GOVERNMENT OF NEWFOUNDLAND AND LABRADOR
Department of Natural Resources
Geological Survey
OIII OIII 58 25 04 58 12 53 OIII OIII Mapping: 49 09 03 49 09 12 SYMBOLS LEGEND Field and laboratory studies were completed by C. Buchanan, E. Burden and T. Calon South Head
400000 between 2000 and 2004. 410000 100 Geological contact (approximate, assumed) ...... IGNEOUS ROCKS OF THE BAY OF ISLANDS OPHIOLITE COMPLEX mC:Lit (after Williams and Caywood, 1989) Acknowledgments: Trumpet Structural contact of indeterminate nature Cove 200 White Field assistance was ably provided by S. Strowbridge, J. Young, G. Feltham, M. Putt, 300 between igneous and sedimentary rocks ...... Pillow basalt, volvanic breccia, minor jasper and clastic Point eO:Bv and A. Cocker; laboratory assistance for palynomorph biostratigrphy comes from H. Fault (defined, approximate, assumed) ...... sedimentary rocks Gillespie and L. Normore. Cartography and map production are by TonyPaltanavage of 20 mC:Lv bbbb the Cartographic Unit of the Newfoundland and Labrador Department of Natural BAYOF ISLANDS Thrust fault, assumed ...... eO:Bid Altered mafic dykes and brecciated dykes, local gabbro screens Resources. Parker Beach Unconformity ......
20 b b #
eO:Eb 100 Layered to massive gabbro, diorite, and minor trondhjemite.
b b b Anticline ...... eO:Big
Recommended Citation: Devil b mC:Lit b 400 Abundant dykes
Head b
b Antiformal axial trace ...... b mC:Lit Burden, E., Calon, T, and Buchanan, C., 2006: Geology of part of the Humber Arm 200 200 200
b
b Serpentinized harzburgite, dunite, pyroxenite, and lherzolite Allochthon, Lark Harbour - Serpentine Lake area (NTS 12G/1, 12G/2, 12B/15, 12B/16), mC:Lv b eO:Biu b Syncline ......
b Outer Shag (Black)
b #
western Newfoundland. Government of Newfoundlandand Labrador Department of b b Rock eC:B
b mC:Lig Puffin Islands Synformal axial trace ......
Island b Natural Resources, Geological Survey,Map 2006-03, Open File NFLD 2926. b eC:B & Metamorphic aureole
Cove b eO:Bs b
b MURRAY F minor fold axis ...... 300
b b b b Miranda b 200 b
b Cove b 300
400 bm
b Bedding (upright, unknown, overturned, vertical) ...... 20 b The hat CO:M Mount Barren Complex Digital NTS base maps (12B/15, 12B/16, and 12G/1) used for this Fleming eC:B b " b map are available from Surveys and Mapping Branch, Natural Bottle 300 m Point # Fault (high angle, folded thrust, thrust) ...... b
b mC:Lv
b Cove m
400
Resources, Ottawa, Canada. Crow b b IGNEOUS ROCKS OF THE LITTLE PORT COMPLEX Bara b 100 S cleavage ...... Little Port Cove b mmm 100
Point b MOUNTAINS 0 b (after Williams and Caywood, 1989) Head Little Port 10010 m
b
OI mC:Lv b Outcrop ...... b m
20 b Port n
The 2005 Magnetic North bearing is 20 44 West of Grid North; mC:Lv m !" Pillow basalt with sheeted dykes, and locally volcanic breccia R h b m mC:Lv OI 100 m Tortoise Float ...... j U &#
bb m b
Grid North is 1 01 West of True North for centre of map. Little m O Point 5440000 m Lark Sleep 20 20
20 j m200 eC:B 5440000
m b B Island m m b b Port b m b CO:NC R j Harbour 20
!& A 100 b j b b
b mC:Lid Sheeted to brecciated altered mafic dykes j H eC:B 200 mC:Lv 200 WOODS b Elevations are in metres above sea level. Contour interval is 20 b j b eC:B Corbett TORTOISE b 20
b b Cove Woods Island mC:Lv Brook Low b
m, except for the map area 12B/15 where the interval varies but is b Point Point MOUNTAIN
b K eC:B mC:Lit 20 Harbour b R b E:F Massive to foliated quartz diorite and trondhjemite
approximately 20 m. A mC:Lit b
b L b
mC:Lv Inner ! ISLAND b eC:B b #"
