadarkgreenishgray (10GY 4/1)togreenish 140 139 138 137 136 135 134 133 132 Depth CSF-A (m) U1404 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore16H,Interval131.9-140.29m(CSF-A) Miocene 0 radiation gamma Natural 0 (cps) 1 1 1 gray (10GY 5/1),moderately bioturbated (Chondrites predominates -14 -3 0 Reflectance L* -1 50 -9 a* 100 1 -4 b* 150 3 1 5 52 susceptibility Magnetic (IU)

10 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones Section 5 from 37 to 74 cm.

PF zones ctured, and arepossible

Radiolarian zones ) clay with biosilica

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site is moderate. biosiliceous clayis a Core U1404B-17H with co nannofossils. The 151 150 149 148 147 146 145 144 143 142 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore17H,Interval141.4-151.24m(CSF-A) Miocene 13 radiation gamma Natural (cps) 18 23 lor is 5GY(dark greenishgray)lor is and 5GY 4/1 5/1 (greenishgray 20 -2 -5 Reflectance L* -1 30 -2 a* -0 40 1 b* 1 50 3 2 53

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones ). The burrowing intensity Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site Core U1404B-18H is abiosiliceousclayCore U1404B-18Hwith nannofossils.The co 159 158 157 156 155 154 153 152 151 Depth CSF-A (m) U1404 800 700 600 500 400 300 200 100

0 Core length (cm) CC 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore18H,Interval150.9-159.44m(CSF-A) Oligocene 13 radiation gamma Natural 18 (cps) 23 lor is 5GYgreenish gray).lor 4/1(dark Burrowingis moderate. 20 -3 -5 Reflectance L* -2 30 0 a* -1 40 5 b* 0 50 10 1 54

0 susceptibility Magnetic

1 (IU)

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site Core U1404B-19H is abiosiliceousclayCore U1404B-19Hwith nannofossils.The co 165 164 163 162 161 160 159 158 157 166 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore19H,Interval156.4-166.15m(CSF-A) Oligocene 18 radiation gamma Natural 23 (cps) 28 lor is 5GYgreenish gray).lor 4/1(dark Burrowingis moderate. -3 -4 Reflectance L* -2 -2 42 a* -1 -0 b* 0 2 52 4 1 55

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site 7 (entire Section). flecks ofsulfides. Cm-scale darkerorgreen banding isobserved in Section 1.Moderate coring disturbancesarepresent in Sec moderate, with darker more abundantmottlinginSections 1-4. Two, decimeter-scalebluerintervals are freefromlargedarkmo Core U1404B-20H is a clay. The color is 5GY 4/1 (dark greenish gray). Possible sandy IRD patchesare observed in Section 1(2- 174 173 172 171 170 169 168 167 166 175 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore20H,Interval165.9-175.07m(CSF-A) Oligocene 11 radiation 16 gamma Natural (cps) 21 26 31 26 -2 -4 Reflectance L* -2 36 3 a* 1 46 b* 8 4 56 56

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones tion 1,0-2cm, and Section ttles, but contain smaller 63 cm). Burrowing63 cm). is Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site that are typical of the Miocene clay sequence of U1404 are present in Section 2, 114 and 117 cm, and Section 5, 73 cm. and Section 5, and 117cm, typicalSectionMiocene clay 2,114 that are present in of U1404 ofthe are sequence are disseminat moderate. Mottles Chondrities)(Planolites is and Core U1404B-21H is a greenish gray to dark greenish gray (5GY 4/1) clay. Possible sandy IRD patches are observed in Section 1(2-63cm). Burrowing 183 182 181 180 179 178 177 176 184 Depth CSF-A (m) U1404 800 700 600 500 400 300 200 100

0 Core length (cm) CC 1 8 7 6 5 4 3 2 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore21H,Interval175.4-184.19m(CSF-A) Oligocene 17 radiation gamma 22 Natural (cps) 27 32 ed sulfides followinged burrowing.More prominentlygreen, greeni 24 -4 -5 Reflectance L* -2 34 1 a* 1 44 b* 6 3 54 57

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones sh gray (5G 5/1) mottles,

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site underlain by athin-grey layerby (centimeterscale),underlain a are disseminatedsulfidesfollowing burrowing. Two distinctsequences Core U1404B-22Hbluer (5GYis a to browner 5/1) gray (10Y5/1) greenish clay. Burrowing(Planolitesis moderat andChondrities) 193 192 191 190 189 188 187 186 185 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore22H,Interval184.1-193.93m(CSF-A) Oligocene 25 radiation gamma 30 Natural (cps) 35 40 relatively unmottled,bluerinterval (decimeterscale,clay). -3 -4 Reflectance L* were observed with abrowner interval (decimeter scale,clay with nannofossil), -2 -2 42 a* -1 b* 0 0 52 58

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones e. Mottles (up to 5GYMottles (upto e. 4/1) Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site through CCisutterlydisturbedbyflow-in. green layersarealsofoundfrom0-21cm.Apronouncedbrownlayerissituatedat120-129Indistinctmmtocmscalemottlin from 40-122.Agreen,?glaconitenoduleoccurs23-26cm(duringaintervalofrelativelyheavybioturbation),followedby (attributed to cmandheavybrown(5GY5/1)mottling bioturbation ofsulfides)variesthroughoutwithmoderatedensitymottlingandlayeringfrom0-21129-150 predominatelycm. Section 2is 123 aheavilyand layeredbrowner mottled greenishgrey(10Ycm). T 5/1)clayand 58-93 (0-21cm occur. Bioturbation ranges from and notablymoderate Zoophycusto complete, includes burrows.The darkest(10Y broadest ?sulfide layersbetween 4/1), occur 118and (10Y 5/1) clay (0-21 cm and 58-93 cm). A slightly bluer, less mottled interval (21-58 cm) and an interval characterized by cent predominatelyheavily1 is a Sectionmot 73 cm. and Section 5, and 117cm, Section 2,114 are presentin clayof U1404 sequence sulfides followingare disseminated burrowing.graymoderate. Mottles More prominently5/1) green, greenish Chondrities) is (5G Core U1404B-23H is a greenish gray to dark greenish gray (5GY 4/1) clay. Possible sandy IRD patches are observed in Section 1 202 201 200 199 198 197 196 195 194 Depth CSF-A (m) U1404 500 400 300 200 100 800 700 600

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore23H,Interval193.6-202.28m(CSF-A) Oligocene 24 radiation gamma Natural (cps) 44 64 20 -6 -9 Reflectance L* -4 -1 40 a* 1 4 b* 6 60 9 59

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones (111-150 cm) scale ?sulfidelayeringimeter agreenhorizonat53-56cm,mm-scale mottles, that are typical of the Miocene typicalthat are ofthe mottles, g andlayeringthroughout.Section5 he degree of mottlingandlayer he degree tled and layeredtled and brownergreenish grey Radiolarian zones (2-63 cm). Burrowing (Planolites and

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site of decimeterscalecycles (sections2&3). The cabonatecontinuesdown intoSection 4toabout30cm. 2.5y(light olivechange is brown), 5/3 coresponding color 2.5Y gray), to 2.5Y 7/1(light (light yellowish to 6/3 brown). Twow Core U1404B-24Hthe Eocene/Oligocene has transition.Thevaries Core fromabarrenclaya nannofossiloozetoclayey to nann 208 207 206 205 204 203 Depth CSF-A (m) U1404 600 500 400 300 200 100

0 Core length (cm) CC 5 4 3 2 1 Section core IIb III Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore24H,Interval202.2-208.78m(CSF-A) late Eocene Oligocene 16 radiation gamma Natural 26 (cps) 36 46 38 -2 0 Reflectance L* 48 2 a* 8 58 4 b* 18 68 6 60

10 susceptibility Magnetic (IU)

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones hole Sections are composed hole Sections PF zones

Radiolarian zones ofossil ooze.The

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site with sublte grey tobrown variation down to 2.5Y 7/1 (light gray). Section 2 has micro dolomitecrystals. The Core is moderatel Core U1404B-25His 2.5Yis largelydominant color clay. Theclay 6/2 of fossils. 1 is (light brownish Sectionrest isbarren with nannofossils, the gray) 215 214 213 212 211 210 209 Depth CSF-A (m) U1404 600 500 400 300 200 100

0 Core length (cm) CC 5 4 3 2 1 Section core III Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore25H,Interval208.7-215.23m(CSF-A) late Eocene 31 radiation 36 gamma Natural (cps) 41 46 51 32 -1 3 Reflectance L* 8 42 1 a* 13 b* 3 52 18 61

10 susceptibility Magnetic (IU) 100

1000 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones y burrowed.

