Pleistocene Early Devonian to Pennsylvanian Cape St. John Group Middle to Late Ordovician SD:mc Quartz gabbro, diabase (Chorlton, 1980a) Surficial deposits Bimodal sequence of mainly rhyolitic and trachytic ash Red-brown, grey and buff, very thick-bedded, polymict Massive to moderately foliated granodiorite and minor DB:c flow tuffs, flows and agglomerates, and dark green to sandstone, conglomerate and breccia; minor black shale O:g tonalite. with many small mafic to ultramafic fragments Q:u Unconsolidated sediments (comp. various sources) purplish mafic flows and pyroclastic rocks; includes (comp. Dickson, 1996a) Fine- and medium-grained, pink biotite- and muscovite- (Whalen and Currie, 1988) SD:n eS:C subordinate andesitic to dacitic flows and pyroclastic bearing, two-feldspar leucogranite; local pegmatite and a rocks, cross-bedded sandstone, and conglomerate; Middle Jurassic to Early Cretaceous Early to Late Devonian single exposure of a tuffisite dyke (comp. Chorlton and metamorphosed in the greenschist and amphibolite Granby Island Formation Dildo Pond pluton Overflow Pond Granite Knight, 1983) Dark grey to black slate, argillite, and greywacke; minor facies (Williams et al., 1985) O:GY Pegmatitic, biotite-titanaugite gabbro (comp. Currie, Coarse-grained, locally garnetiferous, two-mica granite boulder conglomerate (Hibbard, 1983) JK:D D:O 1995a) (Evans et al., 1994a) Piccaire granite Charles Lake volcanic rocks Pink, equigranular, medium-grained, biotite granite SD:PI Quartz - feldspar porphyritic, flow-layered, pink to Middle Ordovician Budgells Harbour Gabbro Dark green, locally brown-weathering pyroxenite and (comp. Colman-Sadd et al., 1979) D:m purple ignimbrite, quartz-porphyritic yellow rhyolite, Impure, fossiliferous and pyritiferous limestone Analcite gabbro, hornblende gabbro, hornblende gabbro; diorite and quartz diorite (O'Brien, 1998) JK:B and pink felsic tuff; equigranular to rarely plagioclase- mO:ls conglomerate and calcarenite, containing ophiolitic pyroxenite, and biotite gabbro (Williams et al., 1985) Quartz veins (Colman-Sadd et al., 1979) porphyritic, grey to black, very thick basalt flows, rare SD:qv eS:CL detritus (comp. Colman-Sadd et al., 1992) Fine to medium grained, massive gabbro and diorite grey sandstone and pillow lava; felsic and mafic D:g Pennsylvanian (Blackwood et al., 1984) volcanic rocks are commonly interlayered; local, volcanic clast-rich, cobble conglomerate (comp. Gummy Brook gabbro Howley Formation SD:rs Red and grey, micaceous sandstone and conglomerate (possibly equivalent to the Botwood Group) (comp. Dickson, 2000c) Medium-grained equigranular gabbro sills; minor dark Grey to red sandstone, pebble-cobble conglomerate and Big Round Pond Granite Evans et al., 1994a) grey diorite sheets; coarse-grained glomeracrystic P:H siltstone, black carbonaceous shale, minor bituminous Massive, medium-grained, biotite granite (Jayasinghe, D:BR Western Head Granite mO:G gabbro and diabase (in places cutting epidotized and coal (Hyde, 1982) 1978) saussuritized gabbro); pretectonic relative to structures Buff, black and white, medium-grained, equigranular, Botwood Group in the Exploits Subzone (O'Brien, 2001b) locally foliated, biotite hornblende granodiorite, Mississippian to Pennsylvanian Sedimentary rocks at La Hune Bay Subaerial mafic and felsic flows and pyroclastic rocks, eS:W and shallow marine to subaerial, red, green and grey containing cognate xenoliths of diorite; unseparated Red and grey conglomerate, sandstone, shale, siltstone S:B Thwart Island gabbro B:s Weakly cleaved, calcareous siltstone and sandstone with sandstone, siltstone, shale, and minor conglomerate septae of Roti Intrusive Suite (O'Brien, 1990b) and minor limestone (Kean et al., 1994b) lenses of carbonate, overlying fractured, carbonate- (comp. Williams et al., 1985) Layered or massive, medium- to coarse-grained, lD:H cemented rubble zone in granite; caliche-like zone mO:H hornblende-pyroxene gabbro sills (comp. Dickson et al., Gull Pond Ridge pluton Late Devonian to Mississippian containing pebbles and boulders of granite (comp. 2000; comp. Dickson, 2000c) Dickson et al., 1996b) Dolland Pond formation Light brown to pale reddish brown, medium-grained Deer Lake Group eS:G hornblende +/- biotite monzonite, pyroxene-hornblende Thin- to medium-bedded, moderately cleaved, dark Red and grey conglomerate, sandstone, siltstone and greenish-grey sandstone, siltstone, shale and polymict diorite, and leucogabbro (Hibbard, 1983) Ebbegunbaeg Hill granite M:D mudstone; grey calcareous dolostone and dolomitic Great Bay de l'Eau Formation pebble conglomerate; minor thick-bedded, subangular, Lineated or foliated, fine- to medium-grained, limestone, with some oil shale (Williams et al., 1985) S:DP Red, purple and buff, pebble to boulder conglomerate; polymict, cobble conglomerate; metamorphosed in the Star Lake intrusive suite mO:E equigranular biotite granite (Colman-Sadd and Swinden, lD:G minor green conglomerate and red and black shale; grey 1989) lower greenschist facies (Colman-Sadd and Swinden, Slightly to moderately foliated granite and minor mafic sills and flows; local hornfels (O'Brien, 1998) Shanadithit Formation 1989; Dickson, 1990c) granodiorite intrusions ranging from subsolvus Poorly indurated, red and grey sandstone and eS:R muscovite-garnet granite, through metaluminous and Great Burnt Lake granite Mi:S conglomerate; minor limestone and siltstone (Whalen, Pools Cove Formation Dolman Cove Belt peraluminous compositions, to peralkaline arfvedsonite Strongly foliated or mylonitic, pink to white, mostly 1993a) Buff, pink and red, pebble and boulder conglomerate and Felsic volcanic rocks, principally fine-grained, felsic granite (comp. Whalen, 1993a) D:PC mO:BL megacrystic, biotite granite (comp. Colman-Sadd et al., arkosic sandstone (comp. O'Brien, 1998) pyroclastic rocks and felsic to intermediate schist, but 1992) Anguille Group (Deer Lake Basin) also including rhyolite, welded tuff, agglomerate, felsite, Topsails Igneous Suite