20 20
20 b
b Harbour CO:NC
b b eC:B b Universal Transverse Mercator (UTM) Grid Zone 21. b eC:B b
b mC:Lig Massive and foliated gabbro
b #% CO:NC
mC:Lv b b eC:B !&
# !
20 b Wild (Caplin) b North American Datum 1927. Cove CO:NC !$ &% cO:E mC:Lv 100 200 "" STRATIGRAPHY OF THE HUMBER ARM SUPERGROUP 200 LITTLE # "# !# & eC:B cO:E 100 & NORTHERN HEAD GROUP Copies of this map may be obtained from the Geoscience 100 MOUNTAIN CO:NC 300 GREAT $! 100 "& ! mC:Lit cO:E Publicationsand Information Section, Geological Survey, CO:NC # MOUNTAIN eC:B " O:NM Middle Arm Point Formation mC:Lit 300 $" %! # Department of Natural Resources, Government of Newfoundland $' eC:B % eC:B and Labrador, P.O. Box 8700, St. John’s, NL, Canada, A1B 4J6. ARBOUR &# HARBOURH $& [http:/www.geosurv.gov.nf.ca]. Seal Island %# CO:NC Cooks Brook Formation 400 &! mO:m
20 200 mC:Lig Department: http:www.gov.nl.ca/mines&en/ VIRGIN 200 CURLING GROUP Geological Survey: http:www.gov.nl.ca/mines&en/geosurvey/ MOUNTAINmC:Lit 20 Sword Point Governors % & %' eC:CI Irishtown Formation (shale member) %! Email: [email protected] eC:B #! 200 400 mC:Lv
Island & # %# eC:B
" $! n
n b n
n
n
20 b
n Irishtown Formation (sandstone member) n eC:CIs Authors’ Address: b b 200 n
300 YORK "#
York !! 100 b $&
C. Buchanan, E. Burden and T. Calon & 300 b
b && & b
Harbour100 20 &' b
b % ! %$
Department of Earth Sciences, b !% &# %& eC:B?
b UNDEFINED ASSOCIATION
b #" !% mO:GA Frenchmans b
b
b
Memorial University of Newfoundland, eC:B b 100 !" & !" Head
b b 20
100 HUMBER ARM b
n & !% $ $# #! b &#
b
b " 20 eO:E b 200 %# eC:B
St. John’s, NL, Canada, A1B 3X5. b 200 Blow Me Down Brook Formation
400 $! ' $ 600 c CO:NC
b
eC:B $ b b
Bluff b ! 20 !# b b !& c
20 !# b # ' b
Head b
20 200 eO:Big c eC:B CO:NC Frenchman’s b b 300 100 FOX ISLAND GROUP
& b 500 b c %
Frenchman’s b Cove 100 b eO:E
! 200 '
b
mC:Lig c !# b
mC:Lit BroomsBottom b Coveb 20 b
20 Cove c eO:E E:F Fox Island Group (undifferentiated)
b 100 b b 500 % c
eO:Big eO:Bid # 100 b $
c 100 b b # 300 200 eO:Bv eC:B CO:NC
BLOW b !&
c b b
300 #&
b
c b O:NM mO:m Mé lange (sheared shale matrix with exotic igneous blocks) b $&
100 "&
400
b n %# # c b 100 g
b
200 n mO:GA b 200 500 eO:Biu #$
100 b c b
"# n b b b $ 300 % 100
b 500 b Zone of intensely imbricated, broken formations (undifferentiated)
c mO:b n b b b O:NM b
300 b n b n eC:B c CO:NC
#$ eC:B b ! b
$ E:F b
eC:B b n Lower b ME 100 n 300 b c
b $ N eO:Bid n
400 eO:E Beach PARAUTOCHTHONOUS UNITS
b n N b c
n b
b N 200
n b %# c
n % b GOOSE TICKLE GROUP
N 500
b eO:Big 400
n b 400 DOWN c N ##
600 n b
b 100 N
$ n b
c
400 400
