Geology of the Quatsino-Port Mcneill Area

Geology of the Quatsino-Port McNeill Area, Northern Vancouver Island G Nixon, J Hammack, V Koyanagi, G Payie, M Orchard, T Tozer, D Archibald, R Friedman, J Palfy, Fabrice Cordey

To cite this version:

G Nixon, J Hammack, V Koyanagi, G Payie, M Orchard, et al.. Geology of the Quatsino-Port McNeill Area, Northern Vancouver Island. 2006. hal-03275107

HAL Id: hal-03275107 https://hal.archives-ouvertes.fr/hal-03275107 Submitted on 30 Jun 2021

HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. BC Geological Survey GEOSCIENCE MAP 2006-2

92 93 94 95 96 97 98 99 600000E 01 02 03 04 05 06 07 08 09 610000E 11 12 13 14 15 16 17 18 19 620000E 21 22 23 24 25 26 27 28 29 630000E 31 32 33 34 35 36 37 38 39 640000E 41 24 24 Geology of the Quatsino-Port McNeill Area,

127° 36' 127° 24' 127° 12' uTrK 0 0 uTrK uTrK 3 Northern Vancouver Island

23 Georgie 23

Lake 200 NTS 92L/11, 12E

( D

( 2 ( H A R D Y ( !

! 2 ( 16 2 00

( ( ( D (( 26

( ! ( G.T. Nixon, J.L. Hammack, V.M. Koyanagi, G.J. Payie, J.W. Haggart, M.J. Orchard,

( 80 ! uTrK

28 33 31 43 ( 22 25 D ! 22 ( ( 40 ( uTrK ( uTrK 41 T. Tozer, D.A. Archibald, R.M. Friedman, J. Palfy and F. Cordey

22 uTrK 0 (

0 QUEEN 1 B A Y D ( (( ( Jenkinson

((( ( (

21 ( (( 26 ! 21 ! Cree ( k 7 uTrK GEOLOGY ( PORT 30 uTrK ( by

( HARDY uTrK

HARDY CHARLOTTE 5620000N 10 ! G.T. NIXON, J.L. HAMMACK, V.M. KOYANAGI, G.J. PAYIE (BC Geological Survey) !( ( 12 20 ! J.W. HAGGART (Geological Survey of Canada) 4 ( 00 uTrK uTrK 5620000N ( uTrK (

0 PALEONTOLOGY GEOCHRONOLOGY

( ( 10 uTrK

(

D uKN by by ! ( uTrK 19 er ( D 17 19 Riv 29 M.J. ORCHARD, T. TOZER (Geological Survey of Canada) D.A. ARCHIBALD (Queen's University) d( 28 uTrK ( 70 ( 0 ( ( 0 ( 10

30 (( (( uTrK STRAIT J. PALFY (Hungarian Natural History Museum) R.M. FRIEDMAN (The University of British Columbia) (

( ( (

( ( 172.6 (± 3.9)( Bi ( ( ( 50° 42'

0 69 ( ( ! ( 40 ( A ( ( 2 (( F. CORDEY (University of Lyon) ( d ( ( ( 176.0 (± 3.4) Hb ( te 153 ( ( ( 20 ua ( JIpo-di . ( ( (( 18 K ulq ( 70 157 (± 11) Pl ( 18

ains Ts A ( 45 ( ( ( Glenlion r ((

La ( ( e ( ( Thomas

25 ke v ( (

D 35 ( ( i

2 ( ( R FORT RUPERT Point 4

6 ( (( (( 02

2 5 ( Pluton (

(( ! ( ( ( ( ( ( Pluton (

(  © (

2 A ( ( ( D d

50° 42' © 31 d d298 ( 4

 ( ( A

(( 30 287 A ( (( (( 30 D

33 ( 76 (( ( ( B

17 ( D ( ( ( uTrK kilometres

45 (86 ! ( 75 ( 60 ( ( 17

( ! 2 D ( 2 6 297

( 21 ! ( ( 53 d 10 Scale 1:50 000

25 ( uTrKls ! ( uTrK !