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site the Core with 10Y 5/1 (greenish gray) mottles common.Sections 5, 6,and CC are all disturbedby flow in. Core U1404B-26H is mostly clay inthe first two Sections, grading into aclay with nannofossils. The coloris 2.5Y 6/2 (light b 223 222 221 220 219 218 217 216 Depth CSF-A (m) U1404 800 700 600 500 400 300 200 100

0 Core length (cm) CC 6 5 4 3 2 1 Section core III Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore26H,Interval215.2-223.33m(CSF-A) late Eocene 35 radiation gamma Natural 40 (cps) 45 50 42 -2 -2 Reflectance L* 47 3 0 a* 52 8 2 b* 57 13 4 62

10 susceptibility Magnetic (IU)

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones rownish gray) at the top of

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site bioturbation resultsinalightly spottedsurface.Sections 5andCC areflow-in andcompletely destroyed. Core U1404B-27His lightbrownishgray (2.5Yclay 6/2) gray withgrading intogreenish (10Y nannofossils clay. 4/1) Mottlingis 228 227 226 225 224 Depth CSF-A (m) U1404 500 400 300 200 100

0 Core length (cm) CC 1 5 4 3 2 Section core IV III Lithologic unit descriptions image Core lithology Graphic Age Hole 342-U1404BCore27H,Interval223.3-228.75m(CSF-A) middle Eocene 26 radiation gamma Natural (cps) 36 46 32 -2 -7 Reflectance L* -2 42 0 a* 3 52 b* 2 8 63

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones associated with

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones associated with

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site present asmottlesand meter scalesectionsthatarepredominant Core U1403C-2H is a dark greenish gray (5GY 4/1) biosiliceous ooze wi 25 24 23 22 21 20 19 18 17 16 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

Unknown Hole 342-U1404CCore2H,Interval16.0-25.96m(CSF-A) 10 radiation gamma Natural (cps) 12 14 ly dark greenishgray orgreenishgray. Bioturbation toextensive.is moderate 30 -4 -4 Reflectance L* -2 th clay to a greenish grayth clay(10GYto a clay 5/1) withbiosilica. 40 -2 a* 1 b* 50 0 4 65

1 susceptibility Magnetic (IU) 10

100 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones Color variations Color are

Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site Core U1404C-3H is a biosiliceous clay that is mottled and 5GYbiosiliceous clay( is mottled is a 4/1 that Core U1404C-3H 34 33 32 31 30 29 28 27 26 Depth CSF-A (m) U1404 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

Unknown Hole 342-U1404CCore3H,Interval25.5-34.51m(CSF-A) 9 radiation gamma Natural 11 (cps) 13 15 26 -3 -3 dark greenish gray) in color. The Core is moderatelygray)Core is color. Thedark greenish burrow in Reflectance L* -2 -1 36 a* -1 2 46 b* 0 5 56 66

1 susceptibility Magnetic (IU)

10 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones ed. Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site Core U1404C-4H is a biosiliceous clay that is mottled and 5GYbiosiliceous clay( is mottled is a 4/1 that Core U1404C-4H 44 43 42 41 40 39 38 37 36 35 Depth CSF-A (m) U1404 100045 900 800 700 600 500 400 300 200 100

0 Core length (cm) CC 7 6 5 4 3 2 1 Section core IIb Lithologic unit descriptions image Core lithology Graphic Age

Unknown Hole 342-U1404CCore4H,Interval35.0-45.01m(CSF-A) 10 radiation gamma Natural 12 (cps) 14 16 30 -3 -4 dark greenish gray) in color. The Core is moderatelygray)Core is color. Thedark greenish burrow in Reflectance L* -2 -2 40 a* -1 1 b* 50 0 4 67

1 susceptibility Magnetic (IU)

10 Bioturbation Bioturbation 1 intensity 2 3 4 5 6

Nannofossil zones

PF zones ed. Radiolarian zones

Disturbance type Visual Disturbance intensity

Sedimentary core structures

Lithological descriptions accessories

Shipboard samples Site U1404 core descriptions Smear slides

342-U1404A-1H-3-W 80/80-SED 3.51 3.51 20 80 F [A58] P [A58] P [A58] P [A58] VA[A58] P [A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-1H-4-W 30/30-SED 4 4 20 80 F [A58] P [A58] P [A58] P [A58] VA[A58] P [A58] P [A58] F [A58] clay [Leg339] clay with rock silty clay with rock 342-U1404A-2H-5-W 124/124-SED 11.39 11.39 yellowish 30 70 C [A58] F [A58] A [A58] P [A58] P [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] fragments fragments 342-U1404A-2H-6-W 18/18-SED 11.83 11.83 yellow band 25 75 F [A58] P [A58] P [A58] A [A58] A [A58] P [A58] oxide rich silty clay [Leg339] oxide rich silty clay with rock silty clay with rock 342-U1404A-2H-7-W 100/100-SED 13.74 13.74 3 27 70 C [A58] F [A58] P [A58] C [A58] P [A58] P [A58] F [A58] P [A58] silty [Leg339] clay [Leg339] fragments fragments 342-U1404A-2H-7-W 24/24-SED 12.98 12.98 light brown 10 90 F [A58] P [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-2H-7-W 85/85-SED 13.59 13.59 green 10 90 F [A58] F [A58] F [A58] VA[A58] P [A58] P [A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-2H-CC-A 28/28-SED 14.23 14.23 greenish dark brown 30 70 F [A58] F [A58] P [A58] P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] P [A58] P [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-3H-1-W 140/140-SED 15.6 15.6 dark green nodular part P [A58] P [A58] A [A58] VA[A58] glauconitic silt [Leg339] glauconitic silt

342-U1404A-3H-2-W 80/80-SED 16.5 16.5 brownish 30 70 F [A58] F [A58] P [A58] F [A58] A [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-3H-6-W 45/45-SED 21.85 21.85 greenish 3 57 40 A [A58] F [A58] F [A58] A [A58] P [A58] P [A58] F [A58] clayey [Leg339] silt [Leg339] clayey silt