b b 60° 58° 56° 54° 52°
N 200 mO:GA American Tickle Formation
b 20 n
20 500 e b c N b
b Labrador
k
200
n b N 200
"! a eC:B c eO:E
b
L b
100 N BROOK 200
400 b
b
c 12P N 2M b
b Eagle Island Formation
St. eO:E
eC:B b
N NEWFOUNDLAND b b E:F
mC:Lig 200 b
500 g b Anthony
300 300 o b N 300 D 500
390000
Mad b ° 050 100 150 °
b m 51 51 b O:NM
Wild Cove b 200
N
b
400 m
b km
b TABLE HEAD AND ST. GEORGE GROUPS White m
b 300 b
N 300 b b
Rocks m
b CO:NC
eO:Bv b
b N m 100 E:F b Pond
b
b
20 m
CO:NC b
500 12I 2L
b N b
b
"& b m eO:Bid b m O:S/mO:T Table Head and St. George Groups (undifferentiated) 300 b
b
N 400 b m
b eO:Big b m b
400 b °
b °
Riley’s 20 20 N 50 50
b Brook m
300 b b
b
%% b m
b N b m
b eC:B 100
m b GEOLOGY OF THE SPRUCE HILLS ANTIFORM b b
20 b N
m CO:NC 20 m
b m m b
b b 12G 2F
b N 12H 2E (after Knight and Boyce, 2002)
5430000 100 300 5430000 m m
m b Deer
b b
m 600 Lake 200 N 400 500
m
m b
500 200 m
400 b 49° Gander 49° TABLE HEAD GROUP N 200 eC:B
200 m Corner
eC:B b Grand
N 500 Brook eO:Bid m Falls
300 b mO:TP Table Point Formation Bear 300 N
mC:Lig m 12B 2C mC:Lv b 12A 2D Head StephenvilleStephenville
N 400400 300 m
mC:Lig 200 b
b N ° ° m 48 48
500 b St. mO:TPs Spring Inlet Member
b N Port aux
eO:Big 500 m eO:Big 400 b Basques John's
mC:Lv 300
b N m J
mC:Lig 600 1N b eC:B N 11O 1M
m 11P
200 500 ST. GEORGE GROUP 107 b N
100 m
500 47° 47° b
N 600
100 m O:SA Aguathuna Formation
b N 400
mO:GA m
b 200 700
N 11I 1K m 1L
400 eC:B
100 b b
N eO:Biu n 200 m
mO:GA o 58° 56° 54°
b eO:SC Catoche Formation
200
b N n b
15 600 m
700
198 b N
500 b b
n 07 300 m
1071 b 600 INDEX MAP
0 N b b
300
n
30030 b
100 600 m
mC:Lid b b Costa Bay Member
N eO:SCc b
n b
m
b E:F b
200 b 600 N 500
b 300 b
305 300
Rileys n
b m b b b
b
100 N 400
b
b
n b
b mC:Lig b m
b E:F N
b Round
b b n m N
b
b
b Hill
n
m
"# N
Clarkes b
b
b N
b b n m
b
b b b N
b n
# m
600
b eO:Biu 600 eO:Bid 600
305 b
b
n N b b b b
n N b b m b b
b b
n b
b m
n N b
b b
b mO:GA #
mO:GA n v b N " m
b
n b 600 b
eO:Bs b b
b BrookN DESCRIPTIVE NOTES
n v m
b 600
b b n
b b N m
Coal River b
198 600 300 m
b n v b
b b N b n
m
Head "& 700 b
100 b Brook
v b 500 m n N b
b Goose Tickle Group b m
n n
600
500 b
m
n v N
b b 300 b n m "
b
n 700 b
n 200
v m
b " N
b b
m n 200
n b n American Tickle Formation
b
CO:NC v eO:Big m
b N n m
107 n b
n 600 b
100 n 600 400 v b m
n # b N m
b # n n
n o b n 400
v m
mO:GA g mO:GA Massive, graded grey-green siltstone and mudstone in beds up to about 1 m thick, interbedded
600
m N n
n b b n
# b
"$ v m
! n b
m 500
n N eC:B with dark grey to black, laminated shale and siltstone in beds up to about 1 m thick.