34 48 © 34 n !

o 32 d uTrK ( ( 36 37 i 140 d ! l

( n (

e 45 44 268 20 l D TrJBu ! G

16 172 2 16

( 5 50 26 LAYERED ROCKS LAYERED ROCKS (Cont'd)

34 D ( r

KKAA ive

AA 2 IINNSS uTrQ ( R TERTIARY UPPER TRIASSIC SS oth D (

(( Dick Bo ( 14

uTrK ( 36 ( ! (( ( 15 Neogene VANCOUVER GROUP B 15 (( D 31 15 ( 30 ( ( ( e ALERT BAY VOLCANICS ( s ( t Carnian to (late) Early Norian (Quatsino - Port McNeill Area) 0 a FF 0 u FFAA 2 Basaltic to rhyolitic, aphanitic to porphyritic flows, flow domes and volcanic breccia; UU Q uKN TAv QUATSINO FORMATION LLTT 200 minor volcanic conglomerate, sandstone and debris-flow deposits

Medium to pale grey, thinly bedded to massive micritic limestone and locally bioclastic

14 uTrQ 30 14 limestone; minor silica replacements and chert nodules; rare laminated interbeds,

0 2 ( TrJBu 3 ( A (( ( ((( 0 ( UPPER CRETACEOUS oolitic layers and algal mats; locally fossiliferous.

(( uTrP 51 0 83

39 A

272

( NANAIMO GROUP EQUIVALENTS (IN PART)

d (( ( 1 d ! JIdi(( 0 ( ! ( uTrQ? D 0 40 2 ( ( 36 uKN Carnian ( 55 ( ( Campanian to ?Maastrichtian ( ( 13 ( TrJBvs WW ( AA 46 ( 13 KARMUTSEN FORMATION AA ((( ( NN ( ( Medium to coarse-grained arkosic to lithic wacke, pebble to cobble conglomerate,

( OO ( ( (

OOKK uTrK ( uKN siltstone and minor coal; locally fossiliferous.

KKAA ( 5 Aphanitic to plagioclase-phyric and locally plagioclase-megacrystic basaltic lava flows,

AA JIdi-qm JIdi uTrK uTrK ! ( ! ! uTrK

167.8 (± 8.2) Hb NN ( ( commonly amygdaloidal; predominantly subaerial flows in the upper part of the

AA ( 44 A ( ( ( ( ( ! ( ! (. 400 ( ( 38 ( MALCOLMMALCOLM ISLANDISLAND

166.9 (± 0.5) ( ( 74 ( 39 33 ( MALCOLMMALCOLM ISLANDISLAND succession; may include minor pillow lava, breccia and hyaloclastite. É 3 ( Quatse ( 66 ((A ( ( ( 00 ( ! ( ( (

12 ( JIdi-qm ( ( (41 ( ( QUEEN CHARLOTTE GROUP EQUIVALENTS (IN PART) ( A ( ( ( ( 12 ( A A ( 37 Trend of thin grey limestone beds and lenses intercalated with basalt (( ( ( ( ( ( ( ( Cenomanian or Early Turonian to ?Santonian uTrKls k Pluton ( 40 52 ((( K near the top of the succession. e ( 200 (( e e 0 ( ( o r d 10 ( ( g SUQUASH BLUMBERG FORMATION C Wanokana 209 ( h ( 100

61d (((( ( (

FF (( (( ( Massive to thinly bedded lithic to arkosic wacke with minor pebble to

11 AA uTrKls! ( 11 uKBsn UU !

( UULL d 286 ( cobble conglomerate.

LLTT ( (((d ( TT ( !

TT (( ( ( D

uTrQ (( d315 38 INTRUSIVE ROCKS a 00 50 d 31 ( 2 ( 317 B

n (( ( D Pluton ((( 200 A ( ( 40

a d ( d 5610000N

k (d 200 ( 67 d

o ( ( ( ( 85 ( SOINTULA Massive conglomerate with minor lenses of coarse-grained lithic wacke. ! ( ( 290 (

n ( ! (

a 34 uTrKls ( ( ((( d( ( ( uKBcg ( 4 d d TERTIARY (?Neogene)

( d d d d (( ( 44

W ( TrJBu ke uTrKls 24 ( 175 A( 87 ! ( La 316 159 318 113 ( ( (

( d (

tse d (( (© ( Medium grained quartz diorite possibly equivalent to Alert Bay 2 a d ©

24 Qu TrJBu 135 35 © ( (

5610000N Tiqdi

( ! ( 5 (

( ( ( 5 ( uTrK Volcanics (known only on Straggling Islands in Holberg Inlet).

( 30 2 ( ! ( Cenomanian to ?Turonian

35 45 20 ( (

55 ( 2

70 2 ! ( (

2 ( 24 ( 1 ! (  00 ! ( ! ( ( ( ( !

