USGS Professional Paper 1697 - Alaska Resources Library

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Table 3—Continued Metallogenic Belt (Abbreviation) Verkhne–Kolyma zone (EAVK), Eastern Asia-Arctic Metallogenic Belt Vostochno- Verkhoyansk zone, (EAVV), Eastern Asia-Arctic Metallogenic Belt Adycha-Taryn (EAAT) zone, Eastern Asia-Arctic Metallogenic Belt Omsukchan zone (EAOM), Eastern Asia-Arctic Metallogenic Belt Chokurdak zone (EACD), Eastern Asia-Arctic Metallogenic Belt Chaun zone (EACN), Eastern Asia-Arctic Metallogenic Belt Major Mineral Deposits Types. (Signifi cant Mineral Deposits) Sn-Ag polymetallic vein, Rhyolite-hosted Sn, granitoid-related Au. (Tigrets-Industriya, Kandychan, Butugychag) Ag polymetallic vein, clastic sedimenthosted Hg. (Mangazeika, Menkeche) Clastic-sediment-hosted Sb-Au, Au-Ag epithermal vein, Ag-Sb polymetallic vein. (Ak-Altyn) Au-Ag epithermal vein, Sn polymetallic vein, silicate-sulfi de, porphyry Sn, porphyry Cu-Mo, & others. (Nevskoe, Mechta, Dukat). Sn polymetallic vein, Sn greisen. (Deputatskoe, Churpuunaya) Sn polymetallic vein, Sn greisen, Sn skarn, Sn porphyry, granitoid-related Au. (Valkumei, Chechekuyum, Kanelyveen, Iultin, Svetloe) Environment and Host Unit Continental-margin arc. Okhotsk-Chukotka volcanicplutonic belt. Continental-margin arc. Back arc part of Okhotsk- Chukotka volcanic-plutonic belt. Continental-margin arc. Transverse extension of Okhotsk-Chukotka volcanicplutonic belt. Continental-margin arc. Okhotsk-Chukotka volcanicplutonic belt. Island arc. Svyatoy-Nos volcanic belt. Continental-margin arc. Okhotsk-Chukotka volcanicplutonic belt. Tectonic Event and Comments Subduction-related volcanism associated with Okhotsk-Chukotka continental-margin arc. Orthogonal branch of Okhotsk-Chukotka volcanic-plutonic belt. Belt continued into Late Cretaceous. Zone part of Eastern Asia metallogenic belt. Subduction-related magmatism associated with back-arc part of Okhotsk- Chukotka continental margin arc. Belt continued into Late Cretaceous. Zone part of Eastern Asia metallogenic belt. Subduction-related magmatism associated with back-arc part of Okhotsk- Chukotka continental margin arc. Belt continued into Late Cretaceous. Zone part of Eastern Asia metallogenic belt. Subduction-related granitic plutonism that formed the back-arc part of Okhotsk-Chukotka continental-margin arc. Orthogonal branch of Okhotsk-Chukotka volcanic-plutonic belt. Zone part of Eastern Asia metallogenic belt. Subduction-related granitic plutonism that formed the back-arc part of Okhotsk-Chukotka continental-margin arc.. Subduction-related granitic plutonism that formed the Okhotsk-Chukotka continental-margin arc. Correlated with Seward Peninsula metallogenic belt. Belt continued into Late Cretaceous. Zone part of Eastern Asia metallogenic belt. Metallogenic Belt Formed During Late Mesozoic Collision and Accretion of Chukotka Superterrane, Russian Northeast Chukotka (CH) Au quartz vein, Sn polymetallic vein. (Karalveem, Ozernoe) East-Central Alaska (older part) (ECA) (includes major part of Tintina gold belt) Yukon-Tanana Upland (YT) Collisional. Veins and granitic plutons in Chukotka terrane. Regional metamorphism and anatectic granitic plutonism associated with accretion of rifted Chukotka passive continental-margin terrane to Northeast Asia. Metallogenic Belts Formed in Late Mesozoic Collision and Accretion of Wrangellia Superterrane, Southern Alaska Granitoid-related Au, polymetallic vein, porphyry Cu, Sb-Au vein. (Democrat, Fort Knox, Pogo, Kantishna district, Manley-Livengood area) Au-quartz vein. (Purdy) Collisional Veins and granitic plutons in interior Alaska. Collisional. Veins in Yukon-Tanana terrane. Regional metamorphism and anatectic granitic plutonism mainly in Yukon- Tanana terrane associated with fi nal accretion of Wrangellia superterrane to North American continental margin. Belt started in late Early Cretaceous. Regional metamorphism and anatectic granitic plutonism mainly in Yukon- Tanana terrane associated with fi nal accretion of Wrangellia superterrane to North American continental margin. 360 Metallogenesis and Tectonics of the Russian Far East, Alaska, and the Canadian Cordillera
Table 3—Continued Metallogenic Belt Major Mineral Deposits Types. Environment and Tectonic Event and (Abbreviation) (Signifi cant Mineral Deposits) Host Unit Comments Wrangell Mountains Cu-Ag quartz vein, Kennecott Cu Collisional. Regional metamorphism and vein emplacement associated with accretion of (WR) (Kathleen-Margaret, Kennecott) Veins and replacements in Late Triassic Nikolai Greenstone and Ninzina Limestone, Wrangellia sequence, Wrangellia superterrane. Wrangellia superterrane to southern Alaska. Badzhal-Ezop-Khingan (BZ-KH) Continuing Metallogenic Belts Belt started in late-early Cretaceous. Selwyn (SW) Belt started in late Early Cretaceous. Cassiar (CA) Belt started in late Early Cretaceous. Whitehorse (WH) Belt started in late Early Cretaceous. Bayonne (BA) Belt started in late Early Cretaceous. Sergeevka (SG) LATE CRETACEOUS AND EARLY TERTIARY METALLOGENIC BELTS (Campanian through early Eocene—84 to 52 Ma) (fi gs. 15, 16) Continuing Metallogenic Belts Belt started in late Early Cretaceous. Taukha (TK) Belt started in late Early Cretaceous. Kema (KM) Belt started in late Early Cretaceous. Luzhinsky (LZ) Belt started in late Early Cretaceous. Lower Amur (LA) Belt