n 600 b b b
"# n 300 500
eC:B m v n n
CO:NC m
# " N E:F b
n b
b n b
n 600 600
v m
m CO:NC n N b b n
n
15 n b n " 500 b
m m v b n n
b 400
$# N
n n b Eagle Island Formation n n b
m 500 b b b m
n v
n N 600 u b
b n mO:GA n eO:Bs u
b n 500 m b
b u n b eO:Bs m
! n v b b
Fish Head E:F N u b v
b n n u u
b 400 m n v
n b b b m b eO:E Light brown to pale green, poorly sorted, medium- to coarse-grained quartzose and arkosic
mO:GA 500 u k n v u u u u b
b N 500 v o
n b b b u E:Fm m
n u u
n u v o
b b b m b r
b E:F sandstone in ribbon-like beds up to about 2 m thick, interbedded with grey, black, and occasionally red
n
v N # v m B
n n m &# b
b n 500 u
b m
b eC:B b v
n v N
b shale and micaceous siltstone beds up to about 1 m thick. Sedimentary structures include, scoured bases, b b
n 400
m m n
b b b 500 v
b n 400 u b
b 500 b
b
v N E:F m #! n n
b v b m flutes, load structures, convolute bedding, dewatering structures, homogeneous beds, planar laminations,
b n n # 600
b N u b v m b b n
% b n v eO:Bid n
eC:B m 400
b n b
n 400 u b m Clarkes and cross-beds. Lenses of polylithic pebble conglomerate composed of granitic and shale clasts are b v N n
b v
n " O:NM n v 600 h Brookb
b E ! n 100 m
&' b N
n !
b h u m h
b b
! I n N b common at the base of some of the thicker sandstone beds. Shale beds are massive or laminated. m v c
T !# k
n b
b N n h b n m u
b P E b m
m a n 20 R b E b n v o
b N
n S 300 h r
600 b b Sandstone beds typically have some calcite cement and may also contain spherical concretions. Trace n u m "# b 300 b
m % o m b n B
b n eC:B v
20 b b h b b m 300
N 300 n r m b m m 600 m n fossils often occur on contacts between sandstone and shale. $& u
n eO:Big b b
b n 200 v 500
600 h b 30030 m
n !# b B
CO:NC m !& k
N m
m b b ! b n 0
v b b u b b m m n n b
b b 400 h
n m k m
m n
N m b b m 300 b
n bE:F n b v eO:Bs u b b b
mO:GA b 400 h
&# West m k m E:F m m n n
mO:GA n m
b b N u eC:B b E:F
% v b b
n b 400 b
n h m m k
m Northern Head Group
$# n 500 m u n
b N m
n n 15 m v b
m ! b h k b
m m u
n n O:NM n m
m b N
n m
v 500 h
n k b b
m b N 500m u#"
m
m n
n !# n
n b N 400 h b Middle Arm Point Formation
v mm m k n
m m u b
Red b 500 #$
n b v N 500 b
m n k n E:F Rushy 200 h #%
m b m m
% b u 300
m bb b k
CO:NC n v N b b
m h Pond
m b n m m b b u k ON:M Thick successions (> 10 m) of interbedded, dark grey to black (pyritiferous), green (partly
v N b b b m n m m 500 h ##
bb b m b n
E:F b k eO:Biu u b
300 n
m v dolomitic) and red shale, interbedded with minor chert, intraformational granule and pebble conglomerate,
m n Nb "# b o b 300
o m h eC:B n 200
E:F b v b b r m m O:NM b B b
N u n
m b n n
B v b b b $& grey calcarenite, yellow-weathering, silty, detrital dolostone, and rarely, thin beds of grey, fine- to medium- b 300 m
mm v b m h n
a v N 400 b
m n
5420000 r v b m u 5420000
" b r % b v h n b
e N m E:F O:NM n grained sandstone, in beds up to about 0.5 m thick. Coarser grained strata may be deposited as thin
m n n 100 b m
b b v 200 h u b
m eO:Big 400 c ' mm
m l 200 m h n b
m n b b eC:B N b u n b v E:F ribbons or rarely, as thick amalgamated beds separated by thin to thick shale. Sedimentary structures
m b m u m
n b G m h b
# 300 600 n %
m N b b m
O:NM b N O R n b v m n
b m 300 ueC:B m include, scoured bases, load structures, convolute bedding, homogeneous beds, planar laminations, and
b m h b
$ m
m n b n m b
b I b v N m 500 400 n m
O b m m mmb m
b V n b m u
m B k b b n
b roo b b m b cross-beds. Conglomerate beds are grain supported, and may be massive. Shale beds are massive or
v N b b b
b m U b b h
E:F E n E:F b m 400 n 300 b
b b b b
m T R v Simmsb m b b
n !# N n u b n b
b laminated. Trace fossils often occur on contacts between calcareous and dolomitic beds and shale.