Grey and red sandstone, conglomerate, black and grey Cinq Isles Formation and tuffaceous metagreywacke; lesser amounts of mafic Granite, granodiorite, syenite and gabbro, including S:D Medium-grained, biotite-muscovite granite and shale, minor dolostone and limestone, deposited in Red micaceous sandstone, red and grey quartz-pebble metavolcanic rocks, amphibolite, metagreywacke, eS:T peralkaline intrusions, and lesser volcanic rocks (comp. mO:g DB:Ad metasiltstone, semipelitic schist, conglomerate, and pegmatitic, garnetiferous, muscovite granite (comp. lacustrine and fluviatile environments (Williams et al., D:C conglomerate, red shale, and red and grey limestone Whalen and Currie, 1988) injection gneiss (comp. Chorlton, 1980a; comp. Colman-Sadd and Russell, 1988) 1985) (O'Brien, 1998) Chorlton, 1980b) Donamagon Granite Through Hill Granite Devonian to Carboniferous Early to Middle Devonian Medium- to coarse-grained, pink, biotite granite La Poile Group eS:D Garnet-tourmaline-muscovite pegmatitic granite Gander Lake Granite Ocean Pond Granite (Hibbard, 1983) mO:TH Massive to stratified quartz-feldspar crystal tuff; bedded (Colman-Sadd, 1985a) Massive, grey to white, K-Feldspar megacrystic, Partly synmetamorphic, leucocratic, garnetiferous, lithic tuff and agglomerate; massive to flow-banded D:E medium- to coarse-grained, biotite granite (comp. muscovite-tourmaline granite (O'Neill, 1991a) rhyolite and welded tuff; minor breccia; quartz-rich, Flatwater Pond Group D:G Lewaseechjeech Brook plutonic suite O'Neill and Colman-Sadd, 1993; comp. O'Brien et al., S:L cross- and planar-bedded sandstone; conglomerate, grit, Pillow lava, pillow breccia, and diabase dykes and sills; 1991) tuffaceous wacke, slate and argillite; schistose to Massive to foliated, equigranular or porphyritic, biotite- Early Devonian eS:F mafic and felsic volcaniclastic rocks; black slate and hornfelsic equivalents (comp. O'Brien and O'Brien, mO:L hornblende granodiorite and tonalite (comp. Whalen, boulder conglomerate (comp. Hibbard, 1983) Indian Point granite 1989) 1993a) Terra Nova Granite Red to orange, medium-grained, pink to eD:P Mainly massive, pink, medium to mainly coarse- orange,leucocratic biotite granite (O'Brien, 1998) Burlington Granodiorite grained, K-feldspar porphyritic to equigranular Springdale Group D:TN Mainly light grey to greenish grey, medium-grained, biotite+/- hornblende granite, rare aplite (comp. Subaerial felsic, intermediate and mafic flows and eS:BU hornblende-biotite granodiorite and quartz diorite; minor O'Brien et al., 1991) Feldspar porphyry and tonalitic to granitic intrusions pyroclastic rocks; fluviatile red sandstone, conglomerate eD:c S:S related monzonitic and granitic phases (Hibbard, 1983) (comp. Currie and Williams, 1995) and shale; felsic and intermediate subvolcanic intrusive

rocks (comp. Williams et al., 1985; comp. Coyle, 1992) Maccles Lake Granite Glover Island Granodiorite Loon Bay batholith Mainly massive, medium to coarse grained, feldspar Foliated, white to beige, medium-grained, equigranular, Massive, medium-grained tonalite to granodiorite and Indian Islands Group DB:ML porphyritic or megacrystic biotite granite (comp. biotite-amphibole granodiorite with minor granite, foliated biotite-hornblende diorite; marginal phase of eS:GI Blackwood et al., 1984; comp. O'Brien et al., 1991) eD:B Grey calcareous siltstone with local fossiliferous gabbro and diorite (comp. Cawood and van Gool, 1998; biotite tonalite to granodiorite with prominent anhedral limestone lenses, overlain by grey to black shale comp. Whalen, 1993b) quartz (comp. Currie and Williams, 1995) containing thin beds of pale buff siltstone; discontinuous Middle Brook Granite S:I basal unit of coral-bearing limestone and limestone Massive, coarse grained, porphyritic granite / Late Ordovician to Middle Devonian D:M Rocky Bottom Tonalite breccia (comp. Currie and Williams, 1995; comp. Currie, granodiorite. (Blackwood, 1977) Windsor Point Complex Grey, medium-grained, equigranular, biotite tonalite, 1995b) eD:YT containing minor amphibole (Williams et al., 1985) Conglomerate, greywacke, siltstone and shale; pebbly Deadmans Bay Granite sandstone; graphitic shale; limestone; gabbro; chlorite- Indian Islands Group? sericite schist; breccia and cataclastic rocks; rhyolite, Massive, homogeneous, coarse-grained, porphyritic, Medium- to very thick-bedded, variably cleaved, grey, O-D:W Rocky Bay Pluton felsic pyroclastic and epiclastic rocks; pillowed, massive D:D biotite granite, characterized by ubiquitous microcline buff, red and green sandstone, siltstone, shale and Massive to foliated, equigranular to biotite-poikolitic, and brecciated basalt; granite (comp. Hall and van Staal, megacrysts (Williams et al., 1985) eD:YP conglomerate containing felsic volcanic, grey sandstone biotite-hornblende tonalite (Williams et al., 1985) S:I? 1999) and quartz-veined sandstone clasts; local calcareous Department of Environment and Conservation Newport Granite horizons containing corals, crinoids and brachiopods Frederickton Pluton (Dickson, 1996a) Late Ordovician to Late Silurian Massive, coarse-grained, megacrystic, biotite granite D:N Medium-grained, weakly foliated, biotite-hornblende Department of Natural Resources (Jayasinghe, 1978) eD:F Kim Lake granite tonalite (Williams et al., 1985) Northwest Cove granite Altered, brecciated and quartz-veined, pink, leucocratic Foliated, pink, medium-grained, equigranular, muscovite OS:K granite containing secondary muscovite; stibnite occurs Ackley Granite Suite Island Pond pluton (Gander Bay) S:N and muscovite-biotite granite (comp. Colman-Sadd et locally along joints (Dickson, 2000a) Map No. 2e

Undivided, medium to coarse grained, massive to Massive to foliated, biotite-muscovite and muscovite- al., 1979) porphyritic, biotite granite; D:Ag - Massive, uniform eD:I garnet granite and aplite (comp. Currie, 1995b) pink, coarse grained, equigranular, biotite granite; minor Late Ordovician to Early Silurian BEDROCK GEOLOGY LEGEND D:A miarolitic, medium to fine grained, granite; D:Agp - Rogerson Lake Conglomerate Southern Long Range mafic intrusions

Pink and gray, medium to coarse grained, massive to Ragged Harbour Pluton Grey, purple, green and red conglomerate and, locally, porphyritic, biotite granite; minor biotite - muscovite Foliated to schistose, medium-grained, equigranular to S:R micaceous and cross-bedded, arkosic sandstone (comp. Mafic plutons, layered gabbro, hornblende gabbro, phases; minor granodiorite eD:H porphyritic, biotite-muscovite granite; locally Evans et al., 1994a) OS:S lecogabbro, diorite, quartz diorite, and minor

garnetiferous leucogranite (Williams et al., 1985) granodiorite (Currie and van Berkel, 1992) SYMBOLS Petites Granite Rogerson Lake Conglomerate? Aspen Cove Pluton ! Pink to red, coarse-grained, equigranular, potassium ! Fine- to medium-grained gabbro intrusive into ! ! ! D:P Polymict conglomerate with minor sandstone beds OS:r ! Contact (defined, approximate, assumed)...... ! Massive to foliated, medium-grained, biotite+/- ! S:R? ! feldspar-rich granite (Williams et al., 1985) Ordovician age rocks (comp. Whalen, 1993a) ! eD:A muscovite granodiorite and granite; locally garnetiferous (comp. Colman-Sadd and Russell, 1988)

in leucocratic phases (Williams et al., 1985) Contact; gradational or transitional...... Badger Group Pass Island Granite Wild Cove Pond Igneous Suite Pink, medium- to coarse-grained, biotite-hornblende Grey, well-bedded greywacke, including conglomerate Unconformity, defined...... D:PI Third Berry Hill Pond granite Diorite, granodiorite, biotite granite, and two-mica granite (O'Brien, 1998) S:W layers, overlain by grey and minor red conglomerate; K granite (Hibbard, 1983) OS:B K Fine- to coarse-grained, garnetiferous, muscovite-biotite K sedimentary structures indicate deposition in a mainly Fault...... K K eD:T leucogranite and coarse-grained, porphyritic, biotite K

Francois Granite turbiditic environment (comp. various sources) d granite (comp. Blackwood and Green, 1983) Southwest Brook granite High Angle Fault...... d