64 ( ( ( BROUGHTON STRAIT SHALE UNIT

58 !( ! ( 29 uTrQ 76 uKN

64 15 ( 43 ( 20 EARLY TO MIDDLE JURASSIC

( lmJLvs ( 20 ( ( ( ( ( ( ! ( ( B

09 A 40 ( ! 55 09 ! !

( ( ( ( 30 ( ( ( 5 Dark grey, calcareous to non-calcareous siltstone and impure limestone interbedded A lmJLvs ! 2 (  ! ( ( 6Ñ ® 2 28 ( R

( ( 28 ( uKus ISLAND PLUTONIC SUITE 15 ( ( © 6 i with subordinate wacke and minor pebble conglomerate. ( ! © 326

( ( 10 ( d v

( 60 55 323 ( e

( ! ©© r Medium to coarse-grained, equigranular granitoid rocks and porphyry; ( B 5 100 ( d 137 d 75 0 ( d ! A (

10 A 15 43 26 40 JI includes hornblende +/- biotite-bearing diorite (di),

( ( 100 ( ( A

( ( 17 LOWER CRETACEOUS plagioclase +/- hornblende porphyry (po), quartz 136 ! 08 ( lmJLm lmJLm 55 ek

( ! 87 33 08

( ( ( ( d ! e 10 monzonite/monzodiorite (qm) and granodiorite (gd).

( ( d A r uTrQ 0 TAv COAL HARBOUR GROUP !

( A ( C ( ( Frances Lake ( ( ( ( ! 99 (( (

35! ( (

lmJLm ( ( d ( TrJBu uKN ?Albian

d150 ( ( ( (( ( 87A TrJBu Washlawlis Haddington

( 71

20 21 ( ( ! Island 50° 36' ( ( lmJLvs ! A 18

mJPf1 ( d Upper sandstone facies: through cross-laminated lithic wacke intercalated with siltstone, ( ( ( 146 lKCsn

07 1 ( ( 2 Ñ ® 48 07 minor pebble conglomerate and rare coal.

( Ñ  3 ! Ñ  50 70 Apple Ñ( ( 1

166.2 (±0.7) ! lmJLv ( d 95 39 30 20

A IKCcg lmJLm? 7

Bay 10 14 ( 10 IKCcg !

!D ( ( JIpo 168.5 (±0.6) JIgd ( dd É ( É 2 Lower conglomerate facies: massive conglomerate with minor lenses of coarse-grained

mJPf1 ( IKCcg dd É lmJLvs PORT MCNEILL MAP SYMBOLS ( ! 168.5 (+0.3/-1.7) . 73 ( lKCcg

18 ( Coal ( 158 138

35 25 ( Rupert  lithic wacke.

50° 36' D ( 160d (

28 Harbour ( ( d 139 ( ( ( Harbour ! d C Geological contact, defined 2mJPf1 ! JIgd 06 Straggling Islands 32 ( 06

( ( ! IKCsn lKCcg 167.4 (±1.1) lmJLvs l

mJLv ( IKCsn d 218 ( ( JIpo u

lmJLv Tiqdi lmJLv ( 25 IKCsn Geological contact, approximate

! ( 167 (± 13) Hb x Late Valanginian to Barremian

! d lmJLv ( ! 62d Pluton 5 ! 28 e

HHOOLLBBEERRGG ( Stewart 160.0 (± 1.4) Kf w Geological contact, inferred EE GG 2 RRGG Point 50 d TAv e LONGARM FORMATION EQUIVALENTS !5 45 177 FFAAUULLTT 65 d

35 ( 24 273 High-angle fault, defined (block on downthrow side if known) ! Thinly bedded to massive sandstone, siltstone, mudstone, pebble conglomerate

05 HO IKCsn lmJLm? 05 lKL LBERG !43 and minor coal; locally fossiliferous. High-angle fault, approximate

Michelsen INLE uTrP d285 ! T 84 d TAv 5 W 200 uTrP? Point © RUPERT INLET au High-angle fault, inferred 34 Thorp ! kw 1

( 37 aa 00

! HH uKN Point ( uTrQ HHOOLLBBEERRGG s UPPER TRIASSIC (CARNIAN) TO MIDDLE JURASSIC (MID-BAJOCIAN) Unconformity, approximate ( ! Cluxewe ( © 6 FFAAUULLTT 347 04 uTrK ( © C UULLTT d BONANZA GROUP ( (( ( ! o Mtn 04 ( uTrK 50 e 300 Unconformity, inferred tk NNN NNN ( 50 w NNN Rhaetian or Hettangian to mid-Bajocian (Quatsino - Port McNeill Area) 27 ( au uTrP I I I I I I s I I I Limit of mapping MMM uTrQ R MMM ( MMM D ( LEMARE LAKE VOLCANICS (subdivided by lithotype) ( ( d i 54 100 PPP PPP ( PPP 40 v Bedding, inclined