b 200 m b m h
C n v N n b b n m
b b n b 0 b b b b 0 b " n b m u
Rope n v N "& 5005 E:F
h
R b bv n m 400 nb b m b b b m Rope n b b v N b s
100 500 b
100 n b b n b 300 m u t b
m eC:B n
O E:F h
Cove b
b
b n b v N n b m b hb
n b b E:F b g
$$ m m n b b b n
vN n b b m ## b i b
P b b b
b n b
n b b b m n 200 Cooks Brook Formation
m b v n b b b b CO:NC n E:F N eC:B b m b b
n b b n b b bb b b 600 b b % eC:Bb 200 " 200 b b K
m m
b N b $# eO:Bs n E:F
n b b n n b b
N b b b m eC:B n b b n b
b b eC:B m b
m N nCO:NC b n # b b n
m N b CO:NC Dark-grey to black (occasionally pyritiferous) and green (partly dolomitic) shale, in beds typically
b b b b
b b N n b b b b 200
N b b b b b n m m b b b
b N n # b b n
eC:B b b b b b b b
n NN b less than 0.1 m thick and less commonly up to about 10 m thick, interbedded with grey fine- to coarse- b m m b b 15 n b n n
"& bb b b
b b b
300 b b b b b n b n m 300 100 b eC:B 100 N b b b grained calcarenite and intraformational conglomerate up to about 5 m thick. Strata may be deposited as
b b b n n m
200 b b b
m Cove b b eC:B b n n b b b E:F
b b eO:Bs b n
m b b b n
b 100 b b m thin ribbon limestones and shale or as thick amalgamated limestone beds separated by thin to thick shale.
400 b b O:NM n n 100 eC:B
m 200 b b b n
b b b 500 400
n b b b n n n
m b b b m
n 500 n b n
400 200 n n n n n Sedimentary structures in calcarenite beds include, scoured bases, load structures, convolute bedding,
m $ n b b b n n n n b b
b
b eC:B 00
m E R P E b n
b n eC:B b b
S N b b n n 1001 m
b 500 T n b b n homogeneous beds, planar laminations, and cross-beds. Calcarenites are mostly indeterminate grains n b
n n n n n
bE:F m
n BudsPonds I b n E:F n n n n b n n
n N "& b c b
n n b n n with small numbers of oolites. Conglomerate beds are both clast and grain supported, and may be massive
b n $# m
400 500 E n n 400 n n 300 n
n n 200 n n b 100 b n b n n m
n 200 n or imbricated and graded. Shale beds are massive or laminated. Trace fossils often occur on contacts
n n eO:Bs n
E:F n m n n
!& b n b b b 300 n
#$ n n n b $#
n m b n
b 500 n between calcarenite and shale.