Two ring complexes mainly composed of high-silica, d Pink, massive, fine-grained, granophyric granite massive, fine- to coarse-grained, porphyritic to S:SW Late Ordovician + lD:F Middle Ridge Granite (Dickson et al., 2000) Thrust Fault...... + equigranular, biotite granite (comp. Dickson et al., Lawrence Harbour Formation + Fine-, coarse-grained or pegmatitic, equigranular or 1996a) Black, carbonaceous shale; black, pyritiferous siltstone eD:M porphyritic, garnetiferous muscovite-biotite granite Shear Zone...... Early Silurian with black shale partings; brown-weathered, (comp. Blackwood and Green, 1983) Grey River Point Granite King's Point Complex lO:LH manganiferous chert, siliceous argillite and rare tuff; Anticlinal axis defined...... F Fine- to medium-grained, locally pegmatitic, Peralkaline to metaluminous, felsic subaerial ash-flow grey chert with bioturbated, black shale laminae D:GR Long Island Granodiorite tuffs, and hypabyssal to subvolcanic syenite, quartz- (O'Brien, 1992a) hornblende-biotite, granite (comp. Dickson et al., 1996a) eS:K Synclinal axis defined...... M Hornblende-biotite granodiorite, biotite granite, felsite, syenite and granite (comp. Miller and Abdel-Rahman, eD:L and quartz-feldspar porphyry (O'Brien, 1991b) 2003) Black shale and minor siliceous slate, chert, argillite, and Chetwynd Granite lO:b greywacke (Evans et al., 1994a) Pink, fine- to medium-grained, equigranular biotite Late Silurian to Mississippian Sheffield Lake Complex granite; minor porphyritic to subporphyritic granite; mD:C Variably welded, fine-grained ash-flow tuffs containing unseparated, microspherulitic, quartz-feldspar porphyry Ironbound monzonite Main Point Formation REFERENCE: dykes (O'Brien, 1990b) Massive to foliated, medium- to coarse-grained, biotite crystals of quartz and alkali feldspar with less abundant Graptolitic, black shale containing bedded chert and lithic clasts; aphanitic, commonly flow-banded, vitric lO:M Colman-Sadd, S. P., and Crisby-Whittle, L. V. J. (compilers) 2005: Partial bedrock S-C:I +/- hornblende +/- augite monzonite, monzodiorite, chert lenses (comp. Currie, 1995b) granodiorite and granite (O'Brien and Dickson, 1986) eS:S tuffs; mafic to intermediate flows; peralkaline quartz- geology dataset for the Island of Newfoundland (NTS 02E, 02F, 02L, 02M, 11O, 11P, 12A, Old Woman Stock potassium-feldspar porphyry characterized by 12B, 12G, 12H, 12I, 12P and parts of 01M, 02D). Newfoundland and Labrador Department of Natural Resources, Geological Survey, Open File NFLD/2616 version 6.0. Pink, medium- and coarse-grained, porphyritic biotite metasomatic oikocrysts of riebeckite (comp. Coyle et al., Dark Hole Formation D:OW Late Silurian to Late Devonian granite; minor aplite (O'Brien, 1998) 1986) Tuffaceous dark chert overlain by slaty argillite with Ramea Complex lO:K minor thinly bedded siltstone layers (Williams et al.,

Massive to foliated, leucocratic granite, potassium- La Scie Intrusive Suite 1985) Belleoram Granite feldspar porphyritic biotite granite, biotite-hornblende Biotite granite, riebeckite syenite, and pyroxene gabbro, Grey to pink, medium- and fine-grained, equigranular granodiorite, and metagabbro; strongly sheared to granite containing many small, dark grey and green to SD:R eS:L all of which may be genetically related (comp. Hibbard, Shoal Arm Formation mylonitic, potassium-feldspar porphyroclastic granite; black inclusions; red felsite and fine-grained granite, 1983) Red to green and black chert; black carbonaceous lD:B posttectonic gabbro, quartz diorite and diabase (comp. developed locally at the pluton margin; pink to brown lO:A argillite and argillaceous siltstone; minor siliceous tuff Dickson et al., 1996a) quartz-feldspar porphyry (Red Head Porphyry) (O'Brien, Cape Brule Porphyry (Dean, 1977g) 1998) Coarse-grained, equigranular, pink biotite granite with Quartz-feldspar porphyry containing abundant mafic and SD:ra Middle Ordovician to Early Silurian rapakivi phases; rhyolite porphyry dykes (Chorlton, eS:B ultramafic xenoliths; includes minor quartz-feldspar Middle Devonian 1980a) intrusions into the Cape St. John Group (Hibbard, 1983) Porterville gabbro Hunts Ponds Granite Massive, epidotised, fine-grained gabbro (Dickson et al., Foliated, equigranular, muscovite-biotite-garnet granite Micmac Lake Group OS:P AMEC Earth & Environmental mD:H Porphyritic granite, granodiorite, monzodiorite and 2000) (O'Neill and Colman-Sadd, 1993) SD:p Felsic volcanic and volcaniclastic rocks, sandstone, quartz diorite (comp. Chorlton, 1980a) eS:M A Division of AMEC Americas Ltd. conglomerate, and mafic flows (Hibbard, 1983)

Late Silurian to Middle Devonian Business Cove Granite Summerford Group SD:mx Mainly massive, medium to coarse grained, feldspar O:i Grey, foliated and sheared, medium-grained, Barasway Point gabbro porphyritic or megacrystic biotite granite (Blackwood et Foliated, medium-grained, muscovite-biotite granite equigranular, biotite granodiorite (Dickson, 1987) Mafic pillow lava, breccia and agglomerate; limestone SD:BU al., 1984) with minor garnet (Jayasinghe, 1978) O:S lenses, discontinuous limey tuff and arkose; silty and Dark green to black, medium- to coarse-grained, locally foliated, hornblende gabbro (containing pink feldspars in crystalline limestone (comp. Williams et al., 1985) SD:BY Baie d'Espoir Group places); minor diorite and intrusion breccia; unseparated Granite and quartz-feldspar porphyry (Kean et al., North Pond Granite Marine clastic sedimentary rocks, including large diabase dykes (O'Brien, 1990b) SD:o 1994b) Foliated (locally massive), medium-grained, muscovite- amounts of turbidite with a significant volcanogenic Early to Middle Ordovician SD:NR biotite or porphyritic granite with minor garnet (comp. O:Y component; includes felsic, intermediate and mafic Mary Ann Lake granite SD:rh Grey to pink, brecciated and hematized, plagioclase Gabbro, diorite and quartz monzonite (comp. Evans et Jayasinghe, 1978) volcanic rocks, most of which are pyroclastic and porphyritic rhyolite (Dickson, 1990a) SD:m probably submarine (Williams et al., 1985) Weakly to strongly foliated, medium-grained, white to al., 1994a) buff, equigranular, two-feldspar, biotite granite and Wareham Granite granodiorite commonly containing psammite, semi- Cochrane Pond granite Medium- to coarse-grained, undeformed, pink, Foliated (locally massive), coarse-grained, megacrystic, Davidsville Group O:MA pelite and amphibolite xenoliths; commonly rust SD:mp SD:W Massive to weakly foliated, fine- to medium-grained, equigranular, locally potassium-feldspar megacrystic, biotite granite (Jayasinghe, 1978) Shale and thinly bedded siltstone and sandstone, coloured where biotite-rich psammite xenoliths are

SD:CP equigranular, muscovite-biotite granite (O'Brien and biotite granite (Kean, 1983) probably representing distal turbidites; thickly bedded abundant; granite dated by U/Pb (zr) at 463 +6/-4 Ma