started in late Early Cretaceous. Koryak Highlands (KH) Belt started in early Late Cretaceous and possibly extended into early Tertiary. Vatyn (VT) Belt started in early Late Cretaceous. Okhotsk zone (EAOH), Eastern Asia metallogenic belt Belt started in early Late Cretaceous. Adycha-Taryn (EAAT), Eastern Asia metallogenic belt Belt started in early Late Cretaceous. Verkhne–Kolyma zone (EAVK), Eastern Asia metallogenic belt Belt started in early Late Cretaceous. Korkodon-Nayakhan zone (EAKN), Eastern Asia metallogenic belt Belt started in early Late Cretaceous. Omsukchan zone (EAOM), Eastern Asia metallogenic belt Belt started in early Late Cretaceous. Chaun zone (EACN) Belt started in early Late Cretaceous. Metallogenic Belt Formed in Late Mesozoic and Early Cenozoic Olyutorka Island Arc, Russian Northeast Iruneiskiy (IR) Porphyry Cu Island arc. Subduction-related granitic plutonism that formed the Olyutorka- (Kirganik) Iruneiskiy terrane Kamchatka island-arc. Metallogenic Belts Formed in Late Mesozoic and Early Cenozoic Part of Okhotsk-Chukotka Continental-Margin Arc, Russian Northeast and Western Alaska Continuing Metallogenic Belt Vostochno-Verkhoyansk (EAVV), Eastern Asia metallogenic belt Belt started in early Late Cretaceous. Verkhne-Yudomsky Sn & Ag polymetallic vein. Continental-margin arc. Subduction-related granitic plutonism that formed the back-arc part of (Yuzhno-Verkhoyansk) (Zarnitsa-Kutinskoe, Khaardak) Back arc part of Okhotsk- Okhotsk-Chukotka continental margin arc. Zone part of Eastern Asia zone (EAVY), Chukotka volcanic-plutonic metallogenic belt. Eastern Asia-Arctic Metallogenic Belt belt. Appendix 361
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USGS Prepared in collaboration with
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U.S. Department of the Interior Gal
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iv Hart River SEDEX Zn-Cu-Ag Deposi
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vi Specific Events for Middle Throu
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viii Metallogenic Belts Formed Duri
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x Origin of and Tectonic Controls f
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xii Toodoggone Metallogenic Belt of
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xiv Slate Creek Serpentinite-Hosted
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xvi Left Omolon Belt of Porphyry Mo
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xviii Origin of and Tectonic Contro
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xx Chukotka Metallogenic Belt of Au
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xxii Plutonic Rocks Hosting East-Ce
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xxiv Skeena Metallogenic Belt of Po
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xxvi Bee Creek Porphyry Cu Deposit
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xxviii 36. Wellgreen gabbroic Ni-Cu
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xxx 87. Partizanskoe Pb-Zn skarn de
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Metallogenesis and Tectonics of the
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format (Nokleberg and others, 1996)
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logenesis of the region (1) subduct
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Subterrane—A fault-bounded unit w
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dilemma consists of two conflicting
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2 to 20 m thick. A related dolomite
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Lantarsky-Dzhugdzhur Metallogenic B
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Origin of and Tectonic Controls for
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Metallogenic Belts Formed During Pr
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as at Oz, Monster, and Tart, may al
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Monashee Metallogenic Belt of Sedim
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Clark Range Metallogenic Belt of Se
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in addition to the Fe deposits. Min
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study) consists of lenses, from 100
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Omulev Austrian Alps W Deposit The
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ock, including coarse clastic rock,
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lative metalliferous brines in a re
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Prince of Wales Island Metallogenic
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suite of deposits and host rocks ar
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margin of the North American Craton
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newly created terranes migrated int
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(Ryazantzeva and Shurko, 1992). The
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tonnes Au and an average grade of a
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mafic and felsic metavolcanic rocks
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intrusion from about 402 to 366 Ma
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mentary rocks of the Cambrian to De
