200

600

400

400

100

200

30040050

0

500

400

300

100

300

400

300

200

200

300

200

300

400

100

100

100

900

800

700

700

80090

0

500

400300

200

100

100

200

300

200100

200

100

100

200

300

400

500

600

700

300

100200300

200

200

100

100

100

100

100

100200300

400

500

600700

800

900

1000

1100

300200

100

100

200300

100200

300400

500

600700

800900

100

TWIN PEAKS

AVTT VA

u K

Ku

Ku

Ku

Ku

Qu

ls

NuK

IJ di

u K

u K

u K

NuK

NuK

NuK

NuK

IJ di-qmz

IJ

JB f f

cgClK

u Kqdi-mzJI

lsu K

sPBJ

sPBJ

u Q

u Q

Ku

BJ gdIJ

lsu K

cgClK

cgClK

cgClKsnClK

snlKC snlKC

Ku Ku

lsu K

Qu

Qu

Qu

Quu K

u Q

u Q

u Q

u Q

u Q

u P?

u Q

u Q

au P

mi

Qu

Ku

u K

u K

u Ku K

u K

u K

u K

u K

u K

u K

Qu

u Q

u Q

u Q

Ku

J s

Js

u K

Ku

TAV

TAV

GEOSCIENCE MAP 2000 - 8

A-Pfm (Pl)Y

A-Pfmu K (Pl)Y

A-Pm fu K (Pl)Y

Ku m f AY

(Pl)YKu m f P (pi)

(Pl)Yf A-Pmu K

A-Pf (Pl)YmKu

(Pl)YA-fmu K P

AYKu m f

u Km (Pl)Yf A-P

YAfmu K

Ku m fAY

P- P(Pl)YKu m fAYfmu K (pi, pbr)

u K

P(Aug,Pl,Hb),JBmi(vsn,vsl,dbr,ftvx)

ltlxtbr,vbr

(Pl,Hb)YA-PfmiBJltlx(dbr,vbr)

AS

JB f f AS

AYSfm

uKBcg

Ku ls

PfmiBJ (Pl)Y

(Pl)YA-PJBmi f(ltl,ltlx,vsn,vbr)

A-P(Pl)Y,ltlu PV ltlx,vbr,csl,vsn,slsAY(mi f

u P A-P(Aug,Pl),fVmiltlx(Aug) (vsn,sls)

u Q

ltlxw(dbr)fBJ

lKL

J I diQu

Qu

YAfmu K

Ku m fAY

Ku m fA-P(Pl)Y

JIgd

ltlx (Aug,Pl),JB

?fmiBJ

u Km f A-P(Pl)

m f AY,Ku

AYu K fm

A)f(miVmiu P

A-P(Pl)S,fJB

u PVmi f A-P(Pl)

IJ

Ku m A-Pf (Pl)Y

Ku

sPBJ

BJ ltlxmi (Pl,Hb,Aug), vbr

tbr,vbr(Pl,Aug,Hb),

t-br,ltlxJB

(ltlx,t-br,vbr)PJBmi f (Pl,Aug,Hb) JBmi f A-P

ltlx,t-br,vbr,vsn(Pl,Hb,Aug)

sPBJ

MAHATTA CREEK 92L/5

)

Qu

cgBuK

usuK

cgBuK

ltlx,vbr,

ltl

(hbr)