Dickson, 1986) sandstone and minor shale and conglomerate, probably (Dickson, 2000c) Dover Fault Granite O:D representing more proximal turbidites; minor limestone SD:gd Gabbro, diorite and diabase (Swinden and Sacks, 1996) Foliated, fine to medium grained granitoid, ranging in and felsic and mafic volcanic rocks (comp. Williams et North West Brook Complex composition from granite to adamellite to granodiorite Otter Pond complex SD:DF al., 1985) Pink, buff and grey, weakly foliated, equigranular to locally mylonitized, garnetiferous or porphyritic. (comp. Massive to weakly foliated, buff to pink, fine- to potassium porphyritic, biotite, biotite-muscovite and SD:bm Mainly biotite+/- muscovite granite and granodiorite, O'Brien et al., 1987) medium-grained, hornblende +/- biotite granodiorite to SD:X muscovite granite and granodiorite; cut by pegmatite and locally contains garnet, tourmaline, or hornblende. Southwest Brook complex tonalite; massive to foliated gabbro to diorite, O:OP aplite veins containing muscovite, garnet and tourmaline (Blackwood et al., 1984) Foliated and massive tonalite, biotite granite, characteristically containing brown hornblende Lockers Bay Granite (comp. Dickson, 1987) granodiorite, quartz diorite and leucogranite; commonly oikocrysts and phenocrysts (comp. van Staal et al., in Coarse-grained, microcline, megacrystic, biotite granite. porphyritic; medium- to coarse-grained hornblende press) SD:mf Foliated, grey or pink, equigranular sericitic granite, cut O:SW Missing Island Granodiorite SD:LB It is overprinted by a penetrative foliation, commonly gabbro and diorite; weakly foliated fine- to medium- by vuggy quartz veins and containing small lenses of with a cataclastic component. (Williams et al., 1985) Grey, medium-grained, equigranular, biotite massive pyrite (comp. Colman-Sadd, 1989) grained diabase (comp. Currie and van Berkel, 1992; O:se Conglomerate and sandstone containing a large granodiorite, containing accessory hornblende; comp. Kean, 1983) proportion of ophiolitic clasts (comp. various sources) SD:MI Eastern Meelpaeg Complex: Unseparated, foliated, associated aplite dykes contain muscovite and garnet Dawes Pond Granite (Williams et al., 1985) medium to coarse grained equigranuler to porphyitic Medium-grained, hornblende-rich (+/- biotite), Grey to pink, medium- to fine-grained granite, quartz- biotite-hornblend granitoids, biotite - muscovite granite O:t Grapnel gabbro SD:D OD:E equigranular tonalite (O'Brien, 1982) monzonite and granodiorite (Dean, 1977d) and muscovite - garnet - tourmoline granites; includes Medium-grained, massive, hornblende-biotite gabbro Matthews Pond Granodiorite O:X minor sedimentary rocks. May include rocks equivalent (comp. Hibbard and Williams, 1979) Grey, medium-grained, equigranular, biotite-muscovite Fogo batholith to CO:gm Hamilton Sound group SD:MP granodiorite; associated aplite dykes contain muscovite Siltstone, shale and minor sandstone containing coticules and garnet (Williams et al., 1985) Pink, medium-grained, amphibole granite to Coaker porphyry granodiorite; fine-grained alaskitic granite, feldspar Burgeo Intrusive Suite and olistostromes; melange of siltstone, sandstone and O:H mafic volcanic blocks in a black shale matrix; Quartz porphyry containing ultramafic inclusions and, porphyry and microgranite; diorite and lesser gabbro, Variably foliated, feldspar-porphyritic, biotite +/- volcaniclastic rocks, pillowed and massive basalt, and O:CK locally, garnet xenocrysts (comp. Currie and Williams, Dolland Bight granite SD:F locally layered; quartz diorite, monzodiorite, agmatite hornblende granodiorite and granite, and lesser feldspar- SD:G 1995) White, equigranular, garnetiferous, muscovite and and hybrid rocks; minor hornblendite, clinopyroxenite mafic dykes (comp. Johnston et al., 1994) porphyritic biotite +/- muscovite granite; minor gabbroic muscovite-biotite granite, commonly pegmatitic, locally and peridotite; felsite, intermediate and mafic dykes rocks (comp. Dickson et al., 1996a) SD:DB Puncheon diorite foliated; occurs as sheeted sills within the Little Passage (comp. Currie, 1997b; comp. Baird, 1958) Boones Point Complex Gneiss (comp. various sources) Polymictic blocks in scaly-foliated melange, Zoned intrusion of gabbro, diorite and monzonite (Currie Roti Point felsite O:Z Black Cove Gabbro straightened metasedimentary and metavolcanic rocks, and Williams, 1995) Buff to light pink, aphanitic to microporphyritic felsite; and mylonite; mainly derived from the Moores Cove North Bay Granite Suite Massive to weakly foliated, fine- to coarse-grained, O:BP SD:RP brecciated (tuffisitic) texture; marginal stockworks of Formation of the Cottrells Cove Group, but includes Phillips Head Igneous Complex SD:BC hornblende metagabbro and hornblendite (Dickson et al., Massive to weakly foliated, medium- to coarse-grained, quartz veins (O'Brien, 1990b) blocks probably derived from other units of the Notre 1996b) Vesicular, pyroxene-plagioclase, porphyritic diorite; equigranular to porphyritic, biotite +/- muscovite Dame and Exploits subzones (comp. O'Brien, 1991b) autobrecciated diorite containing ophitic pyroxene, SD:N granodiorite and granite; locally includes biotite- Skull Hill Quartz Syenite hornblende and feldspar megacrysts; local swarms of hornblende tonalite, muscovite-garnet granite, gneissic O:PH Early Silurian to Middle Devonian diabase dykes; bedded pillow lava and pillow breccia granite and migmatite (comp. Williams et al., 1985) Quartz syenite, quartz monzonite, diorite and gabbro Sops Head Complex Medium- to coarse-grained, massive, biotite SD:S containing interstratified, epiclastic sandstone that SD:rr (comp. Evans et al., 1994b) Tectonic melange containing large blocks and lenses of gabbronorite (Kean, 1983) grades to green argillite (Dickson et al., 2000) mafic and felsic volcanic rocks, limestone, Kaegudeck diabase Hodges Hill Intrusive Suite conglomerate, greywacke and argillite, in part as fault Green to grey, generally massive, medium- to fine- Long Pond diorite O:M slivers and in part in a deformed shale matrix; includes Snowshoe Pond granite Massive, fine- to coarse-grained, equigranular to K- grained, mainly equigranular to locally plagioclase- rocks that may have been derived from the Roberts Arm SD:A Grey, medium-grained, equigranular, hornblende-biotite feldspar-porphyritic, mainly pink or red, biotite granite, Equigranular or locally megacrystic, mylonitic to weakly porphyritic, chloritized diabase sills and dykes (Dickson, SD:LP Group, the Sansom Formation and possibly the Shoal diorite (comp. Colman-Sadd, 1980) SD:H granodiorite and minor tonalite; massive, fine- to coarse- O:SP foliated, medium-grained, grey, pink or red, biotite 2000a) Arm Formation (comp. Bostock, 1988) granite and granodiorite (comp. Colman-Sadd, 1987) grained gabbro and quartz diorite (comp. Dickson, 2000c) SD:d Metamorphosed diorite (comp. Dickson, 2000a) Harbour Le Cou Group Late Silurian to Early Devonian Intrusions into the Roberts Arm Group, including Thick- to medium-bedded psammite with thin beds of O:r Ten Mile Lake formation Early to Late Silurian coarse-grained, pyroxene (hornblende) gabbro and rusty, sulphidic pelite and sheets of garnet- and/or equigranular, hornblende quartz diorite (comp. Dickson, Purple to crimson shale interbedded with thin, pink Steel Pond gabbro Stony Lake Volcanic Rocks clinopyroxene-bearing, locally pillowed, amphibolite; 2001) SD:M sandstone beds and a few thick, pink to grey-green Equigranular, medium-grained, hornblende and calc-silicate pods or lenses are common in thick Rhyolite and rhyodacite tuffs, welded tuffs, breccias and sandstone beds (comp. Currie and Williams, 1995) SD:T hornblende-biotite gabbro, diorite and minor psammite beds; thin-bedded, rusty sulphidic pelite to S:T minor flows; associated red and grey siltstone and O:CU granodiorite (Colman-Sadd and Swinden, 1989) sandstone (comp. various sources) semipelite, minor psammite with thin bands of coticule Roberts Arm Group La Poile Granite and sparse to absent amphibolite; sulphidic pelite and Mafic pillow lava, pillow breccia, agglomerate and tuff; Round Pond Gabbronorite semipelite metamorphosed to biotite-muscovite-garnet- O:R felsic lava and pyroclastic rocks; shale, argillite, Mainly white, megacrystic alkali feldspar, biotite granite Early Ordovician to Late Devonian and granodiorite with associated aplite and pegmatite Equigranular, medium-grained, olivine gabbronorite, sillimanite schist; includes some narrow sheets of Rose greywacke and chert (comp. Williams et al., 1985) Partridge Point granite SD:L phases; minor sheets and pegmatites intrude the Rose hornblende and hornblende-biotite gabbro and diorite, Blanche Granite (comp. van Staal et al., 1996b) SD:U Blanche Granite (comp. van Staal et al., 1996b; comp. White to light grey, medium-grained, leucocratic, and minor hornblende granodiorite (Colman-Sadd and S:P Pierre's Pond plutonic suite Skidder basalt Chorlton, 1980a) Swinden, 1989; Colman-Sadd, 1980) muscovite granite; locally garnetiferous (Hibbard, 1983) Mainly foliated, biotite-hornblende granodiorite, and Pillow lava, breccia, massive flows, minor mafic

