Par t s of NTS 55'

21 B/1O.15 Department 01 Na tural Resources

Lands. Minerals and PetrOleum Division

50·

New 'B'· Nouveau Brunswick PLATE 2011-14

MinistQre des Ressources naturelles

Division des terres. des min6rau:w et du petrole

45· 40· 66"S6'30-W 66"39'lO -W

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REFERENCE

Municipal Roads

-~~~~~~ National. Arterial. Collector and Local Paved Roads

======= Gravel and Other Local Roads mon Non - DOT Resource Access Roads

- Lake. River, Stream

Ferry Crossing

lighthouse

Base map der ived from Service New Brunswick 1:10 000 base map Reference System: North Amer ican Datum 1983 (CSRS) Map Projection New Brunswick Stereographic Double Projec t ion

Power Line

Marsh or Swamp Outline

Gravel Pit or Ouarry Outline

Microwave Tower

BEDROCK GEOLOGY OF GRAND MANAN ISLAND (PARTS OF NTS 21 B/lO AND B /15). NEW BRUNSWICK

MODIFIED BY J. G. MCHONE

LATE TRIASSIC FUNDY GROUP

1DHsD

DARK HARBOUR BASALT: Ashburton Head Member CTDHAH} - Dark grey . medium-grained. tholeiitic massive to columnar lava f lows Seven Days Work Member CTDHSD) - Medium grey. medium - grained vesicular lava flows with dykes and small sills Southwest Head Member (T DHSH) - Dark grey. medium- to coarse-gra ined. thole iit ic columnar lava flows. ponded within the Grand Manan Basin.

DWELLYS COVE FORMATION: Light maroon to light grey silt stone and mudstone. grading downward into fi ne - grained red sandstone

MILLER POND ROAD FORMATION: Red. medium- to coarse-grained arkosic conglomeratic sandstone with clasts of Ingalls Head Formation near its base.

EARLY CAMBRIAN

I Z£Rlmv I

I Z£FLmc I

PLUTONS

STANLEY BROOK GRANITE: Light pink. foliated. medium-grained granite intermingled with dark green. medium- grained gabbro

ROCKWEED POND GABBRO: Dark grey. medium-grained gabbro. local ly veined by greyish pink. medium-grained. foliated granite

OUTER WOOD ISLAND GABBRO: Dark grey. medium - grained gabb ro. locally veined by gabbroic pegmatite.

FISH HEAD GABBRO: Dark grey. medium-grained gabbro. locally veined by gabbroic pegmatite

HIGH DUCK ISLAND GRANITE: Light greyish pink. f ine - grained. sparsely porphyri ti c grani t e.

CAS TALIA GROUP

PRIEST COVE FORMATIO N: Dark grey to greyish green. medium-bedded malic tuff inter st ratif ied with dark grey to greenish grey. medium - bedded vo lcaniclas t ic sandstone grading t o laminated silt y mudstone: minor light grey. bedded fe lsic tuff

LONG POND BAY FORMATION ELPmva - Dark grey. massive to feldspar-phyric . mafic volcanic rocks inters t ratified with red. th ick-bedded arkosic grit and sandstone grading to red laminat ed mudstone: flow tops are coarsely amygdalo idal and stained red due to subaerial oxidation £LPmvb - Dark grey, hyaloclast ic maf ic volcanic flows and bedded tu f fs interstratif ied w ith grey ish green. thin - bedded. laminated si lt stone and light grey. fine-grained sandstone E:LPfv - Greenish pink. massive fe lsic volcanic rocks €LPmc - Medium grey. medium-bedded. feldspathic sandstone grading to light grey. laminated silty mudstone: light grey. thin-bedded. laminated siltstone interstra t itied with thick-bedded. light grey granule conglomerate con taining angular c lasts of laminated silts tone.

NORTH HEAD FORMATION: Dark grey. massive mafic volcanic f lows and breccia

ROSS ISLAND FORMATION Dark grey. massive to pillowed mafic volcanic ffows: minor dark grey mafic volcanic brecc ias. greyish green laminated siltstone. and ligh t grey quartz- and granite-clas t conglomerate (CGL).