342-U1404A-3H-CC-A 17/17-SED 22.38 22.38 3 30 67 F [A58] F [A58] P [A58] F [A58] VA[A58] P [A58] P [A58] silty [Leg339] clay [Leg339] silty clay diatomaceous 342-U1404A-5H-1-W 18/18-SED 33.38 33.38 F [A58] A [A58] P [A58] A [A58] F [A58] F [A58] P [A58] F [A58] clay [Leg339] diatomaceous clay [Leg339] clayey diatom diatom ooze with radiolarians 342-U1404A-5H-1-W 75/75-SED 33.95 33.95 F [A58] A [A58] P [A58] VA[A58] C [A58] F [A58] P [A58] F [A58] F [A58] clayey [Leg339] ooze with [Leg339] [Leg339] radiolarians diatomaceous 342-U1404A-5H-2-W 30/30-SED 35 35 F [A58] F [A58] P [A58] VA[A58] P [A58] A [A58] F [A58] P [A58] P [A58] F [A58] clay [Leg339] diatomaceous clay [Leg339] with diatoms 342-U1404A-5H-4-W 80/80-SED 38.5 38.5 F [A58] F [A58] P [A58] VA[A58] C [A58] F [A58] P [A58] P [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] clayey diatom diatom ooze with radiolarians 342-U1404A-5H-CC-A 12/12-SED 40.61 40.61 P [A58] P [A58] A [A58] P [A58] P [A58] A [A58] C [A58] P [A58] P [A58] F [A58] clayey [Leg339] ooze with [Leg339] [Leg339] radiolarians 342-U1404A-6H-4-W 26/26-SED 47.46 47.46 F [A58] VA[A58] P [A58] P [A58] F [A58] F [A58] P [A58] silty [Leg339] clay [Leg339] silty clay with diatoms silty clay with 342-U1404A-6H-5-W 47/47-SED 48.87 48.87 F [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] C [A58] F [A58] P [A58] P [A58] silty [Leg339] clay [Leg339] [Leg339] diatoms diatom ooze clayey diatom 342-U1404A-6H-CC-A 23/23-SED 49.38 49.38 P [A58] P [A58] P [A58] A [A58] P [A58] F [A58] A [A58] F [A58] F [A58] P [A58] clayey [Leg339] [Leg339] ooze with diatoms 342-U1404A-7H-1-A 45/45-SED 52.65 52.65 F [A58] P [A58] A [A58] P [A58] P [A58] F [A58] F [A58] C [A58] F [A58] P [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] diatom ooze with nannofossils diatom ooze with 342-U1404A-7H-3-A 106/106-SED 56.26 56.26 F [A58] C [A58] P [A58] F [A58] C [A58] A [A58] F [A58] F [A58] [Leg339] [Leg339] nannofossils diatom ooze with nannofossils diatom ooze with 342-U1404A-7H-4-A 86/86-SED 57.56 57.56 P [A58] P [A58] C [A58] P [A58] P [A58] P [A58] F [A58] C [A58] A [A58] F [A58] P [A58] F [A58] [Leg339] [Leg339] nannofossils diatom ooze diatom ooze with 342-U1404A-7H-CC-A 15/15-SED 59.13 59.13 P [A58] P [A58] C [A58] P [A58] P [A58] VA[A58] F [A58] F [A58] F [A58] P [A58] with clay [Leg339] [Leg339] clay diatom ooze with nannofossils diatom ooze with 342-U1404A-8H-3-A 10/10-SED 64.8 64.8 F [A58] C [A58] P [A58] P [A58] F [A58] C [A58] A [A58] F [A58] F [A58] F [A58] [Leg339] [Leg339] nannofossils diatom ooze with nannofossils diatom ooze with 342-U1404A-8H-4-A 43/43-SED 66.63 66.63 F [A58] C [A58] P [A58] P [A58] P [A58] P [A58] C [A58] A [A58] F [A58] P [A58] F [A58] P [A58] [Leg339] [Leg339] nannofossils with diatoms 342-U1404A-8H-6-A 10/10-SED 69.3 69.3 F [A58] A [A58] P [A58] P [A58] F [A58] F [A58] C [A58] F [A58] P [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] diatom ooze clayey diatom 342-U1404A-8H-CC-A 22/22-SED 71.3 71.3 P [A58] F [A58] A [A58] P [A58] P [A58] P [A58] P [A58] A [A58] F [A58] F [A58] P [A58] P [A58] F [A58] clayey [Leg339] [Leg339] ooze silty clay with with diatoms, 342-U1404A-9H-3-A 34/34-SED 74.54 74.54 P [A58] A [A58] F [A58] C [A58] C [A58] F [A58] F [A58] P [A58] silty [Leg339] clay [Leg339] diatoms, nannofossils nannofossils with diatoms silty clay with 342-U1404A-9H-7-A 27/27-SED 80.47 80.47 F [A58] VA[A58] P [A58] P [A58] P [A58] C [A58] F [A58] P [A58] F [A58] F [A58] silty [Leg339] clay [Leg339] [Leg339] diatoms with diatoms silty clay with 342-U1404A-10H-2-A 27/27-SED 82.47 82.47 brownish F [A58] A [A58] P [A58] C [A58] F [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] [Leg339] diatoms 342-U1404A-10H-3-W 45/45-SED 84.15 84.15 A [A58] A [A58] P [A58] P [A58] F [A58] F [A58] P [A58] clayey [Leg339] silt [Leg339] clayey silt silty clay with with nannofossils, 342-U1404A-10H-3-W 54/54-SED 84.24 84.24 C [A58] A [A58] P [A58] P [A58] C [A58] C [A58] F [A58] P [A58] silty [Leg339] clay [Leg339] nannofossils, diatoms diatoms nannofossil with diatoms nannofossil silty 342-U1404A-10H-4-A 80/80-SED 86 86 greenish P [A58] P [A58] A [A58] P [A58] P [A58] A [A58] C [A58] F [A58] P [A58] F [A58] F [A58] silty clay [Leg339] [Leg339] clay with diatoms 342-U1404A-10H-5-A 71/71-SED 87.41 87.41 greenish C [A58] A [A58] P [A58] P [A58] P [A58] F [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

nannofossil diatom ooze nannofossil diatom 342-U1404A-11H-3-A 36/36-SED 93.42 93.42 P [A58] P [A58] C [A58] F [A58] A [A58] P [A58] P [A58] A [A58] P [A58] F [A58] F [A58] with clay [Leg339] [Leg339] [Leg339] ooze with clay clayey diatom diatom ooze with nannofossils 342-U1404A-11H-3-A 47/47-SED 93.53 93.53 F [A58] A [A58] C [A58] A [A58] F [A58] P [A58] F [A58] F [A58] clayey [Leg339] ooze with [Leg339] [Leg339] nannofossils diatomaceous with nannofossils diatomaceous clay 342-U1404A-11H-4-W 87/87-SED 95.39 95.39 VA[A58] P [A58] C [A58] P [A58] P [A58] A [A58] F [A58] F [A58] F [A58] clay [Leg339] [Leg339] [Leg339] with nannofossils

342-U1404A-12H-1-W 95/95-SED 97.15 97.15 P [A58] VA[A58] P [A58] F [A58] F [A58] F [A58] F [A58] clay [Leg339] clay with biogenic clay with biogenic 342-U1404A-12H-4-W 45/45-SED 101 101 F [A58] P [A58] A [A58] F [A58] F [A58] F [A58] F [A58] F [A58] clay [Leg339] materials materials with diatoms 342-U1404A-12H-5-W 116/116-SED 103.16 103.16 F [A58] VA[A58] P [A58] P [A58] F [A58] C [A58] F [A58] F [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] with diatoms 342-U1404A-13H-2-W 75/75-SED 106.97 106.97 P [A58] VA[A58] F [A58] F [A58] P [A58] C [A58] F [A58] P [A58] F [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] with diatoms 342-U1404A-13H-3-W 70/70-SED 108.43 108.43 F [A58] P [A58] VA[A58] F [A58] C [A58] F [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] with diatoms 342-U1404A-13H-5-W 55/55-SED 111.28 111.28 F [A58] F [A58] VA[A58] F [A58] C [A58] F [A58] F [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] diatom ooze clayey diatom 342-U1404A-14H-1-W 35/35-SED 115.55 115.55 P [A58] F [A58] P [A58] F [A58] A [A58] P [A58] F [A58] A [A58] F [A58] F [A58] F [A58] F [A58] clayey [Leg339] [Leg339] ooze diatomaceous with nannofossils diatomaceous clay 342-U1404A-14H-1-W 43/43-SED 115.63 115.63 P [A58] A [A58] P [A58] F [A58] C [A58] A [A58] F [A58] P [A58] P [A58] P [A58] F [A58] F [A58] clay [Leg339] [Leg339] [Leg339] with nannofossils diatomaceous diatomaceous 342-U1404A-14H-6-W 73/73-SED 123.43 123.43 P [A58] P [A58] VA[A58] F [A58] F [A58] A [A58] F [A58] F [A58] F [A58] claystone [Leg339] [Leg339] claystone diagenetic diagenetic 342-U1404A-15H-3-W 76/76-SED 128.39 128.39 VA[A58] F [A58] carbonate carbonate with diatoms 342-U1404A-15H-4-W 95/95-SED 130.04 130.04 F [A58] F [A58] F [A58] VA[A58] C [A58] F [A58] P [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] 342-U1404A-15H-4-W 97/97-SED 130.06 130.06 F [A58] F [A58] P [A58] VA[A58] P [A58] C [A58] F [A58] F [A58] clay with diatoms clay with diatoms