n n 300
n n n
b eO:Biu n 300
b 400 n n n n $ m &
b n
Brook b CO:NC n n n b
b 100 m
600 100 n # n m m m m m
b m
n b n m
b ## n 200
b m
300 n n eC:B m m m Curling Group
eC:B n m m m m
b m m n Cone n m
500 n n n n m m m m
m
eC:B CO:M b
b
n
400 5005 b
n Peak 0
0 100 m
% b
n O:NM
b 300
n 200 b b
m b
n 500 LAKE Irishtown Formation
O:NM m b
n b b 300 bb n
m
b 198
b NO OUTCROP
n b n CO:NC
eO:Bs b 200
100 m
$ b 500 b
n 503 eC:CI & eC:CIs Dark grey to black (rusty-weathering) shale in bedded successions up to tens of metres
n b b b b m
200 b
600
500
Molly Anne b 100 100 n 600
n m thick, interbedded with grey, pale grey to white weathering, pebbly, granular, very coarse- to fine-grained
n b b
Cove " 400 b 107 b
b eC:B 594
Molly n Mount m
305 305
n b
15 b graded, orthoquartzitic, micaceous and feldspathic sandstone and polymict conglomerate consisting of n 300 $$ & n Barren b O:S/mO:T m
n n 700 200 n b #&
n n
Ann b m individual beds that are typically up to 3 m thick and amalgamated beds formed as large, probably lensoid
eC:B CO:NC b
100
200 E:F b
" n n m
503 n n
n k
300 k 200
200 b
m n
!& n shaped units that may be tens of metres thick. Conglomerate clasts tend to be quartzoze; a significant b
n b b n
396 b
o
o m
n 300 n
n
$ n
b b b
n
b
b
eC:B b
500 300 n b
o b
700 b quantity of fossiliferous platform carbonate pebbles and cobbles can usually be found in conglomerate
m CO:NC b
n 503 Brook b n b
b
n Brook 100
n !&
b O:NM
r b b ## b b
m b b
n 100 b
n b n b eC:CI
b
400 200 b b eC:B
b beds. Sedimentary structures in sandstones include, scoured bases, load structures, homogeneous beds,
198 b #
n
B b b "& $&
m b b
b
n
n 400 b CO:NC
700 600 n b b eC:CI
b b b
b O:NM
! m b b
O:NM b
n planar laminations, cross-beds, and dewatering structures; shales may be laminated and bioturbated. 600 b eC:B b n n b 396 b 200
m b b
"# n b b b
b b
b b b b b
n b $ b 198 b n
n m b " CO:NC 20020 b Some sandstones contain intraformational clay chip breccias. In long sections, the lower part of the
mO:b v b
500 b b
b 0
b n
n b m b
b b #% b b b n b n
M v " b
E:F 300 b
305 400 b m $# CO:NC formation tends to contain more and thicker sandstone and conglomerate beds than the top of the
b b eC:B
b b n b b n b b
b b b 100 v b # b
n 100 b
!# b i m b b n CO:NC
b
n d
OIII 600 b b b b formation. The top of the formation may contain thin, fine-grained and silty calcarenite beds less than 0.1
b b
b
bm v % b
n 396 100 b d 300 b b
n b b
48 51 59 b l b
m b b b
n eO:Biu "#
b b
b e
b 5005 b b 100
b v b m thick.