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(Preto and Schiarizza, 1985; Schiar
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ate and clastic rocks and volcanicl
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(Nokleberg and others, 1994c, 1997c
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Berezovka River Metallogenic Belt o
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Finlayson Lake Metallogenic Belt of
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and barite in siliceous black turbi
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Windermere Creek (Western Gypsum) C
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(NX, DL, MY), Viliga (VL), and Zolo
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South of the main east-west-trendin
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ated subduction zone in the Wrangel
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icite-biotite-quartz bodies in frac
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Canada Cordillera. The granitoid ro
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Viliga (VL) passive continental-mar
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32; tables 3, 4) occurs along the n
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superterrane, consists mainly of ma
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ers, 1994c, 1997c). In southern Bri
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mental volcanic rocks of intermedia
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a resource of 34.3 million tonnes o
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potassic zone. Combined estimated p
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and quartz monzodiorite stock and s
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and Omolon (OM) cratonal terranes,
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in volcanic and volcaniclastic rock
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minor calcite, and sporadic pyrite
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supergene blanket are interpreted a
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deposits and occurrences consist of
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onto the Omulevka terrane to form t
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superterrane. This belt is interpre
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to form along the leading edge of t
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quartz, and is virtually not associ
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deposits are at Terrassnoe and Kuna
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Peschanka Porphyry Cu-Mo Deposit Th
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The belt is hosted in the Late Jura
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in a island arc that was tectonical
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and Early Cretaceous Koyukuk island
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The deposit consists of disseminate
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The Orange Hill deposit contains an
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49; tables 3, 4) (Foley and others,
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locally Late Triassic marine volcan
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gold in a gangue of quartz, calcite
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Verkhoyansk granite belt, which int
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metallogenic belts are interpreted
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assemblages, which may have been mo
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during hypogene and supergene alter
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collision and regional thrusting, t
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Yur Au Quartz Vein Deposit The smal
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phase has a Rb-Sr isotopic age of 1
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sian Northeast. The belt is hosted
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Host Granitoid Rocks and Associated
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that are up to 600-1,500 m long, av
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Metallogenic Belts Formed During La
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y partly coeval plutons that range
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tion is interpreted as occuring by
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the Badzhal-Ezop and Khingan parts
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and comagmatic with volcanic rocks;
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as interpreted for the Rock Creek d
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source (Yeo, 1992). The Blow River
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2000). The spatial location of the
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to the east in the central Yukon Te
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occur in a 30-km-long belt along ir
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The Emerald deposit has produced ap
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Metallogenic-Tectonic Model for Ear
