DEASE LAKE - LITTLE TUYA RIVER GEOLOGY QUEST-NORTHWEST PROJECT NTS SHEETS 104J/08, 07E Location Map

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DEASE LAKE - LITTLE TUYA RIVER GEOLOGY QUEST-NORTHWEST PROJECT NTS SHEETS 104J/08, 07E Location Map Disclaimer: While every effort has been taken to ensure the accuracy of the information in this map, the data are provided on an 'as-is' basis, without any warranty, guarantee or representation of any kind, whether expressed or implied. It is the responsibility of the user to check the facts before entering any financial or other commitment based upon this information. 1:50 000 DEASE LAKE - LITTLE TUYA RIVER GEOLOGY QUEST-NORTHWEST PROJECT NTS SHEETS 104J/08, 07E Location Map 400000 130°40'W 130°35'W 410000 30' 130°25'W 420000 130°20'W 15' 430000 130°10'W 130°5'W 440000 A YUKO ) ) N TERRITORY ( ) ) 0 1 ) 0 Ï ) 3 ( ) ) ) 3 ! 44 0 ) ) 57 ( ) ) ) 1 55 ! 0 ) JIs ( ) ) ) ) Ï U K i n g ) 28 . ) 65 ) 46 D e a s e 65 S ) ( ! . ) ! ( 40 L a k e A ) ) ) ( F 54 . Dease Lake ) ) % ! ) ) ) Ï ( ( Ï ) ) 70 51 ) ) ! 50 ( T Ï ) ) ( a ) 35 fp 34 t ) ) LJqfp ( q ! s ) ) ) ) ! ( J h ( L 9 o 0 A 0 63 0 L ! BRITISH COLUMBIA 0 C 4 ! 75 ( ( r B 1 67 e A e k E 60 p 80 ( Ï 1 JIs f ! 0 R ! 75 ! q ( 56 0 ! J 0 Map Area L ( ! Qal T A 60 60 Ï 44 ! ! ( ( 0 18 0 ø A Ï 4 ! ( JIs 44 38 22 66 eJTcs 1 55 70 ( Ï ! 70 ( 68 65 70 1 40 68 0 7 ( Ï 0 ( 24 Ï ! Ï 0 104J 064 ( PzTrCClw 63 q ! 50 ! Ï 42 Qal ! ( 30 7 P(zTrCC(lw 66 ! 60 Ï ! Prince ( ( Ï 20 Ï 60 ! ( 46 George k Ï 73 Ï Ö 88 e 104K 154 eJTcs ( PzTrCCum Ï Ï k ( ! e e Ï E ( Ï 0 74 r e Ï 15 0 ( ø r 44 7 43 ! 1 l 20 ) C Ï 15 55 C ! C ) 17 ( C ) r 83 k 52 zT l 85 ) 30 s P C c 85 40 ) Ï s ( rC S Ï Ï a ! P o o Ï Ï T l ) 37 z m MPlTv 1 (! 1 PaSPgd ) Ï a s P 65 o R ( n 0 c ) 0 s ) 8 i 1 ( Ï PzTrCCv Qal 0 f e 8 i ) 0 0 81 c k ( 0 0 70 ! 64.5±0.3 Ma ) 104J 014 Ð 0 O c ( 80 47 8 1200 ) Ï 57 c "S ( ) 4 M ½ e ½ Re H 6 ½ ( ) ½ PzTrCCl 40 a ½ ( ½ *, 1 ½ ( ! 46 ½ 60 n 5 ( o ½ p ( ! Ï ½ Ï ½ ( 66 f 63.5±0.4 Ma 0 ( ½ ( ½ 0 t ½ q Z Ï ½ ( ½ ( J *, ( ( ( 1(52.0±1(.1 Ma ( 1 Ò lTrSc e ! 17 ( 0 Vancouver ½ ½ ( ( ( Z 62 ( A. L 0 . S. ! 0 ( U ! ( ( ( *, ( C 41 ( ( ( ( A ( 0 0 eJTcs (( ( 45 r e 0 lTrS? 58 ( e 0 PzTrCClw k B ( ( VICTORIA 8 lTrSc Ï ( ( ( ( Ï \ Ï ( ( Ï 28 4 lTrSpp (33 (40 ( ( ( Ö ( ( Ï S Ï 6 PzTrCClw 3 ( ( ( ( ( lTrSc 3 ½ i ½ ( ( ½ F ( 46 ½ x a 40 ½ 45 u ! ½ l 89 ½ PzTrCClw t 54 ½ JIs ½ 73 t 84 65 ½ ) 3 ) ½ Ï ) ) ! ½ e Ï ½ ! ½ ) ) ½ 60 e ½ 0 ) ) 0 7 25 ½ ½ n ) 6 ) ) 40 ) 1 7 ! M 0 ) 56 110 ) 7 ) i l p ! ) e f 35 eJTl ! q Dease ) C Ï ) r e J 1 e ) k Ï L ) Lake 5 Ï 66 !P 0 lTrSc ) eJTcg lTrSc ) 0 ) Previous Mapping in the Region ½ !P ½ ) ½ ½ 25 ½ ½ ½ ! ½ 37 ½ ) A ) JIs ½ 40 Ï 48 ) ½ Ï ½ ) ) ½ ½ A Ï ½ ½ lTrSc 132°W 130°W 128°W Ð ½ ! ½ ) lTrSpp 55 ! ! 52 61 ! 60 65 85 )JIs 25 35 24 ! ! 50 lTrSpp Ï ! 