FLAGG COVE FORMATION: Light grey to pinkish grey. thin- t o medium-bedded quartzite in terstra ti fied with medium green and dark grey. laminated silty mudstone and sha le

GREAT DUCK ISLAND FORMATION· Li ght grey. thick-bedded. volcanic-and quartz- cobble and pebble conglomerate interstratified with medium-bedded. light grey. medium green. and maroon arkosic sandstone and mudstone

EDIACARAN

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PLUTONS

THREE ISLANDS GRANITE: Dark pinkish red. medium-grained. equigranular gran ite. locally sheared and veined by quartz.

GRAND MANAN GROUP

INGALLS HEAD FORMATION Greyish green to maroon. andesitic to dacitic crystal luff and volcanic breccia interstratified w ith thin beds and lenses of laminated maroon mudstone. red jasper and iron forma t ion: minor dark grey to greyish purp le. feldspar - phyric malic volcan ic f lows. light grey. bedded felsic crystal tuffs and dark pink . spheruli t ic felsic vo lcanic flows: and greyish orange. sider itic sandstone and shale

THE THOROUGHFARE FORMATION: While. medium- to very thick-bedded quartzite interstrat ified with black carbonaceous shale.

KENT ISLAND FORMATION: Whi t e t o bu f f marble with narrow zones of steely grey magnet ite skarn along contacts with the Three Island Gran ite.

LITHOLOGIC ABBREVIAT IONS:

cc coarse - grained clast ic sed imentary rocks fe f ine-grained clastic sedimentary rocks f i felsic intrusive rocks fv felsic volcan ic rocks iv intermediate volcanic rocks mb marble mc = medium- grained clast ic sedimentary rocks mi • maf ic intrusive rocks mv maf ic volcanic rocks vs volcanic lastic rocks

LOCATION MAP

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SYMBOLS

x c- -~) Outcrop. area of outcrop

/60 h + Bedding. tops known (inclined. over turned. hor izontaO ~o ;( Bedding. tops unknown (incl ined. ver ticaO

~ ..,A Cleavage. fi rst genera t ion {inclined. verticaD y-" y-

/ --- / Geological contact .".... .............. Y Fault (thrust. undelined)

Strike-slip fault

Br it t le fault (wi th dip direc t ion and angle where known)

" .? F old axis (plungingl

Tr iassic mafic dyke. with dip direction and angle

~ / o/c Dykes (felsic. ma f ic) and veins (quartz. carbonate. barite) eo

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0131 X sv

Radiometric age (w ith reference number)

Quarry

Mineral occurrence (with Unique Record Number): SV = st rat abound deposi t s assoc iated with subaerial volcanism: VN " vein deposits

This map should be referenced in the following manner:

FYFFE . L.R .. GRANT. R.H .. and MCHONE. J.G. 2011. Bedrock geology of Grand Manan Island (paris of NTS 21 BllO and B/15). New Brunswick New Brunswick Department o f Natural Resources: Lands. Minerals and Petroleum Division. Plate 2011- 14.

MINERAL OCCURRENCES

URN NAME / COMMOOITIES

0031 SLOOP COVE - Cu 0731 SOUTHWEST HEAD - Cu 0733 WHALE COVE - Cu 0736 NORTHERN HEAD - Cu 0738 FLAGG COVE - Pb. Cu 1321 AIRFIE LD COPPER - Cu, Pb

RADIOMETRIC DATES

DEVONIAN FELSIC DYKES: 396+3/ - 2 Ma IU- Pb)

MCLEOD. MJ. JOHNSON. S.c.. and KROGH. TE Archived U- Pb Izircon) dates from southern New Brunswick Atlantic Geology. 39. pp. 209-225.

2 STANLEY BROOK GRANITE 535+/-2 Ma IU-PbI

FYFFE . L.R., VAN STAA L. CR.. VALVERDE-VAOUERO. P .. and MCNICOLL, V.J. 2011-U-Pb Age of the Stanley Brook Granite. Grand Manan Island. New Brunswick . Canada Atlantic Geology. 47. pp. 1-8.