O:P hornblende tonalite, diorite and gabbro (comp. Whalen, O:Sk pyroclastic rocks, bedded chert, and trondjemite (Evans

Peter Snout granite Redcross Lake Intrusion Granodiorite, porphyry, dacite, diabase and gabbro 1993a) et al., 1994a) O-D:i Massive, fine- to medium-grained, equigranular, biotite Medium-grained, grey gabbro and/or diorite, cut by (Kean et al., 1994b) SD:PS +/- muscovite granite; locally garnetiferous (comp. veins of gabbroic and granitic pegmatite; lesser amounts Buchans Group SD:RC O:n Grey, mainly fine-grained, equigranular, nebulitic O'Brien and Dickson, 1986; comp. O'Brien, 1982) of troctolite, dark green pyroxenite and biotite granite; Mafic, intermediate and felsic submarine flows and Early Ordovician to Late Silurian hornblende granite, containing ubiquitous xenoliths of local igneous layering (comp. Colman-Sadd, 1987) pyroclastic rocks; volcaniclastic sedimentary rocks, Suley Ann Cove pluton Cinq Cerf Gneiss (comp. O'Brien and O'Brien, 1989) O:B Medium- to fine-grained equigranular leucogranite; minor chert and iron formation (comp. Williams et al., SD:ps White to grey, medium-grained tonalite, quartz contains minor muscovite and garnet (Chorlton, 1980a) Medium-grained, biotite granite (Kean, 1982) 1985) SD:rg OS:SA monzonite and quartz-feldspar porphyry (Kean et al., Migmatites associated with Burgeo Intrusive Suite

1994b) High grade metamorphic rocks adjacent to and included Catchers Pond Group SD:t Well foliated granodiorite, tonalite and muscovite- within the Burgeo Intrusive Suite; includes migmatite, bearing granite; the latter may or may not contain biotite Equigranular, medium-grained, white, muscovite-biotite O:m SD:w Weakly foliated, fine-grained, equigranular mafic dykes agmatite, granitoid gneisses, paragneiss, amphibolite and Mafic pillow lava and agglomerate, felsic agglomerate and/or garnet (comp. Chorlton, 1980b) granite and quartz-feldspar porphyry (Colman-Sadd, OS:d schist (comp. O'Brien and Dickson, 1986) O:CP and tuff, felsic lava, and thin beds of chert and limestone 1987) (Colman-Sadd, 1980) (Williams et al., 1985) Piglet Brook rhyolite Biotite granite and granodiorite (Kean, 1982) OS:bd Metadiabase dykes (Chorlton, 1980a) O:l Wilding Lake granite Catchers Pond Group? SD:PB Pink to cream rhyolite (Chorlton, 1980b) Grey, foliated, medium-grained, porphyritic and Basaltic pillow lava, intermediate to mafic tuffaceous equigranular biotite granite, associated with garnet- SD:WL Fine- to medium-grained gabbro and diorite with minor Fine- to coarse-grained, equigranular granodiorite and O:CP? rocks and massive flows, chert, argillite and iron muscovite aplite veins; minor grey or pink, unfoliated OS:m O:gt Hawks Nest Pond Porphyry diabasic phases (Kean, 1979a) tonalite (Kean et al., 1994b) formation (comp. Kean et al., 1994b) biotite granite (comp. Colman-Sadd, 1987) Pink to red, fine-grained, locally foliated, biotite- SD:HN bearing, quartz-feldspar porphyry containing pale green, Long Island pluton Halfway Mountain granodiorite saussuritised plagioclase (O'Brien, 1990b) OS:v Schistose and folded, medium- to thin-bedded, grey Early Silurian to Early Devonian biotite psammite, semipelite, migmatite and minor felsic Grey to black, medium-grained granodiorite, diorite and Slightly foliated, white to beige, medium- to coarse- Uralitized and saussuritized gabbro dykes, possibly tuff; all probably contact metamorphosed by the Hodges O:LI gabbro exhibiting multiphase intrusion breccias; minor O:HY grained, biotite-amphibole subsolvus granodiorite to

Rose Blanche Granite SD:tp related to the Mount Peyton Intrusive Suite (comp. Hill intrusive suite (Dickson, 2000c) granite aplite (Kean et al., 1994b) granite (comp. Whalen, 1993a)

Mainly white, rarely pink, foliated, equigranular, biotite- Currie, 1995a) muscovite granite, locally garnet-bearing, and tonalite Early Ordovician to Early Silurian Dolland quartz diorite Hungry Mountain Complex and granodiorite; contacts with country rock generally SD:RB Mount Peyton Intrusive Suite Duder Group Grey to black, medium-grained quartz diorite and minor Massive to foliated tonalite, granodiorite, diorite, gradational and characterized by abundant migmatites; O:DI gabbro, amphibolite and minor granite and gneiss; Equigranular, biotite granite and minor granodiorite; Intensely cleaved, dark grey shale and siltstone gabbro (Kean et al., 1994b) O:HM elongated xenoliths or enclaves of country rock common contains rare inclusions of ultramafic rocks (comp. (comp. van Staal et al., 1996b; comp. Chorlton, 1980a) SD:P equigranular, mainly hornblende and pyroxene gabbro; containing rare blocks of volcanic rocks and limestone; Williams et al., 1985) diabase dykes (comp. various sources) melange consisting of blocks of gabbro and bimodal Cooper's Cove pluton

OS:D volcanic rocks in sheared siltstone and shale; Quartz-monzonite, granodiorite, granite, tonalite, quartz- Otter Point Granite conglomerate, grey and greenish psammite and siltstone- O:CC Cutwell Group Bear Pond gabbro diorite, diorite and gabbro (comp. Kean et al., 1994b) Pale pink to buff, coarse-grained, potassium-feldspar shale rhythmites, and olistostrome beds (comp. Currie, Mafic to intermediate pillow lava, agglomerate and tuff; SD:O porphyritic, locally foliated, biotite-bearing, megacrystic White, coarse-grained and black, medium-grained, 1997a) lesser amounts of greywacke, argillite, shale, chert, granite; minor granite pegmatite (O'Brien, 1990b) hornblende gabbro and black diabase; gabbro locally Colchester Pluton O:C limestone and felsic pyroclastic rocks; unseparated