56 ! B 0 0 0 65 1 ½ ½ ½ ½ ½ ½ ½ 30 74 ½ ½ ½ ! ½ 0 ½ ½ ½ Ï 0 ½ ½ 8 ½ ½ Ï 55 ! lTrScg rt 3 27 po 16 25 eJTcs ir 45 A 48 1 Ï 90 A 1 6 eJTcg 3 eJTcg 2 0 0 0 75 ½ 0 Ï ½ ½ 63 ½ F Dease E E E ½ E E E E E 58°25'N 58°25'N ½ ½ !P ½ *, ½ ½ F 3 ½ Lake ½ ½ Â 3 40 *, ½ ½ ½ ½ ½ ½ ½ ½ ½ 3 3 Ï ! Golden 34 #* #* Major mineral deposits 40 Bear Gnat 34 Ð #* 50 6 lTrScg Ï Pass 0 ! r Kutcho 0 Parks 0 0 #* 54 8 e 26 Ö 5 Ï 60 75 70 Creek 1 0 v ½ 58°N ½ 0 ½ 3 i 8 ½ 1 ½ 1 0 ½ This study ½ ½ 0 ½ ½ R ! ½ ½ 48 ½ ½ ½ 25 ½ 46 ½ ½ ½ ½ Ï Telegraph ½ ½ ! ! a !P 58°N 19 60 q l Previous Mapping ! Ö l Creek 23 lTrScg i Ï 20 z !P Iskut Moynihan and Logan, 2012 lTrS ! n ! 21 a 35 ! 53 20 ! T ½ 67 Red ½ ! ½ van Straaten et al., 2012 ½ ½ #* ½ Ma ½ 80 179.5±1.8 ½ ½ Ar #* GJ Chris ½ ½ ½ ½ lTrSpx *, 0 ½ ½ 0 ½ 2 ½ ½ 1 Anderson, 1983 ½ ½ ½ ½ 35 22 ! ! 32 40 Ash et al., 1997 ! 45 20 ! ! ! #* Schaft lTrSpx Ï eJTcg ! Creek Brown et al., 1996 ½ 37 lTrS ½ ½ ½ Ð ½ ½ B ½ ½ ½ ½ 30 ½ 40 ½ d l e ! Ï Evenchick and Thorkelson, 2005 ½ i ½ h C ½ c r e ½ g u s e k 75 87 86 Galore u 17 ! #* A ! ! Creek ! Gabrielse, 1998 30 Read, 1983, 1984 8 37 0 0 65 ½ ½ ½ ½ ½ ½ ½ ½ 0 Qal Read and Psutka, 1990 ½ 72 Ï 0 ½ 8 ½ 132°W 130°W 128°W ½ ½ ½ Ï MPlTv ½ ½ !P #* #* ½ Qal Note: Outcrops are shown with a darker shade ½ 0 13 ½ 0 ½ 0 ½ ½ 0 ½ ½ ½ 38 0 ½ 7 MPlTv ½ #* ½ 0 ½ PLEISTOCENE AND RECENT ! 0 0 ½ ½ ½ 7 35 4 ! Unconsolidated glacial, lacustrian, alluvial and colluvial material. 6 Qal 65 lTrSpp Ï Ò 20 MIOCENE TO PLEISTOCENE ! 0 Ï 30 0 ½ Tuya Formation ½ 0 ½ ½ ½ 0 ½ ½ Ï ½ ½ Alkali olivine basalt; grey to brown coloured, columnar-jointed. Yellowish green, mm-size phenocrysts of olivine and vitreous plagioclase ! 7 ½ ½ ½ 4 ½ ½ MPlTv ½ 75 ½ in a fine grained groundmass. 6 Û 30 47 42 ! ! 7Ï 8 ! 66 38 Ï ! F EOCENE Qal 65 44 75 ! *, 30 1 Tanzilla Canyon Formation 3 35 ! lTrSvs ! 45 55 ! 0 62 ! 0 ! 40 Poorly consolidated conglomerate, sandstone and mudstone; marl and lenses of high-volatile B bituminous coal. ½ ½ ETCcg T ½ 36 ½ ½ q ½ ! ½ ! ½ ! 27 lTrScg ½ u ½ ½ 10 MJHgd 40 ½ # ½ ½ ½ 34 y ½ ! PALEOCENE MPlTv a ! ! lTrSpp I 1200 20 Snow Peak pluton R t s q ! 104J 013 65 30 ! i 70 ! i l "S Biotite-K-feldspar plagioclase monzonite to syenite; pink weathering, equigranular to porphyritic Laser ablation U-Pb zircon l i lTrScg q lTrSvs 35 PaSPgd v t u 60 70 Ï 46 crystallization age of 63.5±0.4 Ma; Re-Os molybdenite age for mineralization of 64.5±0.3 Ma. A lTrSvs ! e C ½ ½ 900 ½ ½ r ½ ½ ½ ½ ½ ½ ½ ½ LATE JURASSIC r 166.5±0.7 Ma ½ ½ ½ ½ ½ ½ ½ ½ ½ e ½ ½ ½ MJHsy 75 ½ ½ e Dikes and sills of quartz-hornblende-plagioclase porphyry (QFP); cross cut folded and foliated sedimentary rocks of the Takwahoni 70 *,Z Ï lTrScg LJqfp k q Formation, the King Salmon Fault and mafic volcanic rocks of Cache Creek Terrane. Laser ablation U-Pb zircon crystallization