173 Age designation: mJ, Middle Jurassic; lmJ, Lower and/or Middle Jurassic; D KKK e KKK ( KKK ! (( 63 ( 57 03 uTrQ d ( r I I I

I I I 03 lJ, Lower Jurassic; TrJ, uppermost Triassic - lowermost Jurassic

63 I I I 52 Hankin SSS SSS

D ( SSS Primary flow lamination in volcanic rocks, inclined ! C D D HHH

Point Ñ HHH Ñ 37 uTrK r HHH 22

5 © 4 uTrK e 4 e ! Welding, inclined

( 35 k uTrQ Undifferentiated basaltic to rhyolitic, predominantly subaerial lavas and pyroclastic rocks including >

( 282 42 344 ! 25 ! ( uTrK d L 64 0 4-5 4 d ash-flow and rare airfall tuffs and reworked equivalents, minor pillow lavas, breccia, hyaloclastite 0 ( ( uTrK

( uKBcg 4 5 d ( 4 ( Cleavage, fault-related, inclined

© Kenny Ñ ( and pyroclastic surge deposits, locally intercalated with marine to non-marine, volcanic 15E 02 uTrP? ( 34 Ñ© ( ( 02 42 ! Sorenson Point 4-5 ( 500 uTrQ (( ( conglomerate, sandstone, siltstone, mudstone, impure limestone and localized debris-flow deposits. Lineation (slickenfibres on fault plane) ( 00 ( Point uTrQ 2 D 2

JIdi 47 (

( ( (( (

! 40 ( ( 283 Lineation (slickenfibres on fault plane), horizontal

( 24 ! e uTrK 2 ( ! uTrQ uTrQ? d 4 Mount k uTrQ 2 ( ( d Mainly rhyolitic or dacitic to rhyolitic lavas and/or pyroclastic rocks, including flow and

Varney 55 (( ( 30 a ( ( (

( L ( 3 Lf

100 20 © 5 Bay 00 pyroclastic breccias, welded to non-welded crystal-lithic lapilli tuffs and rare airfall tuffs; Plunge of minor fold axis Byng !

44 4 38 A

! © ( 40 

01 ( s ! 35 76 01 may include thin interbedded sedimentary deposits.

( 32 !

y (( w 23 ( ( Minor fold with dip of axial plane 55 n o 28 ! ( uTrK

! (

o  ! ( l ( r TrJLm Hecate r Mainly basaltic to andesitic lava flows with minor intercalated volcaniclastic and 32 o ( ( ( 0 10 278 2 a 0 ! C d 0 Lm Dike, inclined, vertical 40 5600000N sedimentary lithologies similar to Lvs; locally includes minor pillow lava and breccia. ( uTrPv Cove 40 N A B

( ! ek

lKL ( ! ( 200 re 2 50 C F F F 141 F F F F F F ! O'Connor Lake Ñ Macrofossil locality (with indicated age) ( 327

A A A

A A A ( A A A ( lJVx ( ( ! d ( ( 100 d d Ke Mainly basaltic to andesitic volcanic breccia of epiclastic and pyroclastic origin, and

o U U U 40 U U U 1 Early Cretaceous ( ( g U U U ( 40 h Lv

5600000N ( variably reworked lithic-crystal tuff; locally fine-grained sedimentary interbeds. o ( L L L

L L L

uTrQ 1 L L L 2 Middle Jurassic (Aalenian) n 0 uTrPv ! 00 3 0 ( i 4-5 3 uTrK ( 0 T T T T T T ( ( ( 0 T T T 80 s R uKBcg ( ( t 35 iver Sara ( 3 Early Jurassic (Sinemurian) ( ( a

( Bergh ( ©( ! ( u 62 ((( ( (( 55 44 le Lake Interbedded volcaniclastic and sedimentary strata, includes lithic and crystal-lithic 4 Late Triassic (Late Norian)

( 6 ! ! b

( ( ( Q r ! a 99 (( Cove Ñ 111 99 Lvs ( Ñ Ohlsen M ( 4 lapilli tuffs and reworked equivalents, pyroclastic and epiclastic volcanic breccias, 5 Late Triassic (Early Norian) Leeson Quattische d 0

uKBcg Sherberg ( 45 ! uTrK 0 R ( Point uTrQ Point ! iv sandstone, siltstone, mudstone, impure limestone, and minor debris-flow and Islands ! 43 Island er 6 Late Triassic