342-U1404A-15H-4-W 98/98-SED 130.07 130.07 F [A58] C [A58] VA[A58] P [A58] F [A58] F [A58] P [A58] P [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-15H-5-W 55/55-SED 131.1 131.1 F [A58] F [A58] F [A58] VA[A58] F [A58] P [A58] F [A58] F [A58] F [A58] F [A58] clay [Leg339] clay

342-U1404A-15H-7-W 55/55-SED 134.08 134.08 F [A58] F [A58] P [A58] VA[A58] P [A58] F [A58] P [A58] F [A58] F [A58] F [A58] P [A58] clay [Leg339] clay

342-U1404A-16H-4-W 126/126-SED 139.96 139.96 F [A58] P [A58] A [A58] F [A58] P [A58] F [A58] F [A58] clay [Leg339] clay with diatoms 342-U1404A-16H-4-W 78/78-SED 139.48 139.48 F [A58] F [A58] P [A58] VA[A58] F [A58] C [A58] F [A58] F [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] diatomaceous 342-U1404A-16H-6-W 75/75-SED 142.45 142.45 P [A58] VA[A58] F [A58] A [A58] F [A58] F [A58] F [A58] clay [Leg339] diatomaceous clay [Leg339]

68 Site U1404 core descriptions Smear slides

Top Bottom Depth Depth Complete lithology abundance (name) (name) abundance (name) abundance (name) fragments abundance (name) abundance (name) (name) (name) (name) (name) abundance (name) abundance [%] (name) abundance (name) abundance (name) abundance (name) (name) abundance (name) abundance (name) (name) pyx, amph abundance (name) (name) (name) Description of where Sand texture [%] Silt texture [%] Clay texture [%] Lithic grains abundance Quartz abundance Calcite, allogenic Glass abundance Zeolite - phillipsite, Chlorite abundance Clay minerals abundance (name) Feldspar abundance Mica - biotite, musc Ferromagnesian - ol, Heavy minerals Zircon abundance Opaques abundance Oxide abundance Clay minerals, Glauconite abundance Dolomite, authigenic Sulfides, authigenic Pyrite, authigenic Calcite, authigenic Calcareous nannofossils Benthic foraminifers Planktonic foraminifers Foraminifers abundance Planktonic foraminifers Ostracods abundance Diatoms abundance Radiolarians abundance Silicoflagellate, ebridian, Pollen and spores Other microfossils Echinoderm fragments Biosiliceous fossil Sponge spicule Fish scales abundance Fish teeth abundance Organic matter Wood fragments (name) fragments abundance (name) (name) abundance (name) (name) clinoptilolite abundance (name) smear slide taken actiniscidian abundance abundance (name) authigenic abundance (name) abundance (name) (name) abundance (name) (name) abundance (name) Sample [m] [m] (name) Prefix Principal lithology Suffix name with diatoms silty clay with 342-U1404A-17H-2-W 55/55-SED 145.76 145.76 25 75 F [A58] VA[A58] P [A58] F [A58] C [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] [Leg339] diatoms 342-U1404A-17H-5-W 65/65-SED 150.23 150.23 30 70 F [A58] VA[A58] P [A58] F [A58] F [A58] P [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay with radiolarians silty clay with 342-U1404A-18H-3-A 90/90-SED 157.12 157.12 greenish F [A58] VA[A58] P [A58] P [A58] P [A58] F [A58] C [A58] F [A58] F [A58] silty [Leg339] clay [Leg339] [Leg339] radiolarians with radiolarians silty clay with 342-U1404A-18H-4-A 64/64-SED 158.38 158.38 brownish F [A58] VA[A58] P [A58] P [A58] P [A58] F [A58] C [A58] F [A58] silty [Leg339] clay [Leg339] [Leg339] radiolarians with radiolarians silty clay with 342-U1404A-18H-5-A 77/77-SED 160.02 160.02 brownish F [A58] VA[A58] P [A58] P [A58] F [A58] F [A58] C [A58] F [A58] P [A58] silty [Leg339] clay [Leg339] [Leg339] radiolarians 342-U1404A-18H-5-A 82/82-SED 160.07 160.07 greenish F [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] F [A58] F [A58] F [A58] F [A58] silty [Leg339] clay [Leg339] silty clay with nannofossils clay with 342-U1404A-19H-2-A 93/93-SED 165.13 165.13 brownish F [A58] P [A58] A [A58] P [A58] P [A58] C [A58] F [A58] F [A58] F [A58] P [A58] clay [Leg339] [Leg339] nannofossils 342-U1404A-19H-3-A 120/120-SED 166.9 166.9 greenish F [A58] P [A58] VA[A58] P [A58] P [A58] F [A58] P [A58] P [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-19H-5-A 106/106-SED 169.78 169.78 F [A58] A [A58] P [A58] P [A58] F [A58] P [A58] clay [Leg339] clay

342-U1404A-19H-6-A 38/38-SED 170.62 170.62 F [A58] VA[A58] P [A58] P [A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-19H-CC-W 19/19-SED 172.59 172.59 F [A58] P [A58] P [A58] VA[A58] P [A58] P [A58] F [A58] P [A58] F [A58] P [A58] P [A58] C [A58] clay [Leg339] clay

342-U1404A-20H-3-A 41/41-SED 175.61 175.61 F [A58] P [A58] VA[A58] P [A58] F [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-20H-5-A 58/58-SED 178.78 178.78 greenish F [A58] F [A58] F [A58] VA[A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-20H-CC-W 27/27-SED 182.01 182.01 F [A58] C [A58] F [A58] A [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-21H-4-A 80/80-SED14 187 187 F [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-21H-5-A 85/85-SED 188.55 188.55 30 70 F [A58] P [A58] VA[A58] P [A58] P [A58] F [A58] P [A58] P [A58] P [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-21H-7-A 14/14-SED 190.84 190.84 F [A58] F [A58] VA[A58] P [A58] P [A58] P [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-21H-CC-W 21/21-SED 191.56 191.56 F [A58] F [A58] P [A58] A [A58] P [A58] F [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-22H-2-A 69/69-SED 193.39 193.39 F [A58] VA[A58] P [A58] P [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-22H-CC-A 28/28-SED 194.6 194.6 F [A58] P [A58] VA[A58] P [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-22H-CC-W 66/66-SED 194.98 194.98 F [A58] P [A58] F [A58] VA[A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay silty clay with 342-U1404A-23H-1-A 101/101-SED 195.91 195.91 C [A58] P [A58] VA[A58] P [A58] silty [Leg339] clay [Leg339] with quartz quartz 342-U1404A-23H-2-A 104/104-SED 197.44 197.44 5 95 F [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay nannofossil ooze 342-U1404A-23H-4-A 125/125-SED 200.65 200.65 F [A58] P [A58] VA[A58] nannofossil ooze [Leg339] silty clay with 342-U1404A-23H-4-A 78/78-SED 200.18 200.18 C [A58] P [A58] VA[A58] P [A58] silty [Leg339] clay [Leg339] with quartz quartz nannofossil ooze 342-U1404A-23H-5-A 30/30-SED 201.2 201.2 F [A58] P [A58] P [A58] VA[A58] nannofossil ooze [Leg339] nannofossil ooze 342-U1404A-23H-6-A 43/43-SED 202.83 202.83 P [A58] P [A58] VA[A58] nannofossil ooze [Leg339] nannofossil ooze 342-U1404A-23H-CC-W 23/23-SED 204.3 204.3 P [A58] P [A58] P [A58] VA[A58] P [A58] nannofossil ooze [Leg339] with nannofossils clay with 342-U1404A-24H-1-W 114/114-SED 205.44 205.44 F [A58] VA[A58] P [A58] P [A58] P [A58] C [A58] clay [Leg339] [Leg339] nannofossils nannofossil ooze clayey nannofossil 342-U1404A-24H-1-W 37/37-SED 204.67 204.67 slightly white P [A58] P [A58] A [A58] P [A58] VA[A58] F [A58] clayey [Leg339] [Leg339] ooze 342-U1404A-24H-2-W 100/100-SED 206.8 206.8 P [A58] P [A58] VA[A58] F [A58] clay [Leg339] clay