3 PRIEST COVE FORMATION ca 539+/-3 Ma IU-PbJ

BLACK. RS. BARR. SM. FYFFE. LA. and MILLER. BV 2004 Pre-Mesozo ic rocks of Grand Manan Island. New Brunswick: fi eld relationships. new U-Pb ages. and petrochemistry New BrunswiCk Department of Natural Resources: Minerals. Policy and Planning Div ision, Mineral Resource Report 2004 - 4. pp. 21 - 40

4 HIGH DUCK ISLAND FORMATION: 547+/ - 1 Ma IU-PbJ

BLACK, RS. BARR, SM, FYFFE, LA.. and MILLER. BV 2004 Pre-Mesozo ic rocks 01 Grand Manan Island. New Brunswick: f ield relationships. new U-Pb ages. and petrochemistry. New Brunswick Department of Natural Resources; Minerals. Policy and Planning Div ision. Mineral Resource Report 2004-4. pp. 21-40.

5. THREE ISLANDS GRANITE: 611+/-2 Ma. IU-PbJ

BARR. SM, MILLER, BV. FYFFE. LR, and WHITE . CE 2003 New U-Pb ages from Grand Manan and the Wolves Islands, Sout hern New Brunswick. In Current Research 2002. Edited by B,M.W . Carrol l. New BrunswiCk Depar tment of Natural Resources and Energy. Minerals and Energy Division. Mineral Resource Report 2003-4. pp 13-22.

6 INGALLS HEAD FORMATION: 618+/-3 Ma IU-PbI

BARR. SM. MILLER. BV. FYFFE. LR .. and WHITE . CE . 2003. New U-Pb ages from Grand Manan and the Wolves Islands. Sou thern New Brunswick. In Current Research 2002. Edi ted by B,M.W . Carrol l. New Brunswick Depar tment of Natural Resources and Energy. Minerals and Energy Division. Mineral Resource Report 2003-4. pp . 13-22-

7 INGALLS HEAD FORMATION: 618+/-3 Ma IU-PbJ

MILLER. BY. BARR. SM. and BLACK. R.S 2007. Neopr01erozoic and Cambrian U-Pb (zircon) ages from Grand Manan Island. New Brunsw ick: implications for stratigraphy and northern Appalachian terrane correlat ions. Canadian Journal of Earth Sciences. 44. pp 911-923

MAIN SOURCES OF INFORMATION

ALCOCK. F.J. 1948. Grand Manan. New Brunswick. Geological Survey of Canada. Map 965A (with marginal notes)

FYFFE. L.R. and GRANT. RH 2000 Geology o f Grand Manan Island (parts of NTS 21 Bll0 and B/15)' New Brunswick New Brunswick Department of Natural Resources and Energy. Minerals and Energy Division. Plate 2000-29 (revised 2003)

HEWITT. M.D, 1993 Geochemical constraints on the source 01 sedimentary and volcanic sequences. Grand Manan Island. New BrunswiCk. Unpublished B.Sc. thesis. Department of Geology. Hartwick College. Oneonta. New York . U.S.A .. 21 p.

HILYARD. M 1992 The geologic significance of Grand Manan Island. New Brunswick Unpublished B.Sc. thesis. Department of Geology. Hartwick College. Oneonta. New York. USA, 26 p.

HODGINS. ML 1994. Trace elements. REE and Nd isotopic var iations in metavolcanic and metasedimentary sequences. Grand Manan Island. New Brunswick. Unpublished B5c. thesis. Department of Geology, Hartwick. Oneonta. New York. USA. 41 P

MCHONE. J.G 2011. Triassic basin stratigraphy at Grand Manan, New Brunswick, Canada. Atlantic Geology . v. 47 . p. 125-1 37 .

STRINGER. P. and PAJARI. G.E. 1981. Deformation of pre-Triassic rocks of Grand Manan. New Brunswick In Current Resear Ch. Part C. Geological Survey of Canada. Paper 81 - 1C. pp 9-15

TREMBATH. LT . 1973. Zeolite m ineral assemblage. Grand Manan Island. New Brunswick. In Geology 01 New Brunswick. Field Guide to Excursion New England Intercolleg iate Geological Conference. Trip A- 1. pp. 1-3.

WADE. J.A. and JANSA. L.F. 1994, Prelim inary interpre t ation of sub- Nor t h Mountain Basalt strata. Dark Harbour. Grand Manan Island. New Brunswick In Curren t Research 1994E. Geological Survey of Canada. pp. 227- 231

WADE , J.A. , BROWN , D.E. , TRAVERSE , A ., and FENSOME, R.A. 1996 . The Triassic-Jurassic Fundy Bas in, eastern Canada : regiona l setting , strat igraphy, and hydrocarbon poten ti al : Atlantic Geology, v. 32, p. 189-231.