QUATSINO Jesdal 60 ! uTrK phreatomagmatic deposits; may include rare lava flows. Islet 30 33 1 ( e Ñ GSC macrofossil locality (ages as above) Evenson v ! o C uTrK Point 319d Middle Jurassic (mid-Bajocian) 3 98 ( 98 © Conodont locality (with indicated age) ( ( ( a Pamphlet n uTrK i ( Pemberton Hills Rhyolite ( ( uTrQ Cove ( w 6 1 Late Triassic (Rhaetian) k 0 ( ( uTrQ o uTrQ 0 51 ( Cross K uTrP Alice JI Rhyolitic lavas and ash-flow tuffs with minor intercalated epiclastic deposits (subunit 1). 2 Late Triassic (Late Norian)

42 TrJLm 53 Island 321 uKus D 50 mJPf1 La 8 d 3 Late Triassic (Middle Norian) D ( (( ke ( 0 Ildstad (( ! 34 ( 6

( uTrQ ( ( 0 0 ( 47 0

97 Islands D( 0 97 4 Late Triassic (Early Norian) ISLANDISLAND 0 71 DRAKE ISLANDISLAND ( ! Atkins 0

! ! 82

( 66 uTrQ 1 uTrK Nimpkish 5 Late Triassic (Carnian - Late Carnian) > ! 8

45 1-3 uTrP uTrP ( 0 2 Hettangian (or possibly Rheatian to Sinemurian) (Quatsino - Port McNeill Area) 0 0 198.9 (±0.5) 352

É ! ( ( 26 ( 42 TAv 4 0 6 Late Triassic

lJLf ! 52 Ñ ! 20 Twin Peaks uTrK

! B ( d ( (

96 uTrQ !( 55 96

! Plagioclase-megacrystic basaltic to andesitic lavas locally intercalated with, and laterally 2 ! 22 ( !

42 07 08 09 610000E 11 12 13 14 15 16 17 18 19 620000E 21 22 23 24 25 26 27 28 29 630000E 31 32 33 34 35 36 37 38 39 640000E 41 lJVx ® Radiolaria locality (with indicated age)

73 ! 47 26D ( 17

B ( !

4 70 ! ! 13 Volcanics. 1 Early Jurassic (Sinemurian - Pliensbachian)  (( ! uTrPv?  ( ( ( ! ( (( 33 2 Late Triassic (Late Carnian - Middle Norian)

( Lakken 53 ( !50° 30' 67 62 ( ! ( (

50°30' Holloway 75 ( Norgar Point ( ( ( (

D ! B Rhaetian to Hettangian or ?Sinemurian (Quatsino - Port McNeill Area)

95 ! 90 Point Islet 22 ( ( 95 . Ar40/Ar39 mineral date (Ma, 2 sigma error); 60 15

 lKL !

( 14 ( 167 (± 6) Hb (! VOLCANICLASTIC-SEDIMENTARY UNIT Hb: hornblende; Kf: K-feldspar; Bi: biotite ! ( 10 ( (( BUCHHOLZ CHANNEL !79 30 ( É U-Pb zircon date (Ma, 2 sigma error);

! 22 Quatsino - Port McNeill Area Interbedded volcaniclastic and lesser sedimentary strata (predominantly submarine):

26 ( 167 (± 1.0) !

! ( Base Map Information Ross et al. (1996)

( ( ( Port Hardy TrJBvs buff to grey-green, thin to very thickly bedded, calcareous to non-calcareous, volcanic NN !

NN ( ( References 92L/11, 12E 94 e 40 ((! uKN 94

v EE breccia, lithic and feldspathic wacke, siltstone and impure limestone; lithic-crystal tuff, É U-Pb zircon date (Ma, 2 sigma error)

Kultus o N 6 Base map has been produced from digital TRIM (Terrain Resource Inventory Management) RR 0 ! C RR 0 200 (± 2) n S E 15 Jeletzky, J.A. (1976): Mesozoic and ?Tertiary rocks of Quatsino Sound, Vancouver Island, British Columbia; Geological Port McNeill lapilli tuff and reworked equivalents; and minor vitric tuff, pebbly sandstone, shale and a m OO 1:20 000 topographic database provided by the British Columbia Ministry of Environment, i ith R Cove l 40 22 Survey of Canada, Bulletin 242, 243 pages. u C UU 0 ! volcaniclastic debris-flow breccia. 10