342-U1404A-24H-2-W 75/75-SED 206.55 206.55 brown 1 99 F [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay with nannofossils clay with 342-U1404A-24H-3-W 73/73-SED 208.03 208.03 brown F [A58] VA[A58] P [A58] C [A58] F [A58] clay [Leg339] [Leg339] nannofossils nannofossil ooze nannofossil ooze 342-U1404A-24H-4-W 11/11-SED 208.91 208.91 yellowish band P [A58] C [A58] P [A58] VA[A58] F [A58] with clay [Leg339] [Leg339] with clay nannofossil ooze 342-U1404A-24H-4-W 50/50-SED 209.3 209.3 white P [A58] P [A58] P [A58] VA[A58] nannofossil ooze [Leg339] nannofossil ooze 342-U1404A-24H-4-W 79/79-SED 209.59 209.59 P [A58] F [A58] P [A58] VA[A58] nannofossil ooze [Leg339] nannofossil ooze 342-U1404A-24H-5-W 83/83-SED 211.13 211.13 pinkish spot P [A58] P [A58] VA[A58] nannofossil ooze [Leg339] nannofossil ooze 342-U1404A-24H-6-W 101/101-SED 212.81 212.81 VA[A58] P [A58] nannofossil ooze [Leg339] nannofossil ooze clayey nannofossil 342-U1404A-24H-6-W 55/55-SED 212.35 212.35 P [A58] A [A58] P [A58] A [A58] F [A58] clayey [Leg339] [Leg339] ooze nannofossil 342-U1404A-25H-1-W 107/107-SED 213.87 213.87 grayish P [A58] A [A58] F [A58] A [A58] clay [Leg339] nannofossil clay [Leg339] 342-U1404A-25H-1-W 40/40-SED 213.2 213.2 yellowish brown P [A58] F [A58] VA[A58] P [A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-25H-3-W 75/75-SED 216.55 216.55 P [A58] F [A58] VA[A58] P [A58] P [A58] clay [Leg339] clay

342-U1404A-25H-4-W 120/120-SED 218.5 218.5 brown F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay nannofossil 342-U1404A-25H-4-W 15/15-SED 217.45 217.45 gray spot P [A58] P [A58] VA[A58] A [A58] clay [Leg339] nannofossil clay [Leg339] with nannofossils clay with 342-U1404A-25H-CC-W 25/25-SED 220.06 220.06 F [A58] P [A58] VA[A58] P [A58] F [A58] C [A58] clay [Leg339] [Leg339] nannofossils 342-U1404A-26H-1-W 102/102-SED 221.52 221.52 middle of blue layer F [A58] P [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay nannofossil 342-U1404A-26H-1-W 108/108-SED 221.58 221.58 A [A58] P [A58] F [A58] A [A58] F [A58] clay [Leg339] nannofossil clay [Leg339] with nannofossils clay with 342-U1404A-26H-1-W 72/72-SED 221.22 221.22 brown F [A58] VA[A58] P [A58] C [A58] clay [Leg339] [Leg339] nannofossils 342-U1404A-26H-1-W 92/92-SED 221.42 221.42 blue F [A58] VA[A58] P [A58] F [A58] P [A58] clay [Leg339] clay

342-U1404A-26H-1-W 94/94-SED 221.44 221.44 black thin layer P [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-26H-1-W 97/97-SED 221.47 221.47 upper blue layer P [A58] VA[A58] P [A58] F [A58] F [A58] clay [Leg339] clay nannofossil ooze clayey nannofossil 342-U1404A-26H-3-W 40/40-SED 223.9 223.9 A [A58] F [A58] VA[A58] F [A58] clayey [Leg339] [Leg339] ooze 342-U1404A-26H-4-W 75/75-SED 225.75 225.75 P [A58] VA[A58] P [A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-26H-6-W 25/25-SED 227.95 227.95 P [A58] P [A58] P [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-27H-1-W 90/90-SED 229.5 229.5 P [A58] P [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-27H-4-W 42/42-SED 233.52 233.52 P [A58] P [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-27H-5-W 124/124-SED 235.84 235.84 P [A58] P [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-27H-5-W 75/75-SED 235.35 235.35 P [A58] P [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-28H-2-W 75/75-SED 238.75 238.75 P [A58] P [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay with nannofossils clay with 342-U1404A-28H-3-W 16/16-SED 239.66 239.66 F [A58] VA[A58] P [A58] C [A58] F [A58] clay [Leg339] [Leg339] nannofossils 342-U1404A-28H-4-W 45/45-SED 241.45 241.45 P [A58] F [A58] VA[A58] P [A58] clay [Leg339] clay

69 Site U1404 core descriptions Smear slides

Top Bottom Depth Depth Complete lithology abundance (name) (name) abundance (name) abundance (name) fragments abundance (name) abundance (name) (name) (name) (name) (name) abundance (name) abundance [%] (name) abundance (name) abundance (name) abundance (name) (name) abundance (name) abundance (name) (name) pyx, amph abundance (name) (name) (name) Description of where Sand texture [%] Silt texture [%] Clay texture [%] Lithic grains abundance Quartz abundance Calcite, allogenic Glass abundance Zeolite - phillipsite, Chlorite abundance Clay minerals abundance (name) Feldspar abundance Mica - biotite, musc Ferromagnesian - ol, Heavy minerals Zircon abundance Opaques abundance Oxide abundance Clay minerals, Glauconite abundance Dolomite, authigenic Sulfides, authigenic Pyrite, authigenic Calcite, authigenic Calcareous nannofossils Benthic foraminifers Planktonic foraminifers Foraminifers abundance Planktonic foraminifers Ostracods abundance Diatoms abundance Radiolarians abundance Silicoflagellate, ebridian, Pollen and spores Other microfossils Echinoderm fragments Biosiliceous fossil Sponge spicule Fish scales abundance Fish teeth abundance Organic matter Wood fragments (name) fragments abundance (name) (name) abundance (name) (name) clinoptilolite abundance (name) smear slide taken actiniscidian abundance abundance (name) authigenic abundance (name) abundance (name) (name) abundance (name) (name) abundance (name) Sample [m] [m] (name) Prefix Principal lithology Suffix name glauconitic silty 342-U1404A-28H-5-W 21/21-SED 242.71 242.71 green layer A [A58] A [A58] F [A58] F [A58] glauconitic silty clay [Leg339] clay nannofossil ooze 342-U1404A-28H-5-W 46/46-SED 242.96 242.96 F [A58] F [A58] VA[A58] nannofossil ooze [Leg339] glauconitic silty with nannofossils 342-U1404A-28H-5-W 76/76-SED 243.26 243.26 green layer F [A58] A [A58] F [A58] P [A58] F [A58] C [A58] glauconitic silty clay [Leg339] clay with [Leg339] nannofossils nannofossil 342-U1404A-28H-CC-A 39/39-SED 244.13 244.13 10 90 F [A58] P [A58] VA[A58] P [A58] F [A58] P [A58] A [A58] P [A58] clay [Leg339] nannofossil clay [Leg339] 342-U1404A-29H-1-W 90/90-SED 245 245 P [A58] P [A58] VA[A58] F [A58] F [A58] clay [Leg339] clay with radiolarians clay with 342-U1404A-29H-3-W 75/75-SED 247.85 247.85 P [A58] P [A58] VA[A58] P [A58] F [A58] C [A58] F [A58] clay [Leg339] [Leg339] radiolarians 342-U1404A-29H-5-W 114/114-SED 251.24 251.24 P [A58] VA[A58] P [A58] P [A58] F [A58] F [A58] clay [Leg339] clay radiolarian radiolarian silty 342-U1404A-29H-CC-A 44/44-SED 253.08 253.08 40 60 F [A58] VA[A58] P [A58] A [A58] F [A58] P [A58] silty clay [Leg339] clay 342-U1404A-30H-1-A 110/110-SED 254.1 254.1 F [A58] F [A58] VA[A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-30H-1-A 64/64-SED 253.64 253.64 P [A58] F [A58] P [A58] VA[A58] P [A58] P [A58] P [A58] F [A58] F [A58] clay [Leg339] clay