pi,pbr

,pi

t-br,vsn

t-br,vbr,vsn,sls

VAT

sPBJ

P?u

J ltl,t-br,B f A-P(Pl)Smi

Pu a

u Q

Pu

Pu

PORTHARDY

PORT McNEILL

Coal Harbour

Cluxewe

Mountain

ISLAND COPPER

ThomasPoint

Suquash

MALCOLM ISLAND

Haddington

Island

Frances Lake

HankinPoint

KennyPoint

StewartPoint

Fort Rupert

BAYHARDY

RUPERT INLET

Nimpkish

Lake

O ' Connor Lake

SaraLake

Lake

Waukwaas

Creek

Washlaw

lis

Creek

Cluxewe

River

River

Keogh

Keogh

River

MarbleRiver

Varney Bay

Quatse

Rive

r

QUEEN

BROUGHTON STRAIT

Coetkwaus

Creek

Klootchlimmis

BUCHHOLZ

Julia

n Cov

e

Smith Cove

CHANNEL

Kultus Cove

Alice

57

61

58-60

60

61

62

63

67

70

95

99

111

113

135

136

137

138

139

140

141

146

150

153

158

159

160

172

173

175

177

209

218

268

272

273

278

282

283

285

286

287

290

297

298

315

316

317

318

319

321

323326

327

344

347

151

167.8 ± 8.2 Hb

176.0 ± 3.4 Hb172.6 ± 3.9 Bi

157 ± 11 Pl

167 ± 13 Hb160.0 ± 1.4 Kf

93

78

97

95

9

12

15

36

37

26

28

3233

34

35

3938

40,94

122

125

124

127

123

8-9

10-13

Kf

Lmt

Lmt

Lmt

198.9 (±0.5)

166.9 (± 0.5)

166.2 (±0.7)168.5 (±0.6)168.5 (+0.3/-1.7)

167.4 (±1.1)

146145

152154

65

36

66

82

90

102

109

113

232

80

55

50

52

57

76

8587

17

14

11

15

177

456

7

12

16

31

12 3

1920

112

104

106

110

46

48

162

165

169170

179

95

Stratigraphy

Least altered

Alkali metasomatized

Severely altered

Minor Intrusions

Island Plutonic Suite

Class

Classification

WHOLE - ROCK GEOCHEMISTRY LEGEND

Basalt andesite Andesite

Dacite/Rhyodacite/

Rhyolite

Alkali metasomatized

Severely altered

Major Intrusion Minor Intrusion

Alkali metasomatized

SiO (wt %) 53 572 53 I 57 63I 63I

Basaltic

Least altered

Least altered

lKL

uKN

m

V?

mi

PIT

IJ di-qmz

lsu K

sPBJ

sPBJaphanitic / fine-grained (<1mm)

lava flow

laminar flowage structures

ABBREVIATIONS AND NOMENCLATURE FOR

A compositional range is compounded (e.g. , mafic to intermediate)

Epiclastic* Pyroclastic Other**

VOLCANIC AND SEDIMENTARY ROCKS

where is composition, is lithology, and denotes other descriptors

f

m

mi

i

lxx l

pyroclastic brecciatuff-breccialapilli tufftuff

pillow lavapillow breccia

pbrt-brltt

f

pipibr

weldedw

vitriccrystallithic

porphyritic (1-5mm)

amygdaloidalvxl A

P

YS

hyaloclastiteh

brecciaconglomeratesandstonesiltstoneshale

limestone

brcgsnslsh

ls

Lithology:

Descriptors:

vt

l laharic

tuffaceousvolcanic

Prefixes:

Suffixes:

**

1

2

dc calcareous

debris flow

Composition:

listed below

where undivided

mafic (basaltic)intermediate (andesitic)felsic (rhyolitic-rhyodacitic-dacitic)

Volcaniclastic nomenclature after Cass and Wright (1988)

includes autoclastic and quench-fragmented products

pyroclastic or epiclastic (non-genetic)

3

volcanic and/or nonvolcanic constituents*mixed epiclastic/pyroclastic (tuffites) includes flow folds

megacrystic (>5mm<15mm)P

JB

JB

mudstonemd

s silty / sandya argillaceous

plagioclase

olivine

Pl

Olhigh-Ca clinopyroxeneAug

(includes flow breccia)

orthopyroxeneOpxhornblendeHb

21 3

parentheses denote minor lithologies(sn, vbr)

River

NEROUTSOS

INLET

Colo

nyLa

ke

Cove

u Q

u P

Qua

tsin

oNa

rrow

s

Michelsen

IslandsIldstad

Point

QuattischePointSherberg Point

PointEvenson

QUATSINO Islands IsletJesdal

IslandCross

PointLakken

IsletNorgar

Pamphlet

Holloway Point

DRAKE ISLAND

Island

Kok

wina

ByngMt.

CoveBergh

PointThorp

Leeson

PointSorenson

Ohlsen

Cov

e

AtkinsCove

Cove

HOLBERG INLET

STRAIT

CHARLOTTE

sPHBJ

BJ

Wan

okan

aCr

eek

(Pl),PfmiBJ dbr

BJ dbr BJ dbrIJ qdi

Hecate

Base Map Information:

Recommended Citation:

References (for geology compiled and modified both inside and outside the limit of mapping):

Roddick, J. A., and Muller, J. E. (1983): Geology Alert Bay - Cape Scott, British Columbia; Geological Survey of Canada, Map 1552A.