age of 212.2±1.8 Ma TrJgb *,Ar 152.0±1.1 Ma. 58°20'N E E E E lTrScg E lTrSpp E E E 58°20'N ½ lTrSmv ½ ½ STIKINE TERRANE ½ ½ ½ 1 ½ ½ ½ ½ 1 ½ ½ ½ ½ ½ 0 ½ ½ 0 ½ ½ ½ ½ MIDDLE JURASSIC ½ ½ 3 ½ 60 Hluey Lake pluton 1 C 10 y r 0 e e e Biotite-K-feldspar-plagioclase monzonite to syenite; pink weathering, equigranular to porphyritic. Laser ablation U-Pb zircon u k MJHsy l crystallization age of 166.5±0.7 Ma and an incongruous older Ar-Ar biotite cooling age of 212.2±1.8 Ma. H 78 1 ½ 2 Biotite-hornblende granodiorite; medium grained, equigranular to weakly foliated at eastern margin. ½ Ï ½ ½ 0 lTrSpp ½ MJHgd ½ lTrSpp lTrSpp 0 ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ 54 ! Pallen Creek pluton 1 Ð 0 F lTrSvs 80 0 Biotite-hornblende quartz monzonite to monzodiorite; equigranular to locally K-feldspar megacrystic. Laser ablation U-Pb zircon *, 0 MJPm 40 H l u e y L a k e s crystallization age of 172.2±1.0 Ma. ! ! lTrSvs 32 34 ! q 63 ! 30 EARLY JURASSIC 60 ½ ½ A 30 ½ ! f ½ 75 ½ 39 f ½ q lTrSvs 32 ½ ! ! ½ ½ Takwahoni Formation ½ ½ Ð ½ ½ 9 ½ ½ 00 r 45 ½ ½ ½ ½ ½ ½ e ½ ½ lTrSw ½ ½ ! Undivided sandstone, siltstone, mudstone, greywacke and conglomerate; dark grey to orange weathering, calcareous matrix. v 1300 80 eJTcs i 70 q 40 15 55 48 Ï ! 88 ! R TrJgd eJTl Limestone, sandy limestone. The mapped occurrence of this unit is too small to be visible at this scale. The occurrence is denoted by lTrS a F lTrSw outcrop location (x). l TrJgb *, i l 00 n z lTrSw 12 80 Basal unit of coarse polylithic conglomerate, coarse sandstone and lesser siltstone. ! eJTcg ! ½ a 85 Ï ½ 104J 036 ½ ½ ½ ½ ½ ½ T ! ½ 80 TRIASSIC TO JURASSIC lTrSw lTrSw lTrSw White weathering, equigranular to porphyritic hornblende-plagioclase monzodiorite to granodiorite; acicular 1-8 mm hornblende Ï 0 TrJgd 0 1 TrJgd crystals±biotite in a fine grained feldspar matrix. 75 1 v T r Pyroxenite, hornblende gabbro, diorite and monzodiorite intrusive complex; high magnetite content of intrusions is reflected by high T TrJgb m 32 ! ½ magnetic susceptibility and corresponding high aeromagnetic signature. ½ ½ 0 45 0 ! 0 0 2 Ï 0 1 1 70 LATE TRIASSIC 3 60 70 0 lTrSvs 0 Ï B Ï Stuhini Group 4 1 ½ ½ ½ ½ 35 ½ Undivided coherent volcanic flows, clastic and sedimentary rocks. mTrTv S i t s a lTrS 0 0 L a k e 6 ! Mafic volcanic-dominated polylithic conglomerate, sandstone and greywacke; massive, rarely bedded, weathers orange and includes ! mTrTv lTrScg 172.2±1.0 Ma 1 lTrSpp 3 ! rare augite phyric basalt flows. ! 0 0 0 0 Z 0 0 ! Ï 3 *, 0 Augite±plagioclase phyric basalt; primarily thick monomict breccias, massive coherent flows and rare pillowed forms, 4-10 mm euhedral 1 ( 67 ! lTrSpx Qal 0 6 black augite phenocysts in a pale green finer grained groundmass.
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