J o O Lands and Parks. Port Alice d MINFILE locality (92L 10)

v TT ( 47 British e U 2 uTrQ

SS ! 0 Haggart, J.W. and Tipper, H.W. (1994): New results in Jura-Cretaceous stratigraphy, northern Vancouver Island, B 0 V

T OO 27 ! Outcrop examined 20 British Columbia; in Current Research 1994-E, Geological Survey of Canada, pages 59-66. a

93 S SS 93 N  n Campbell River Columbia Early Norian to Hettangian or Sinemurian (Quatsino - Port McNeill Area) SS 46! North American Datum (NAD) 1983. Universal Transverse Mercator Projection (Zone 9).  c O o ( Ross, K.V., Friedman, R.M., Dawson, K.M. and Leitch, C.H.B. (1996): U-Pb zircon ages of the Island Copper deposit intrusions, u Outcrop too small to show at map scale S N Elevation in metres above mean sea level. Contour interval 100m. v

72 Approximate mean magnetic M northern Vancouver Island, British Columbia; in Current Research 1996-A, Geological Survey of Canada, pages 111-117. PP e Undivided strata of the Parson Bay Formation and overlying volcaniclastic-sedimentary 1  PP r TrJBu Roads, paved K 00 declination 2005 for centre aa I lithologies in the basal part of the Bonanza Group in areas of sparse outcrop north of l s o Muller, J.E., Northcote, K.E. and Carlisle, D. (1974): Geology and mineral deposits of Alert Bay-Cape Scott map area, cici la o of map area: 19 degrees n Holberg Inlet and outside the limit of mapping. t Vancouver Island, British Columbia; Geological Survey of Canada, Paper 74-8. fff c 300 iii d Roads, dirt 92 h 92 35 minutes east decreasing cc l Vancouver i OO

m 33 Magnetic OO Port Alberni 0 annually 13 minutes per year For geology compiled outside the limit of mapping: m 0 ! cc (late) Early Norian to Rhaetian or ?Hettangian (Quatsino - Port McNeill Area) 5 cc Nanaimo Canada i ( Declination ee s ( Massey, N.W.D., McIntyre, D.G., Desjardins, P.J. and Cooney, R.T. (2005): Digital geology map of British Columbia: whole aa ( nn PARSON BAY FORMATION FF province; BC Ministry of Energy, Mines and Petroleum Resources, Geofile 2005-1. Geoscience Maps nn USA AA R Recommended Citation

UU 37 Medium grey to black, laminated to medium bedded impure limestone, calcareous i UU A Muller, J.E. and Roddick, J.A. (1983): Alert Bay - Cape Scott; Geological Survey of Canada, Map 1552A, scale 1:250 000. 91 v LL 91 Victoria e 0 uTrP 8 I LL 151 to non-calcareous mudstone, siltstone, and shale, locally intercalated with minor Data Compilation r 0 0 TT Nixon, G.T., Hammack, J.L., Koyanagi, V.M., Payie, G.J., Haggart, J.W., Orchard, M.J.,

6 0 8 N TT ( 2006-3

00 2006-2

L d 47 grey-green lithic wacke, feldspathic wacke, lithic, crystal and vitric tuff and reworked

E ( ! Tozer, T., Friedman, R.M., Archibald, D.A., Palfy, J. and Cordey, F. (2006): G.T. Nixon, K.A. Johnston and M.C. Kelman  equivalents and volcaniclastic breccia, and rare pebbly sandstone, conglomerate and 4 ( ( 00 127° 36' T Geology of the Quatsino - Port McNeill area, northern Vancouver Island; BC Ministry 90 Olympic debris-flow deposits; calcareous facies locally contain colonial coral horizons; organic-

( 55 ! of Energy, Mines and Petroleum Resources, Geoscience Map 2006-2. 2006-4 2006-1 rich facies comprise carbonaceous to graphitic shales, mudstone and limestone; 90 90 Peninsula 92 93 94 95 96 97 98 99 600000E 01 02 03 04 05 06 locally abundant fossils.

Volcaniclastic and volcanic lithologies: predominantly basaltic to andesitic epiclastic uTrPv waterlain breccias and tuffs, includes lithic lapilli tuff and tuff-breccia of phreatomagmatic origin; minor pillow lava and hyaloclastite; locally interbedded fine-grained volcaniclastic Digital Cartography: and sedimentary rocks.