Massey, N. W. D., Desjardins, P. J. and Grunsky, E. C. (1994): Geological Compilation, Vancouver Island, British Columbia (92B,C,E,F,G,K,L; 102I); B.C. Ministry of Energy, Mines and Petroleum Resources, Open File 1994-6.

Base map has been produced from digital TRIM (Terrain Resource Inventory Management) 1:20 000 topographic database provided by the British Columbia Ministry of Environment, Lands and Parks.

North American Datum (NAD) 1983. Universal Transverse Mercator Projection (Zone 9). Elevation in metres above mean sea level.

Nixon, G. T., Hammack, J. L., Koyanagi, V. M., Payie, G. J., Haggart, J. W., Orchard, M. J., Tozer, T., Archibald, D. A., Friedman, R. M., Palfy, J. and Cordey, F. (2000): Geology of the Quatsino-Port McNeill Map Area, Northern Vancouver Island; B.C. Ministry of Energy and Mines, Geoscience Map 2000-6.

Digital Cartography: Mainly by J. L. Armitage.

Jeletzky, J. A. (1976): Mesozoic and ?Tertiary rocks of Quatsino Sound, Vancouver Island, British Columbia; Geological Survey of Canada, Bulletin 242, 243 pages.

Haggart, J. W. and Tipper, H. W. (1994): New results in Jura-Cretaceous stratigraphy, northern Vancouver Island, British Columbia; Geological Survey of Canada, Current Research 1994-E, pages 59-66.

5

Outcrop examined (control)

57

22

66

54

32

30

MAP SYMBOLSGeological contact:

High-angle fault (ball on downthrown side if known)

Unconformity:

Bedding (facing known: inclined, vertical)

Bedding (facing unknown: inclined)

Primary flowage structures in volcanic rocks (inclined, welding in tuff)

Stylolite orientation (bedding parallel, non-parallel)

Dike (inclined, vertical,Tertiary)

Minor fault (inclined, vertical, with plunge and trend of slickenside striations)

Plunge and trend of minor fold axes ('M', 'Z', vergence unknown)

Macrofossil locality (Tables 3, 4)

Limit of mapping

T30

definedapproximateinferred

defined

inferredapproximate

(Lmt, laumontite; Kf, potassium feldspar; Table 10)

Lithogeochemical assay locality (Table 2)

Ar - Ar mineral date (Ma ± 2 ; Hb, hornblende; Bi, biotite;

facies boundary, inferred

U-Pb Zircon date (Ma ± 2 ; Table 8) 170±2

40 39

inferred

hidden

approximate

hidden

5

MINFILE locality (092L 010; Table 1) 10

53

Whole-rock geochemistry locality (Tables 11, 13)(see whole-rock geochemistry legend)

277

Conodont locality (Tables 5, 6) 8

Radiolarian locality (Table 7)

Pl, plagioclase; Kf, potassium feldspar; Table 9)