00 b b eC:B b b 500 v % 200
m b
b b $
OIII $ b b
CO:M v
& b
b b 200
b
b
503 b n m v b O:NM b b b g v
b O:NM 58 33 01 b %
b % b m v
b
b b eC:CI b b n
b b b b v b
mO:GA g
v b 200 600 E:F m ## b
b b b b 400 700 !# v 300
b b b b
v & b
m n c b b s b b v
b v g
eO:Bs v E:F eO:E n g
m c Undefined Association
n g r CO:NC b
b B m O:NM eC:CI $ $&
m g j
b c b
b 503 500 b n 400 e b b 200 b v b g
v y
l m c n
l n b g
b ##
500 300 500 b eC:B " u c "# g j
v b m Pond 300 b b e
b m nn b v
Petleys b
v
c n g e b
b b e 600 g b b CO:NC g j eC:B Blow Me Down Brook Formation "# v m c $# m 300
390000
b " CO:NC h
b m b v
b g
v
c
b b n b g
v Hill g j b E:F ## 100 m m
W b g
n
400 m b v b m b b &# g
b b c j
b m g
b #& b m % eC:B Grey-green and tan-weathering, pebbly, granular, very coarse- to medium grained graded, arkosic b g
b eC:B 100 v n
m b b g
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Islands, western Newfoundland. Unpublished Ph.D. thesis, Memorial University of Newfoundland, b b
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St. John’s, Newfoundland and Labrador, 509 pages. 600 b b b
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b according to our own observations from more than 2,500 stations collected from traverses along the coast,
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n O:NM b Formation has been noted by other workers in the area (Schillereff, 1980; Quinn, 1985). Our own work
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Newfoundland. Unpublished B.Sc. Thesis, Memorial University of Newfoundland, St John’s, # b
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n O:SA b b mO:GA g eC:CI 300 b Newfoundland and Labrador, 87 pages. Schillereff, H.S. b
eO:SC Pond suite of rift volcanics interbedded with and, perhaps also, underlying arkosic strata deposited as turbidites
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mO:TPsb b 1980: Relationship among rock groups within and beneath the Humber Arm Allochthon at Fox Island b
300 in grabens. b b
Comeau, R.L. River, western Newfoundland. Unpublished M.Sc. Thesis, Memorial University of Newfoundland, 410000 b Inasmuch as strata from the Blow Me Down Brook Formation are mostly unfossiliferous sandstones 1972: Transported Slices of the Coastal Complex, Bay of Islands – Western Newfoundland. St John’s, Newfoundland and Labrador, 166 pages. "& Unpublished M.Sc. thesis, Memorial University of Newfoundland, St. John’s, Newfoundland and and conglomerates, shale samples commonly contain abundant and diverse acritarch assemblages of the Camp 5 Brook OIII Labrador, 105 pages. Strowbridge, S.L. 48 48 38 lower Cambrian Skiaggia sp. complex. Good to excellent preservation, and red to dark brown colouration 2001: Stratigraphy and structure of sedimentary rocks of the Humber Arm Supergroup, Little Port- indicate relatively shallow burial, near the bottom of the oil window (Palmer et al., 2001; Normore, 2001). Feltham, G.R. Lark Harbour area, Bay of Islands. Unpublished B.Sc. thesis, Memorial University of Newfoundland, OIII 2001: Stratigraphy and Structure of Mélange in the Humber Arm Allochthon at Bear Cove, western St. John’s, Newfoundland and Labrador, 90 pages. 58 09 41 The Curling Group is composed of the Summerside and Irishtown formations. Summerside strata, Newfoundland. Unpublished B.Sc. thesis, Memorial University of Newfoundland, St. John’s, thought to be laterally equivalent to the Blow Me Down Brook Formation (Quinn, 1985; Waldron et al., Newfoundland and Labrador, 72 pages. Waldron, J.W.F., Anderson, S.D., Cawood, P.A., Goodwin, L.B., Hall, J., Jamieson, R.A., Palmer, S.E., Map 2006-03 1998), are not exposed in this area. Stockmal, G.S., and Williams, P.F. Godfrey, S. 1998: Evolution of the Appalachian Laurentian margin: Lithoprobe results in western Newfoundland The Irishtown formation is crudely divided into a lower quartzose sandstone and conglomerate 1982: Rock Groups, Structural slices and deformation in the Humber Arm Allochthon at Serpentine Canadian Journal of Earth Sciences, Volume 35, pages 1271-1287. interval and an upper more shale dominated succession (Palmer et al., 2001). The thickness of the Lake, western Newfoundland. Unpublished M.Sc. thesis, Memorial University of Newfoundland, St. sandstone and shale is largely conjecture; faulting and folding have resulted in substantial tectonic John’s, Newfoundland and Labrador, 182 pages. Waldron, J.W.F.,Bradley, J.C., and Henry, A.D. GEOLOGY OF THE HUMBER ARM ALLOCHTHON, thickening. Shaly Irishtown strata may contain blackened carbonized debris, and sparse, poorly 2004: Preliminary geological map of part of the Humber Arm Allochthon west of Corner Brook, NF Note: preserved Cambrian acritarchs (Palmer et al., 2001). All Irishtown strata sampled for this work are outside Knight, I., and Boyce, W.D. (NTS 12A/13, 12B/16 & 12G1), Geological Survey of Canada, Open File 1905, Scale 1:50,000. Open File reports and maps issued by the Geological Survey Division of the 2002: Lower Paleozoic rocks of the northern closure of the North Brook Anticline and Spruce Ponds Newfoundland and Labrador Department of Natural Resources are made available for the oil window, and point to a different tectonostratigraphic burial history from the Blow Me Down Brook Waldron, J. W. F., and Palmer, S. E. LARK HARBOUR - SERPENTINE LAKE AREA, Klippe, Georges Lake (12B/16) and Harrys River (12B/9) map areas; collected thoughts and public use without being formally edited or peer reviewed. They are based upon strata. unconnected rocks. In Current Research. Newfoundland Department of Mines and Energy, 2000: Lithostratigraphy and structure of the Humber Arm Allochthon in the type area, Bay of Islands, Geological Survey, Report 2002-1, pages 121-134. Newfoundland. In Current Research, Newfoundland Department of Mines and Energy, Geological preliminary data and evaluation. Northern Head Group strata tend to be weak and readily deformed into complex and refolded Survey, Report 2000-1, pages 279-290. NEWFOUNDLAND recumbant folds, stacked thrusts and duplexes. So too, in many places east of the Lewis Hills Massif, Lindholm, R. M., and Casey, J. F. The purchaser agrees not to provide a digital reproduction or copy of this product to a rocks of the Northern Head Group are phacoidally cleaved. 1990: The distribution and possible biostratigraphic significance of the ichnogenus Oldhamia in the Williams, H. third party. Derivative products should acknowledge the source of the data. Palynology residues from Northern Head Group strata lying east of the Little Port Complex are shales of the Blow Me Down Brook Formation, western Newfoundland. Canadian Journal of Earth 1973: Bay of Islands map area, Newfoundland. Geological Survey of Canada, Paper 72-34, with Sciences, Volume 27, pages 1270-1287. Map 1355A. Scale 1:50 000 normally blackened organic detritus with sparse, poorly preserved Late Cambrian and Tremadoc Disclaimer: acritarchs. Northern Head Group rocks lying beneath, and west of, the Little Port Complex are much better Normore, L.S. Williams, H. 012345 The Geological Survey, a division of the Department of Natural Resources (the “authors preserved thrust panels containing light brown and yellow coloured acritarchs indicating strata in the oil 2001: Palynomorph biostratigraphy and correlation within the Humber Arm Allochthon, Bear Cove, 1985: Geology of the Stephenville Map Area, Newfoundland. Geological Survey of Canada, Map and publishers”), retains the sole right to the original data and information found in any window. Newfoundland. Unpublished B.Sc. thesis, Memorial University of Newfoundland, St. John’s, 1579A. product produced. The authors and publishers assume no legal liability or responsibility Goose Tickle Group strata can be difficult to identify in the field; the rocks can share many features in Newfoundland and Labrador, 83 pages. for any alterations, changes or misrepresentations made by third parties with respect to Williams, H. and Cawood, P.A. kilometres these products or the original data. Furthermore, the Geological Survey assumes no common with older strata. In some places, stratigraphic position and biostratigraphy are clear diagnostic Palmer, S.E., Burden, E. and Waldron, J.W.F. 1989: Geology, Humber Arm Allochthon, Newfoundland. Geological Survey of Canada, Map indicators (Botsford, 1988; Lindholm and Casey, 1990). Elsewhere, and where present, characteristic 2001: Stratigraphy of the Curling Group (Cambrian), Humber Arm Allochthon, Bay of Islands. In 1678A. liability with respect to digital reproductions or copies of original products or for derivative Current Research, Newfoundland Department of Mines and Energy, Geological Survey, Report products made by third parties. Please consult with the Geological Survey in order to detrital minerals and provenance determinations can be useful criteria for defining strata (Quinn, 1985; 2001-1, pages 105-112. ensure originality and correctness of data and/or products. 1992). When substantive mineralogy, lithostratigraphy, and biostratigraphy are lacking, tectonostratigraphic position becomes a key defining element for determining the Goose Tickle strata.