342-U1404A-30H-3-A 60/60-SED 255.74 255.74 P [A58] F [A58] VA[A58] P [A58] P [A58] clay [Leg339] clay

342-U1404A-30H-4-A 94/94-SED 257.58 257.58 P [A58] P [A58] P [A58] VA[A58] P [A58] P [A58] clay [Leg339] clay

342-U1404A-31H-1-A 94/94-SED 260.64 260.64 F [A58] F [A58] VA[A58] P [A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-31H-2-A 60/60-SED 261.8 261.8 F [A58] P [A58] P [A58] VA[A58] P [A58] P [A58] P [A58] clay [Leg339] clay with nannofossils silty clay with 342-U1404A-31H-4-A 18/18-SED 264.38 264.38 P [A58] P [A58] P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] C [A58] silty [Leg339] clay [Leg339] [Leg339] nannofossils nannofossil nannofossil silty 342-U1404A-31H-CC-A 44/44-SED 265.31 265.31 F [A58] P [A58] A [A58] P [A58] P [A58] P [A58] A [A58] silty clay [Leg339] clay nannofossil nannofossil silty 342-U1404A-32H-1-W 14/14-SED 265.44 265.44 F [A58] P [A58] VA[A58] P [A58] P [A58] A [A58] F [A58] silty clay [Leg339] clay nannofossil nannofossil silty 342-U1404A-32H-3-A 60/60-SED 267.58 267.58 F [A58] VA[A58] P [A58] P [A58] F [A58] A [A58] F [A58] P [A58] silty clay [Leg339] clay nannofossil silty nannofossil with radiolarians 342-U1404A-32H-CC-A 63/63-SED 271.01 271.01 P [A58] A [A58] P [A58] P [A58] A [A58] C [A58] F [A58] silty clay clay with [Leg339] [Leg339] radiolarians nannofossil nannofossil silty 342-U1404A-33X-1-W 121/121-SED 272.21 272.21 P [A58] A [A58] F [A58] A [A58] F [A58] P [A58] P [A58] silty clay [Leg339] clay 342-U1404A-33X-3-A 15/15-SED 274.15 274.15 F [A58] P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] F [A58] clay [Leg339] clay

342-U1404A-33X-5-A 33/33-SED 277.33 277.33 F [A58] P [A58] VA[A58] F [A58] P [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-33X-6-A 20/20-SED 278.7 278.7 F [A58] F [A58] VA[A58] P [A58] P [A58] F [A58] P [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay

342-U1404A-34X-1-A 57/57-SED 281.27 281.27 P [A58] F [A58] VA[A58] P [A58] P [A58] F [A58] P [A58] P [A58] F [A58] silty [Leg339] clay [Leg339] silty clay with sponge silty clay with 342-U1404A-34X-3-W 82/82-SED 284.52 284.52 F [A58] F [A58] VA[A58] P [A58] P [A58] F [A58] C [A58] silty [Leg339] clay [Leg339] spicules [Leg339] sponge spicules 342-U1404A-34X-5-A 62/62-SED 287.32 287.32 F [A58] P [A58] VA[A58] P [A58] P [A58] F [A58] F [A58] P [A58] clay [Leg339] clay radiolarian 342-U1404A-34X-7-W 65/65-SED 289.85 289.85 10 90 P [A58] VA[A58] A [A58] F [A58] F [A58] clay [Leg339] radiolarian clay [Leg339] radiolarian radiolarian silty 342-U1404A-35X-1-A 54/54-SED 289.94 289.94 F [A58] A [A58] P [A58] P [A58] P [A58] A [A58] F [A58] F [A58] silty clay [Leg339] clay radiolarian radiolarian silty 342-U1404A-35X-2-W 25/25-SED 291.15 291.15 F [A58] VA[A58] P [A58] P [A58] A [A58] F [A58] silty clay [Leg339] clay radiolarian radiolarian silty 342-U1404A-35X-3-A 95/95-SED 293.22 293.22 P [A58] A [A58] P [A58] P [A58] A [A58] F [A58] silty clay [Leg339] clay radiolarian 342-U1404A-35X-CC-W 22/22-SED 294 294 F [A58] A [A58] P [A58] F [A58] A [A58] F [A58] F [A58] clay [Leg339] radiolarian clay [Leg339] radiolarian radiolarian silty 342-U1404A-36X-1-W 18/18-SED 299.28 299.28 F [A58] A [A58] P [A58] P [A58] P [A58] A [A58] F [A58] F [A58] silty clay [Leg339] clay

70 Site U1404 core descriptions Smear slides

Top Bottom Depth Depth Description of where smear Complete lithology abundance (name) (name) abundance (name) abundance (name) fragments abundance (name) abundance (name) (name) (name) (name) (name) abundance (name) abundance [%] (name) abundance (name) abundance (name) abundance (name) (name) abundance (name) abundance (name) (name) pyx, amph abundance (name) (name) (name) Sand texture [%] Silt texture [%] Clay texture [%] Lithic grains abundance Quartz abundance Calcite, allogenic Glass abundance Zeolite - phillipsite, Chlorite abundance Clay minerals abundance (name) Feldspar abundance Mica - biotite, musc Ferromagnesian - ol, Heavy minerals Zircon abundance Opaques abundance Oxide abundance Clay minerals, Glauconite abundance Dolomite, authigenic Sulfides, authigenic Pyrite, authigenic Calcite, authigenic Calcareous nannofossils Benthic foraminifers Planktonic foraminifers Foraminifers abundance Planktonic foraminifers Ostracods abundance Diatoms abundance Radiolarians abundance Silicoflagellate, ebridian, Pollen and spores Other microfossils Echinoderm fragments Biosiliceous fossil Sponge spicule Fish scales abundance Fish teeth abundance Organic matter Wood fragments (name) fragments abundance (name) (name) abundance (name) (name) clinoptilolite abundance (name) actiniscidian abundance abundance (name) authigenic abundance (name) abundance (name) (name) abundance (name) (name) abundance (name) Sample [m] [m] slide taken (name) Prefix Principal lithology Suffix name foraminiferal foraminiferal nannofossil ooze 342-U1404B-1H-1-A 50/50-SED 0.5 0.5 P [A58] C [A58] P [A58] C [A58] P [A58] VA[A58] A [A58] A [A58] P [A58] with clay [Leg339] nannofossil ooze [Leg339] [Leg339] with clay nannofossil ooze 342-U1404B-1H-2-A 60/60-SED 2.1 2.1 P [A58] F [A58] P [A58] P [A58] P [A58] VA[A58] F [A58] nannofossil ooze [Leg339] 342-U1404B-2H-5-W 75/75-SED 9.15 9.15 lithology 10 90 P [A58] C [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] F [A58] clay [Leg339] with quartz clay with quartz silty clay with 342-U1404B-2H-6-W 127/127-SED 11.17 11.17 lithology 25 75 F [A58] C [A58] VA[A58] F [A58] P [A58] silty [Leg339] clay [Leg339] with quartz quartz 342-U1404B-3H-4-W 75/75-SED 17.15 17.15 lithology 5 95 F [A58] VA[A58] F [A58] P [A58] P [A58] clay [Leg339] clay