X-ray diffraction mineral identification

RUPERT PLUTONStraggling

Islands

AppleBay

Quatse Lake

JenkinsonCreek

QUATSE

PLUTON

WANOKANABATHOLITH

KainsLake

Dick Booth

Creek

GLENLIONPLUTON

Glenlio

n

River

Tsulquate

River

GeorgieLake

14

64

4533

25

34

30

25

10

35

16

3024

0

37

35

33

50

12 17

78

20 12

10

70

64

35

62

45

22

20

1530

42

55

23 40

50

35

47

45

35

042

0

0

35

55

25

63

33

50

5050

55

45

71

30

20

34

30

36

31

15

60

27

76

80

7060

10 32

28

41

26

30

43

37

1615

22

0512

22

25

05

85 2043

15

20

35

2735

25

20

69

30

65

40

55

82

60

62

4326

3387

17

28

75 40

45

52

46

39

36

4445

056

40

45

70

43

55

60

48

20

35

28

3215

32 22

35

43

29

5510

15

36

35 24

50

40

4471

44

56

30

17

12

52

66

33

38

1830

65

40

87

40 4438

38

37

57

10

39

55

20

41

33

14

85

07

53

36

43

70

50

4748

37

57

6442

73

5225

53

7557

51 52

4571

62

67

67

45

55 69

40

3244

20

42

55

34

44

80

40

TT

T T

T

5

78

50

73

60

22

25

3028

31

73

10

65

54

55

3552

45

3075

4850

54 72

2835

72

74

2631

26

70

90

77

29

70

83

70 6175

63

57

76

34

50

72

8875

85

84

73

7780

6574

73

35

34

72

45

40

5380

70

78

44

49

4839

47

73

83

6844

6013

370

5565

30

52

85

65

70

76

76

48

80

8750

25

24

47

13

42

34 1315

1525

32

26

27

30

33

33

4755

38

20

37

15

15

40Primary mineral foliation in plutonic rocks (inclined)70

1015

Kilometres

1 0

SCALE 1 : 50 000

NTS 92L/11, 12E

Geological Survey Branch

1 2 3 4

Ministry of Energy and MinesEnergy and Minerals Division

PALEONTOLOGYby

M. J. ORCHARD and T. TOZER (Geological Survey of Canada)J. PALFY (Hungarian Natural History Museum)

F. CORDEY (University of Lyon)

GEOCHRONOLOGYby

D. A. ARCHIBALD (Queen's University)R. M. FRIEDMAN (The University of British Columbia)

GEOLOGYby

G. T. NIXON, J. L. HAMMACK, V. M. KOYANAGI and G. J. PAYIE (B. C. Geological Survey) J. W. HAGGART (Geological Survey of Canada)

G. T. NIXON, J. L. HAMMACK, V. M. KOYANAGI, G. J. PAYIE, J. W. HAGGART,M. J. ORCHARD, T. TOZER, D. A. ARCHIBALD, R. M. FRIEDMAN, J. PALFY and F. CORDEY

GEOSCIENCE MAP 2000 - 6

S

GE

OLO

G I C A L

BR

I T

I S H C O L

U RV

EY

U M

BI A

GEOLOGY OF THE QUATSINO-PORT McNEILL MAP AREA,NORTHERN VANCOUVER ISLAND

?fmiBJ

8

Kf

167.8 ± 8.2 Hb

GRID NORTH

MAGNETIC NORTHTRUE NORTH

1° 09'20° 53'

Approximate mean magnetic declination 2000 for the centre of the map area: 20° 53'E decreasing annually 9.8' to 2005

LOCATION MAP

Victoria

Vancouver

Nanaimo

Port Alberni

Campbell River

Port Alice

Island Copper

Port Hardy

92L/11, 12E

Vancouver Island

OlympicPeninsula

BritishColumbia

Quatsino-Port McNeill Map Area

Pacific OceanCanada

USAGeoscience Maps

2000-5 2000-6

2000-8 2000-7

LAYERED ROCKS

LONGARM FORMATION EQUIVALENTS

LATE VALANGINIAN TO BARREMIAN

HETTANGIAN (?RHAETIAN in part) TO MID-BAJOCIAN

CARNIAN

ALERT BAY VOLCANICS

UPPER TRIASSIC

TERTIARY

LOWER CRETACEOUS

UPPER TRIASSIC TO MIDDLE JURASSIC

QUATSINO FORMATION

PARSON BAY FORMATION

KARMUTSEN FORMATION

UPPER CRETACEOUS

NANAIMO GROUP EQUIVALENTS

"BONANZA VOLCANICS"

BONANZA GROUP

VANCOUVER GROUP

(LATE) LOWER NORIAN TO RHAETIAN (south of Holberg-Rupert inlets)

CARNIAN TO (LATE) LOWER NORIAN (south of Holberg-Rupert inlets)

INTRUSIVE ROCKS

EARLY TO MIDDLE JURASSIC

ISLAND PLUTONIC SUITE

CAMPANIAN TO ?MAASTRICHTIAN

JBf JB if

NuK

LlK

u P

u P

Vu P

u Q

u K

JI

a

JsUndivided strata of the Parson Bay Formation and overlying unnamed sedimentary and volcaniclastic rocks of the Bonanza Group outside the limit of mapping.

Undivided thin to medium bedded impure limestone, calcareous to non-calcareous mudstone, siltstone, and shale intercalated with fine-grained volcaniclastic rocks including tuff and debris-flow breccia.

Arenaceous facies: grey-green, calcareous to non-calcareous volcanic sandstone and siltstone, mudstone and shale interbedded with variable proportions of impure limestone. Locally contains vitric, lithic and crystal tuff or reworked equivalents, volcaniclastic debris-flow breccia, and minor pebbly sandstone and conglomerate.