SD:E displays a weak mineral alignment; possibly equivalent Medium- to coarse-grained granodiorite, quartz-diorite, diabase, gabbro and intrusive dacite (comp. Kean et al., to gabbro 'mlc' of the Mount Peyton Intrusive Suite Early to Late Ordovician O:O tonalite, diorite and gabbro (comp. Kean et al., 1994b) 1994b) Late Silurian (Dickson, 1996a) Black, graphitic, well-cleaved shale and siltstone

McCallum Granite containing graptolites ranging in age from late Arenig to O:k Wellman's Cove pluton Cutwell Group? Fine- to coarse-grained, equigranular to feldspar early Ashgill (comp. Dickson, 1996a; comp. Williams SD:mb Foliated, medium-grained, hornblende gabbro and Tallman, 1995) Grey to black, medium-grained diorite, quartz diorite Basaltic pillow lava, mafic tuff, breccia, chert, argillite lS:M porphyritic, biotite granite to granodiorite that is O:C? (Jayasinghe, 1978) and gabbro with extensive xenoliths of mafic and commonly banded (Blackwood, 1985) O:WL and iron formation (comp. Kean et al., 1994b) ultramafic rocks; diabase and red felsic dykes (Kean et Pink, fine- to medium-grained, biotite+/-muscovite Massive, medium-grained, muscovite granite and felsite O:hi al., 1994b) SD:c granite and aplite (Whalen and Currie, 1988) Chanceport Group Gaultois Granite (O'Brien and Dickson, 1986) Pillowed and massive basalt, containing horizons of Dominantly well-foliated, coarse-grained, biotite granite Bob Head pluton and granodiorite, containing prominent pink, potassium- Hinds Brook Granite volcanic breccia, conglomerate and sandstone, and Massive to strongly foliated , buff to pink, medium- Medium- to coarse-grained gabbro and diorite; grey to feldspar megacrysts; includes equigranular tonalitic, SD:bn White to pink, medium- to coarse-grained, biotite- O:CH lenses of chert; green and red siltstone, shale and lS:G grained, equigranular to quartz-porphyritic, biotite O:BH pink, quartz monzonite with mafic xenoliths (Kean et al., turbiditic sandstone; felsic agglomerate and bedded tuff quartz-dioritic, dioritic and gabbroic phases and O:HG amphibole, K-feldspar-porphyritic, two-feldspar granite granite (Dickson et al., 1990) 1994b) (comp. Williams and Currie, 1995) inclusions; commonly cut by pink pegmatite and aplite (Whalen and Currie, 1988) veins (comp. various sources) Dykes, sills and stocks of white, equigranular, Keepings Gneiss Cottrells Cove Group garnetiferous, muscovite and muscovite-biotite granite, O:p Poorly bedded to unbedded, medium-grained psammitic Seal Nest Cove tonalite schist, and quartz-biotite and graphitic schist, containing Massive and banded, felsic, amphibolite facies schists, Dark green pillow lava, mafic agglomerate and pillow SD:gp fine- to medium-grained or pegmatitic, locally foliated with intermediate to mafic lenses; quartzofeldspathic Fine-grained, biotite tonalite, containing plagioclase (comp. Colman-Sadd and O'Driscoll, 1979; comp. varying proportions of quartz and granite sweats; O:KG breccia; felsic tuff and agglomerate with interbedded lS:S probably derived by metamorphism of the Salmon River gneiss; commonly migmatitic; sedimentary features O:L grey and red chert and siliceous argillite; reddish-brown phenocrysts (Colman-Sadd et al., 1979) Blackwood, 1985) Dam or Cold Spring Pond formations (Colman-Sadd and preserved locally (comp. Williams et al., 1985) feldspathic wacke interbedded with grey siliceous Swinden, 1989) argillite and minor red argillite (O'Brien, 1990a) Dark green to black (locally containing pink feldspars), Massive to foliated, medium to coarse grained, feldspar Cormacks Lake Complex lS:i medium- to coarse-grained gabbro (O'Brien and O'Brien, porphyitic or megacrystic biotite granitoids; biotite - Cold Spring Pond Formation Supracrustal rocks consisting of cordierite-gedrite