diatomaceous with radiolarians diatomaceous clay 342-U1404B-4H-3-W 80/80-SED 25.2 25.2 lithology domain 1 major 5 95 P [A58] VA[A58] C [A58] F [A58] clay [Leg339] [Leg339] [Leg339] with radiolarians clayey diatom diatom ooze with radiolarians 342-U1404B-4H-4-W 88/88-SED 26.78 26.78 lithology domain 2 minor A [A58] P [A58] A [A58] C [A58] P [A58] clayey [Leg339] ooze with [Leg339] [Leg339] radiolarians with radiolarians clay with 342-U1404B-5H-3-W 85/85-SED 31.25 31.25 lithology domain 1 major 2 98 P [A58] VA[A58] C [A58] C [A58] P [A58] clay [Leg339] [Leg339] radiolarians 342-U1404B-5H-6-SED 35.09 35.09 lithology domain 2 minor F [A58] A [A58] P [A58] A [A58] A [A58] biosiliceous ooze biosiliceous ooze 342-U1404B-6H-3-W 85/85-SED 40.75 40.75 P [A58] C [A58] A [A58] A [A58] C [A58] with clay [Leg339] [Leg339] with clay biosiliceous ooze clayey biosiliceous 342-U1404B-6H-5-W 117/117-SED 44.07 44.07 F [A58] A [A58] A [A58] A [A58] F [A58] clayey [Leg339] [Leg339] ooze biosiliceous ooze biosiliceous ooze 342-U1404B-8H-2-W 30/30-SED 57.7 57.7 F [A58] A [A58] P [A58] A [A58] A [A58] F [A58] with clay [Leg339] [Leg339] with clay biosiliceous ooze with nannofossils biosiliceous ooze 342-U1404B-8H-6-W 109/109-SED 64.49 64.49 F [A58] C [A58] C [A58] A [A58] C [A58] F [A58] [Leg339] [Leg339] with nannofossils biosiliceous ooze 342-U1404B-9H-3-W 82/82-SED 69.22 69.22 F [A58] C [A58] A [A58] A [A58] F [A58] P [A58] biosiliceous ooze [Leg339] calcareous calcareous 342-U1404B-9H-5-W 65/65-SED 72.05 72.05 P [A58] F [A58] P [A58] A [A58] A [A58] A [A58] P [A58] F [A58] biosiliceous ooze biosiliceous ooze [Leg339] nannofossil biosiliceous ooze nannofossil 342-U1404B-10H-2-A 75/75-SED 77.15 77.15 P [A58] P [A58] A [A58] A [A58] A [A58] F [A58] P [A58] [Leg339] [Leg339] biosiliceous ooze 342-U1404B-10H-2-A 75/75-SED 77.15 77.15 F [A58] diatom ooze diatom ooze with 342-U1404B-11H-3-A 40/40-SED 87.8 87.8 light green interval P [A58] F [A58] P [A58] F [A58] F [A58] VA[A58] F [A58] F [A58] F [A58] with clay [Leg339] [Leg339] clay 342-U1404B-11H-3-A 40/40-SED 87.8 87.8 C [A58] nannofossil nannofossil calcareous ooze 342-U1404B-11H-4-A 128/128-SED 90.18 90.18 darker green P [A58] P [A58] P [A58] F [A58] A [A58] VA[A58] A [A58] C [A58] F [A58] with clay [Leg339] calcareous ooze [Leg339] [Leg339] with clay 342-U1404B-11H-4-A 128/128-SED 90.18 90.18 C [A58]

342-U1404B-12H-2-A 139/139-SED 96.79 96.79 brown layer P [A58] F [A58] P [A58] F [A58] F [A58] F [A58] F [A58] F [A58] clay [Leg339] clay

342-U1404B-12H-2-A 139/139-SED 96.79 96.79 VA[A58] with diatoms clayey silt with 342-U1404B-12H-3-A 83/83-SED 97.73 97.73 IRD A [A58] F [A58] P [A58] F [A58] F [A58] P [A58] C [A58] F [A58] F [A58] F [A58] clayey [Leg339] silt [Leg339] [Leg339] diatoms 342-U1404B-12H-3-A 83/83-SED 97.73 97.73 A [A58]

342-U1404B-12H-5-A 61/61-SED 100.51 100.51 lighter green P [A58] P [A58] F [A58] F [A58] P [A58] F [A58] P [A58] clay [Leg339] clay

342-U1404B-12H-5-A 61/61-SED 100.51 100.51 VA[A58]

342-U1404B-13H-3-A 109/109-SED 107.49 107.49 dark bleb VA[A58]

342-U1404B-13H-3-A 109/109-SED 107.49 107.49 C [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] sulfide sulfide

342-U1404B-13H-5-SED 110.65 110.65 C [A58]

342-U1404B-13H-5-A 125/125-SED 110.65 110.65 background green material VA[A58] P [A58] P [A58] P [A58] P [A58] F [A58] F [A58] F [A58] P [A58] clay [Leg339] clay

342-U1404B-13H-6-A 91/91-SED 111.81 111.81 very green bleb P [A58] P [A58] F [A58] F [A58] P [A58] F [A58] F [A58] clay [Leg339] clay

342-U1404B-13H-6-A 91/91-SED 111.81 111.81 VA[A58] with diatoms 342-U1404B-14H-1-A 114/114-SED 114.04 114.04 P [A58] P [A58] P [A58] C [A58] P [A58] F [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] 342-U1404B-14H-1-A 114/114-SED 114.04 114.04 VA[A58]

342-U1404B-14H-6-A 100/100-SED 121.4 121.4 brighter green P [A58] VA[A58] P [A58] P [A58] P [A58] F [A58] P [A58] F [A58] F [A58] clay [Leg339] clay with diatoms 342-U1404B-15H-4-A 50/50-SED 127.4 127.4 P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] C [A58] P [A58] F [A58] F [A58] clay [Leg339] clay with diatoms [Leg339] 342-U1404B-15H-6-A 60/60-SED 130.5 130.5 black spot P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] P [A58] P [A58] F [A58] F [A58] F [A58] P [A58] clay [Leg339] clay

342-U1404B-16H-2-A 50/50-SED 133.45 133.45 P [A58] VA[A58] P [A58] F [A58] P [A58] P [A58] P [A58] P [A58] clay [Leg339] clay with diatoms 342-U1404B-16H-5-A 70/70-SED 137.05 137.05 P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] C [A58] P [A58] P [A58] P [A58] clay [Leg339] clay with diatoms [Leg339] clayey biosiliceous biosiliceous ooze with nannofossils 342-U1404B-17H-3-W 69/69-SED 145.09 145.09 F [A58] A [A58] P [A58] P [A58] C [A58] C [A58] C [A58] F [A58] clayey [Leg339] ooze with [Leg339] [Leg339] nannofossils biogenic ooze clayey biogenic 342-U1404B-17H-6-W 25/25-SED 149.17 149.17 F [A58] A [A58] P [A58] C [A58] A [A58] F [A58] clayey [Leg339] [Leg339] ooze biosiliceous ooze clayey biosiliceous 342-U1404B-18H-2-W 85/85-SED 153.25 153.25 F [A58] A [A58] P [A58] F [A58] C [A58] A [A58] F [A58] clayey [Leg339] [Leg339] ooze radiolarian with nannofossils radiolarian clay 342-U1404B-18H-5-W 128/128-SED 158.2 158.2 F [A58] A [A58] P [A58] P [A58] P [A58] P [A58] C [A58] F [A58] C [A58] F [A58] clay [Leg339] [Leg339] [Leg339] with nannofossils biosiliceous with nannofossils biosiliceous clay 342-U1404B-19H-1-W 86/86-SED 157.26 157.26 A [A58] C [A58] F [A58] C [A58] F [A58] clay [Leg339] [Leg339] [Leg339] with nannofossils biosiliceous with nannofossils biosiliceous clay 342-U1404B-19H-3-W 100/100-SED 160.4 160.4 A [A58] F [A58] F [A58] A [A58] F [A58] clay [Leg339] [Leg339] [Leg339] with nannofossils 342-U1404B-20H-4-A 100/100-SED 171.4 171.4 dominant lithology P [A58] VA[A58] P [A58] P [A58] P [A58] F [A58] F [A58] P [A58] clay [Leg339] clay