T

T

T

T

T

T

NEOGENE

Volcanic rocks: predominantly basaltic lithic tuff and tuff-breccia of phreatomagmatic origin, lesser pillow lava, hyaloclastite, and interbedded water-washed equivalents (see table of abbreviations and nomenclature).

AVT

Undivided siliciclastic facies of the Parson Bay Formation and conformably overlying unnamed marine siliciclastic strata of the Bonanza Group: black to greenish grey, predominantly non-calcareous, very thin to medium bedded siltstone, sandstone, mudstone and shale with minor intercalated tuff and tuffaceous breccia and rare impure liimestone.

JBmiPlagioclase-megacrystic basaltic lavas locally intercalated with, and laterally equivalent to, aphanitic flows near the base of the "Bonanza Volcanics".

PBsTJ

f P

CARNIAN(?) TO HETTANGIAN OR SINEMURIAN

Medium to coarse-grained, equigranular granitoid rocks and porphyry; includes hornblende ± biotite-bearing gabbro (gb), diorite (di), quartz diorite (qdi), monzonite (mz), quartz monzorite (qmz) and granodiorite (gd).

SILICICLASTIC UNIT

HETTANGIAN (?RHAETIAN in part)

(Pl)

Predominantly felsic lavas and/or pyroclastic rocks or intermediate to felsic lavas and/or pyroclastic rocks.

, basaltic to rhyolitic, predominantly subaerial lavas and pyroclastic rocks locally intercalated with marine to non-marine, coarse to fine-grained pyroclastic, epiclastic and sedimentary rocks. Subdivided according to composition and lithology (see table of abbreviations and nomenclature).

Basaltic to rhyolitic, aphanitic to porphyritic flows, flow domes and volcanic breccia and minor volcanic conglomerate (see table of abbreviations and nomenclature).

Medium to coarse-grained arkosic to lithic wacke, pebble to cobble conglomerate, siltstone and minor coal. Locally fossiliferous.

Thinly bedded to massive sandstone, siltstone, mudstone and pebble conglomerate and minor coal.

BTJ , lithologies are probably to in age.

Thinly bedded to massive lime mudstone; silica replacements common and rare chert nodules; rare laminated interbeds and oolitic layers; locally fossiliferous.

, aphanitic to coarsely plagioclase-phyric, commonly amygdaloidal, subaerial basaltic lava flows with minor pillow basalt, pillow breccia and hyaloclastite (see table of abbreviations and nomenclature).

, thin horizons of pale grey limestone intercalated with Karmutsen basalt near the top of the succession.

lsu KT

CARNIAN(?) TO SINEMURIAN

LAYERED ROCKS

JBBTJ

lsu KTu KT

BLUMBERG FORMATION

CENOMANIAN OR EARLY TURONIAN TO ?SANTONIAN

cMassive conglomerate and minor lenses of coarse-grained lithic wacke.

Dark grey, calcareous to non-calcareous siltstone, shale and impure limestone interbedded with subordinate wacke and minor pebble conglomerate.

UPPER SHALE UNIT

CENOMANIAN TO ?TURONIAN

COAL HARBOUR GROUP

?ALBIAN

Upper sandstone facies: trough cross-laminated lithic wacke intercalated with siltstone, minor pebble conglomerate and rare coal.

Lower conglomerate facies: massive conglomerate with minor lenses of coarse-grained lithic wacke.

uK cg

ClK sn

ClK cg

B

usuK

JB

CARNIAN (north of Holberg-Rupert inlets)

DRAFT COPY

127° 24' 127° 12'

50° 30'

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

060504030201600000E9998979695949392

92 93 94 95 96 0397 98 99 600000E 01 02 04 05 06 090807 1514131211610000E 21620000E19181716 28272625242322 34333231630000E29 640000E3938373635 41

96

97

98

99

5600

000N

01

02

03

04

91

92

93

94

95

22

21

5620

000N

05

06

07

08

09

5610

000N

11

12

13

14

19

18

17

15

16

24

23

02

01

5600000N

99

98

97

96

09

08

07

06

05

04

03

16

15

14

13

12

11

5610000N

23

17

18

19

5620000N

21

22

24

90 90

95

94

93

92

91

50° 30'

50° 36'

50° 42'

50° 42'

50° 36'

127° 36'

127° 24' 127° 12'127° 36'