1989) SD:g muscovite granite and garnetiferous leucogranite; Green, volcaniclastic arkose and greywacke forming gneiss, psammite, pelite calc-silicate gneiss, and Exploits Group sereens and sheets of schist, psammite, quartzite and turbidite sequences; interbedded black, graphitic slate amphibolite, which includes garnet-hornblende +/- Marine pillow lava and pyroclastic rocks, turbidite amphibolite east of Meelpaeg Lake and polymictic conglomerate; mafic pillow lava and clinopyroxene layered metavolcanic rocks and sequences of sandstone, shale and siltstone, argillite, Early Silurian to Late Devonian O:V O:E massive basalt, associated with black, siliceous, quartz O:CL metagabbro; intruded by orthogneiss consisting of chert, conglomerate and olistostromes (comp. Williams Unseparated, foliated granite and metasedimentary rocks Cape Freels Granite +/- feldspar crystal tuff and rhyolitic porphyry (comp. garnet-hornblende-clinopyroxene granodiorite, locally et al., 1985) SD:u (in approximately equal proportions) (O'Brien et al., Foliated to massive, coarse-grained, megacrystic, biotite Swinden, 1988) with blue quartz eyes; younger charnockitic 1991) SD:CF granite (Jayasinghe, 1978) clinopyroxene-garnet +/- orthopyroxene syenogranite to granite (comp. Pehrsson et al., 2003) Dunnage Melange Cambrian to Ordovician Late Neoprotorozoic to Cambrian Simmons Brook Intrusive Suite Blocks of mainly mafic volcanic rocks, gabbro, Betts Cove Complex Youngs Cove Group Grey, medium-grained, equigranular, hornblende-biotite greywacke, limestone, micaceous sandstone and granite, granodiorite and tonalite; dark grey to green, fine- to O:A Ophiolite complex including dunite, peridotite, Shallow marine sedimentary rocks including grey N:S in a chaotic matrix of black and green shale, argillite and pyroxenite, serpentinite, gabbro, sheeted diabase dykes, siltstone and sandstone, white orthoquartzite, red, green medium-grained diorite; medium- to coarse-grained CO:B NC:Y pebbly mudstone (Williams et al., 1985) mafic pillow lava and pillow breccia, and minor clastic and black shale, and minor grey and pink limestone gabbro (O'Brien, 1998) sedimentary rocks (comp. Hibbard, 1983) (comp. O'Brien, 1998) Early Ordovician Connaigre Bay Group Snooks Arm Group Advocate Complex Late Neoprotorozoic Marine, grey and green siltstone, sandstone and minor Arc tholeiitic pillow lava, pillow and talus breccia and Intensely dismembered and deformed mafic and Long Harbour Group conglomerate and limestone; andesite, basalt, and mafic N:C tuff and agglomerate; subaerial, red to purple, siltstone, associated mafic dykes; evolved tholeiitic pillow basalt ultramafic plutonic rocks, mafic volcanic and Subaerial rhyolite, andesite and basalt, and related CO:A sandstone and conglomerate; rhyolite and felsic tuff and and massive flows, alternating with calc-alkaline volcaniclastic rocks, and dark grey to black slates pyroclastic rocks; minor pillow basalt; marine sandstone eO:S andesitic and dacitic pyroclastic rocks and minor (Hibbard, 1983) breccia (comp. O'Brien, 1998) N:LH and shale; red subaerial conglomerate, sandstone, rhyolitic tuff; interstratified sedimentary rocks including siltstone and related siliclastic rocks (comp. O'Brien, boulder conglomerate, turbiditic sandstone, siltstone, Point Rousse Complex 1998) Connaigre Bay Group? mudstone, ironstone and tuff (comp. Bedard et al., 2000) Pillow lava, mafic volcaniclastic rocks, and minor chert, Mafic tuff, tuffaceous sandstone and minor basalt; marble and iron formation; sheeted diabase dykes, Musgravetown Group metasedimentary and metavolcanic rocks, including Loon Pond - Woodfords Arm plutons CO:R N:C? psammite, amphibolite and rare mylonitic paragneiss; gabbro and metagabbro, and serpentinized and altered Undivided thick succession of red and green, fine- to Quartz monzonite, granodiorite, granite, quartz diorite, ultramafic rocks (comp. Hibbard, 1983) minor unseparated granodiorite and diorite (comp. eO:F N:Ms coarse-grained, sandstone, conglomerate, siltstone and diorite and various hybrid rocks (comp. Bostock, 1988) shale; minor silicic and mafic volcanic rocks O'Brien, 1998) Pacquet Harbour Group Furbys Cove Intrusive Suite Baggs Hill Granite Pillow lava, pillow breccia, and other mafic volcanic, Love Cove Group Pink to white, equigranular, blue-quartz-bearing granite; volcaniclastic rocks and diabase dykes; minor felsic Chloritic and sericitic schist derived from felsic and Foliated, equigranular granite and granodiorite; CO:Q granite porphyry; medium-grained, green to dark grey volcaniclastic rocks, possibly including tuffs or flows; N:F eO:B granophyre, quartz porphyry, quartz-feldspar porphyry mafic lavas and pyroclastics, conglomerate, sandstone quartz diorite; mafic and felsic dykes, and screens of minor gabbro intrusions (comp. Hibbard, 1983) N:LC (Chorlton, 1980a) and shale. (maybe deformed and metamorphosed country rocks (comp. O'Brien, 1998) equivalent of Musgravetown Group) Unnamed ophiolite (emplaced in Fleur de Lys Supergroup) Partridgeberry Hills Granite Tickle Point Formation Chloritized and sericitized, perthitic microcline, biotite Serpentized ultramafic rock tectonically included in the Equigranular, medum-grained, chlorite granite, intruded CO:OF N:q Buff- to brown-weathering, pink to purple and green, granite, locally strongly foliated; includes a high-silica Fleur de Lys Supergroup (comp. various sources) by mafic dykes (Colman-Sadd, 1987) eO:P felsic volcanic rocks, including massive and banded phase of muscovite-biotite granite (comp. Colman-Sadd, rhyolite flows and crystal and crystal-lithic felsic tuffs; N:T 1985a) Unnamed ophiolite (Notre Dame Subzone) minor basalt and andesite flows and interlayered, N:m Medium- to coarse-grained diorite (Evans et al., 1994c) Ultramafic rocks, gabbro, trondhjemite, diabase, tuffaceous sedimentary rocks; locally contains Hall Hill - Mansfield Cove Complex CO:ON volcanic and sedimentary rocks of the ophiolite suite unseparated diorite sills and plugs (O'Brien, 1998)

Mafic and intermediate intrusive rocks, and (comp. various sources) Valentine Lake Quartz Monzonite plagiogranite; includes minor pyroxenite, granodiorite, eO:H Quartz-porphyritic quartz monzonite, granodiorite and Middle Mesoproterozoic alaskite, and pillow lava (comp. Swinden and Sacks, South Lake Igneous Complex N:V quartz diorite; lesser amounts of diorite and gabbro; Elsonian anorthosite suites 1996) Coarse- to medium-grained tonalite, hornblende diorite, minor pyroxenite (comp. Kean, 1982) Coarse-grained, massive to well foliated, grey to bluish

CO:SL massive and layered gabbro, and sheeted dykes (comp. grey and buff anorthosite and gabbroic anorthosite,

Star Lake ophiolite complex MacLachlan and Dunning, 1998) Lemotte's Lake Granite M2:A locally cut by mafic dykes, now amphibolite; layered

Local pods and dykes of pegmatitic hornblende diorite Pink, medium-grained granite with minor mafic phases gabbro and anorthositic gabbro, gradational with and N:O and fine-grained hornblende plagiogranite (tonalite) in Roebucks Brook intrusions and xenoliths (Kean and Mercer, 1981) related to anorthosite plutons (comp. Williams, 1985a) diabase dyke complexes; sheeted, medium- to coarse-

eO:L grained, pyroxene-hornblende gabbro, diorite, and fine- Quartz monzonite, granodiorite, quartz diorite, diorite lC:RB Early Mesoproterozoic to Early Cambrian to medium-grained, pyroxene-hornblende diabase; and gabbro (comp. Kean, 1982) Crippleback Lake Quartz Monzonite coarse- to very coarse-grained, layered pyroxenite Medium- to coarse-grained, locally porphyritic, quartz East Pond Metamorphic Suite monzonite and granodiorite; lesser amounts of medium- Psammitic and semipelitic schist and gneiss; migmatite, (comp. Whalen, 1993a) N:Cb CO:i Intermediate intrusive rock (O'Neill, 1991a) to coarse-grained gabbro and diorite (comp. Evans et al., M-C:E quartzofeldspathic gneiss and granitic gneiss; polymictic

King George IV Lake Complex 1994a) metaconglomerate (comp. Hibbard, 1983) Dark green, mafic pillow lava and minor pillow breccia;

intercalated mafic tuffs and green and red chert; fine- to Victoria Lake Supergroup Grole Intrusive Suite Late Paleoproterozoic to Early Mesoproterozoic medium-grained, commonly sheeted, diabase dykes; Mafic to felsic flows and pyroclastic volcanic rocks, Unseparated black and dark green to grey, medium- to Long Range gneiss complex eO:K medium-grained tonalite and trondhjemite; medium- pillow lava, and epiclastic volcanic rocks; greywacke, CO:V coarse-grained gabbro and grey, medium-grained, Mainly quartzo-feldspathic gneiss, including granitic- grained, equigranular, locally plagiophyric, gabbro; siltstone, shale and minor limestone lenses (Williams et N:Gi locally banded, quartz diorite and diorite; minor granodioritic, quartz dioritic, and tonalitic compositions; coarse-grained, melanocratic gabbro with local layering al., 1985) granodiorite and pink granite, the latter occuring mainly lesser amounts of amphibolite, and dioritic and mafic (comp. Kean, 1983) PM:L as net veins (O'Brien, 1998) gneiss; screens of paragneiss, including metacarbonate Spruce Brook Formation rocks, pelitic gneiss, and quartzite; metamorphosed in Annieopsquotch Complex Quartzitic sandstone, siltstone, shale and minor the amphibolite and granulite facies (comp. Owen, 1991) CO:S conglomerate; metamorphic and migmatitic equivalents N:b Dark grey, green, black, and black and white, medium- Basaltic pillow lava and minor red chert; sheeted diabase to coarse-grained and pegmatitic gabbro (O'Brien, 1998) dykes and rare trondhjemite and breccia dykes; massive (comp. Colman-Sadd, 1985a)

gabbro cut by diabase dykes and containing pods of eO:N Hardy's Cove granite trondhjemite and pegmatitic gabbro; layered Migmatitic, interbanded, sillimanite schist, amphibolite CO:gn clinopyroxene cumulates (comp. Dunning and Chorlton, and granitic gneiss (Colman-Sadd and Russell, 1988) Pink to orange, medium-grained, equigranular granite; 1985) N:Y buff to grey granodiorite and minor unseparated felsite;

grey to green, medium-grained diorite (O'Brien, 1998) Foliated, feldspar megacrystic to coarse grained Brighton gabbro CO:gm porphyritic and equigranular biotite granite and Harbour Breton Granite Coarse- to medium-grained hornblende clinopyroxenite granodiorite; migmatites and hornblendite, intruded by hornblende gabbro, Pink, medium- to coarse-grained, mainly equigranular, eO:BR hornblendite, diorite, quartz diorite, granodiorite and biotite granite; minor porphyritic hornblende granite, aplite (Kean et al., 1994b) Gander Group N:B fine-grained, plagiophyric monzogranite, and medium-