342-U1404B-21H-2-A 122/122-SED 177.28 177.28 green bleb P [A58] P [A58] P [A58] P [A58] P [A58] P [A58] clay [Leg339] clay

342-U1404B-21H-3-A 106/106-SED 178.62 178.62 lighter green section P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] P [A58] clay [Leg339] clay

342-U1404B-21H-4-A 56/56-SED 179.62 179.62 brown bleb P [A58] VA[A58] P [A58] F [A58] P [A58] P [A58] P [A58] clay [Leg339] clay clay with with nannofossils 342-U1404B-22H-3-A 107/107-SED 188.17 188.17 darker interval P [A58] VA[A58] P [A58] P [A58] C [A58] P [A58] P [A58] clay [Leg339] nannofossils [Leg339] [Leg339] 342-U1404B-22H-3-A 121/121-SED 188.31 188.31 lighter interval P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] clay [Leg339] clay background blue/geren 342-U1404B-22H-5-A 39/39-SED 190.51 190.51 P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] clay [Leg339] clay (lighter) 342-U1404B-23H-1-A 123/123-SED 194.83 194.83 dark grey horizon F [A58] VA[A58] P [A58] P [A58] clay [Leg339] clay

342-U1404B-23H-1-A 47/47-SED 194.07 194.07 background grey F [A58] VA[A58] P [A58] P [A58] P [A58]

342-U1404B-24H-1-W 85/85-SED 203.05 203.05 F [A58] VA[A58] F [A58] clay [Leg339] clay nannofossil ooze 342-U1404B-24H-2-W 85/85-SED 204.55 204.55 F [A58] VA[A58] nannofossil ooze [Leg339]

71 Site U1404 core descriptions Smear slides

Top Bottom Depth Depth Description of where smear Complete lithology abundance (name) (name) abundance (name) abundance (name) fragments abundance (name) abundance (name) (name) (name) (name) (name) abundance (name) abundance [%] (name) abundance (name) abundance (name) abundance (name) (name) abundance (name) abundance (name) (name) pyx, amph abundance (name) (name) (name) Sand texture [%] Silt texture [%] Clay texture [%] Lithic grains abundance Quartz abundance Calcite, allogenic Glass abundance Zeolite - phillipsite, Chlorite abundance Clay minerals abundance (name) Feldspar abundance Mica - biotite, musc Ferromagnesian - ol, Heavy minerals Zircon abundance Opaques abundance Oxide abundance Clay minerals, Glauconite abundance Dolomite, authigenic Sulfides, authigenic Pyrite, authigenic Calcite, authigenic Calcareous nannofossils Benthic foraminifers Planktonic foraminifers Foraminifers abundance Planktonic foraminifers Ostracods abundance Diatoms abundance Radiolarians abundance Silicoflagellate, ebridian, Pollen and spores Other microfossils Echinoderm fragments Biosiliceous fossil Sponge spicule Fish scales abundance Fish teeth abundance Organic matter Wood fragments (name) fragments abundance (name) (name) abundance (name) (name) clinoptilolite abundance (name) actiniscidian abundance abundance (name) authigenic abundance (name) abundance (name) (name) abundance (name) (name) abundance (name) Sample [m] [m] slide taken (name) Prefix Principal lithology Suffix name nannofossil ooze nannofossil ooze 342-U1404B-24H-4-W 85/85-SED 207.55 207.55 F [A58] C [A58] P [A58] P [A58] VA[A58] with clay [Leg339] [Leg339] with clay nannofossil ooze clayey nannofossil 342-U1404B-24H-5-W 40/40-SED 208.5 208.5 C [A58] A [A58] P [A58] P [A58] VA[A58] clayey [Leg339] [Leg339] ooze with nannofossils clay with 342-U1404B-25H-1-W 57/57-SED 209.27 209.27 C [A58] VA[A58] F [A58] P [A58] A [A58] clay [Leg339] [Leg339] nannofossils 342-U1404B-25H-2-W 100/100-SED 211.2 211.2 C [A58] VA[A58] F [A58] F [A58] clay [Leg339] clay

342-U1404B-25H-3-W 90/90-SED 212.6 212.6 C [A58] VA[A58] P [A58] P [A58] clay [Leg339] clay

342-U1404B-25H-5-W 60/60-SED 214.82 214.82 C [A58] VA[A58] P [A58] F [A58] P [A58] P [A58] clay [Leg339] clay

342-U1404B-26H-1-W 90/90-SED 216.1 216.1 C [A58] VA[A58] F [A58] P [A58] P [A58] P [A58] clay [Leg339] clay with nannofossils clay with 342-U1404B-26H-3-W 119/119-SED 219.39 219.39 C [A58] VA[A58] P [A58] P [A58] P [A58] A [A58] clay [Leg339] [Leg339] nannofossils 342-U1404B-26H-4-A 22/22-SED 219.92 219.92 P [A58] VA[A58] P [A58] P [A58] P [A58] P [A58] F [A58]

342-U1404B-26H-6-W 50/50-SED 222.71 222.71 C [A58] VA[A58] P [A58] P [A58] clay [Leg339] clay

342-U1404B-27H-1-A 50/50-SED 223.8 223.8 P [A58] VA[A58] P [A58] P [A58] F [A58] P [A58] F [A58]

342-U1404B-27H-4-A 75/75-SED 226.73 226.73 P [A58] VA[A58] P [A58] P [A58] P [A58]

72 Site U1404 core descriptions Smear slides

Top Bottom Depth Depth Description of where smear Complete lithology abundance (name) (name) abundance (name) abundance (name) fragments abundance (name) abundance (name) (name) (name) (name) (name) abundance (name) abundance [%] (name) abundance (name) abundance (name) abundance (name) (name) abundance (name) abundance (name) (name) pyx, amph abundance (name) (name) (name) Sand texture [%] Silt texture [%] Clay texture [%] Lithic grains abundance Quartz abundance Calcite, allogenic Glass abundance Zeolite - phillipsite, Chlorite abundance Clay minerals abundance (name) Feldspar abundance Mica - biotite, musc Ferromagnesian - ol, Heavy minerals Zircon abundance Opaques abundance Oxide abundance Clay minerals, Glauconite abundance Dolomite, authigenic Sulfides, authigenic Pyrite, authigenic Calcite, authigenic Calcareous nannofossils Benthic foraminifers Planktonic foraminifers Foraminifers abundance Planktonic foraminifers Ostracods abundance Diatoms abundance Radiolarians abundance Silicoflagellate, ebridian, Pollen and spores Other microfossils Echinoderm fragments Biosiliceous fossil Sponge spicule Fish scales abundance Fish teeth abundance Organic matter Wood fragments (name) fragments abundance (name) (name) abundance (name) (name) clinoptilolite abundance (name) actiniscidian abundance abundance (name) authigenic abundance (name) abundance (name) (name) abundance (name) (name) abundance (name) Sample [m] [m] slide taken (name) Prefix Principal lithology Suffix name 342-U1404C-2H-2-A 81/81-SED 18.31 18.31 P [A58] VA[A58] P [A58] P [A58] C [A58] C [A58] F [A58] F [A58]

342-U1404C-2H-4-A 88/88-SED 21.38 21.38 P [A58] C [A58] P [A58] A [A58] A [A58] F [A58] F [A58] biosiliceous 342-U1404C-3H-3-W 60/60-SED 29.1 29.1 F [A58] VA[A58] C [A58] A [A58] clay [Leg339] biosiliceous clay [Leg339]