Mainly psammite with interbedded semipelite and to coarse-grained, porphyritic hornblende-biotite granite pelite, includes minor quartzite, mafic tuff, (comp. O'Brien, 1998) Glover Formation CO:G amphibolite and conglomerate. (Gradational Mafic and silicic volcanic rock and high level intrusions metamorphic contact with Square Pond Gneiss) eO:V with minor volcaniclastic sedimentary rock (Cawood Neoproterozoic to Early Ordovician and van Gool, 1998) Fleur de Lys Supergroup Hare Bay Gneiss Dominantly metaclastic schists with interlayered Late Cambrian to Late Ordovician Fine to medium grained, crudely layered tonalitic amphibolite and greenschist; the supergroup has been Bay du Nord Group CO:HB migmatite with amphibolite and paragneiss inclusions; polydeformed by up to three major deformations; N-O:F Volcanic-sedimentary unit of diverse lithology, with derived from Square Pond Gneiss metamorphism is in the upper greenschist or lower amphibolite facies, or locally in the middle amphibolite metamorphic rocks predominating; metamorphic rocks include psammitic and semipelitic schist, phyllite and facies (comp. Williams et al., 1985) CO:N graphitic schist, quartz-biotite schist, amphibolite and Square Pond Gneiss

migmatite; low grade parts consist of sandstone, Gray, fine grained psammitic and semipelitic Caribou Lakes gneiss complex siltstone, shale, conglomerate, and felsic volcanic rocks CO:SP parageniss and schist (”pinstripe” banding); locally Biotite-muscovite, migmatitic paragneiss and (comp. Williams et al., 1985) migmatitic. (Gradational contact with Hane Bay N-O:C granodioritic to quartz monzonitic orthogneiss; gneissic,

Gneiss along a migmatite front) biotite-amphibole granodiorite (Whalen, 1993a) Late Cambrian to Middle Ordovician

Wild Bight Group Early Cambrian to Middle Ordovician Little Passage Gneiss

Mafic lava and pyroclastic rocks, green bedded tuff, Western Arm Group Medium- to coarse-grained semipelitic and psammitic felsic lava and agglomerate, bedded chert and tuff, paragneiss and schist, and finer grained psammitic CO:W Submarine mafic to intermediate pillow lava, tuff, gneiss; tonalitic migmatite; massive and banded greywacke, tuffaceous greywacke, and gabbro sills agglomerate, and associated diabase and gabbro; minor (Williams et al., 1985) CO:E amphibolite, occurring especially as inclusions in felsic tuff; chert and argillite (comp. Williams et al., migmatite; the rocks contain amphibolite facies 1985) NO:L metamorphic assemblages, are intruded by unseparated Gander River Complex granite veins, and are locally mylonitic. Generation of Ophiolite complex that includes pyroxenite, serpentinite, Moretons Harbour Group migmatite is dated at 423 +5/-3 Ma using U/Pb in zircon magnesite, gabbro, talc/tremolite zones, mafic flows and (Colman-Sadd and O'Driscoll, 1979; Dunning et al., CO:X Mafic pillow lava, pillow breccia, aquagene tuff, mafic volcaniclastic rocks, trondhjemite and quartz porphyry CO:M to felsic dykes, and minor chert (comp. Williams et al., 1990) (comp. Williams et al., 1985) 1985) Neoproterozoic to Late Cambrian Great Bend Complex La Poile Basement Rocks (low grade) CO:m Diabase and foliated amphibolite, probably derived from Ophiolite complex consisting of ultramafic rocks, mafic dykes and intrusions into the Spruce Brook Grey and green-grey, thick- to thin-bedded, locally cross CO:GB including harzburgite and pyroxenite, gabbro, basalt and Formation (comp. Colman-Sadd, 1987) stratified, quartz-rich sandstone; green and grey, minor amphibolite (comp. various sources) laminated argillite and thin-bedded siltstone; quartz pebble conglomerate and polymictic cobble Early to Middle Cambrian Coy Pond Complex NC:A conglomerate; dark green, lithic tuff and minor mafic Twillingate pluton Ophiolite complex consisting of ultramafic rocks, agglomerate; blue quartz-bearing granodiorite and including harzburgite and pyroxenite, gabbro, Foliated to mylonitic, grey to pink, medium- to coarse- tonalite; granite porphyry; dark green, hornblende CO:C C:T grained tonalite and trondhjemite; contains lenses and gabbro and diorite; minor pyroxenite and diabase dykes plagioganite, diabase, basalt, and minor sedimentary rocks (comp. various sources) dykes of amphibolite (comp. Williams and Currie, 1995) (comp. O'Brien, 1990b)

Pipestone Pond Complex Sleepy Cove Group Neoproterozoic to Early Cambrian Ophiolite complex consisting of ultramafic rocks, Pillow lava, and local pillow breccia and massive flows; Cinq Cerf Gneiss including harzburgite and pyroxenite, gabbro, silicic and mafic tuff and agglomerate; includes Banded amphibolitic gneiss, lit-par-lit migmatite, CO:P unseparated intrusions of gabbro, diorite and quartz plagioganite, diabase, basalt, and minor sedimentary hornblendite and platy schist; subordinate hornblende C:S diorite; metamorphism has created chloritic and porphyry, metagabbro, granite porphyry and fine-grained rocks (comp. Swinden, 1988) NC:C amphibolitic assemblages in mafic rocks and the group equigranular granitoid; amphibolitic gneiss, schist and is deformed and schistose in most places (comp. Unnamed ophiolite (emplaced in Bay du Nord Group) agmatite screens; fine-grained, nebulitic granite sheets Williams and Payne, 1975) (O'Brien, 1990b) Metagabbro, layered metagabbro, metapyroxenite;

CO:OB metadiabase and volcanic rocks; genetically related amphibolite (Chorlton, 1980b) Lushs Bight Group Grey River Enclave Mafic volcanic rocks, principally pillow lavas, and Granitic and granodioritic gneiss; hornblende-biotite sheeted mafic dykes; lesser amounts of pillow breccia, Unnamed ophiolite (Exploits Subzone) C:L schist, migmatite, agmatite and amphibolite; semipelitic, tuff, agglomerate and chert; small gabbro intrusions and pelitic and psammitic schist and phyllite, and felsic Ultramafic rocks, gabbro, trondhjemite, diabase, ultramafic bodies (comp. various sources) NC:G metavolcanic rocks; gabbro and prekinematic quartz CO:O volcanic and sedimentary rocks of the ophiolite suite veins; gneiss is dated by U/Pb zircon at 686 +33/-15 Ma (comp. various sources) Lushs Bight Group? and metavolcanic rocks at 544 +/- 5 Ma (comp. Dickson Magnesite, talc-carbonate, actinolite-tremolite (altered et al., 1996a; comp. Dunning and O'Brien, 1989) C:L? Unnamed ophiolite (emplaced in Gander Zone) ultramafic rock) (Kean et al., 1994b) Ultramafic and gabbroic rocks occurring as small bodies CO:Og locally within the Gander Zone and presumed to be tectonically emplaced (comp. various sources)