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cham oceans were closed, and the Ch
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greisenized Mesozoic granite that i
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composition magmatic bodies (with a
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to Albian pelecypods (Nokleberg and
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quartz-arsenopyrite-pyrrhotite, pol
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thermally altered to siliceous and
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These ore bodies are as much as 1 m
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Eastern Asia-Arctic Metallogenic Be
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Demin, and Krasilnikov, 1974; Nekra
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10 percent Cu, as much as 0.92 perc
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pyrite, pyrite, galena, sphalerite,
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content decreases with depth, as do
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azdelnoye, (2) porphyry Sn deposits
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Karalveem Au Quartz Vein Deposit Th
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Democrat (Mitchell Lode) Granitoid-
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with high-temperature and high-pres
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chalcocite and covellite and also h
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cum-North Pacific, (2) completion o
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(6) In the Paleocene (about 56 to 6
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sists of cinnabar and metacinnabari
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Eastern Asia-Arctic Metallogenic Be
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groups of deposits are interpreted
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Indian Mountain and Purcell Mountai
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and southeastern Alaska (Moll and P
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Nokleberg and others, 1995a; Bundtz
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g/t Au or 368.2 Au gold. The deposi
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wim Group and altered mafic dikes.
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Mount Nansen porphyry Cu-Mo deposit
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A Map 450 500 550 Cross section Dik
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Cretaceous and early Tertiary conti
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deposits, at Chichagoff and Hirst-C
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others, 1994c, 1997c). The signific
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tonnes grading 0.53 percent Ni, 0.3
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with a 0.25 percent cut-off. The de
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Bulkley Metallogenic Belt of Porphy
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Red Rose W-Au-Cu-Ag Polymetallic Ve
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ish Columbia and consists of severa
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during back-arc extension or transt
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stocks and dikes, is associated wit
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etrograde minnesotaite (Fe talc), F
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Specific Events for Early to Middle
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of fractured and faulted Permian-Tr
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sists of a mineralized fracture zon
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dolomite. Wall rock alteration incl
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elt of late Tertiary plutons that a
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plates that exhibit magnetic anomal
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stages (Petrenko, 1999): (1) In the
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mon. The deposit is of medium size
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Metallogenic-Tectonic Model for Lat
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The origin of the Hg deposits of th
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margin or island-arc tectonic envir
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Columbia: Implicatons for the Middl
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Bazard, D.R., Butler, R.F., Gehrels
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Bradley, D.C., Haeussler, P.J., and
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Bundtzen, T.K., Laird, G.M., Caluti
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Cecile, M.P., 1982, The lower Paleo
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Debari, S.M., and Coleman, R.G., 19
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U.S. Bureau of Land Management Open
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Cordilleran Orogen in Canada: Geolo
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Goldfarb, R., Hart, C., Miller, M.,
Page 335 and 336:
Grove, E.W., 1986, Geology and mine
Page 337 and 338:
Høy, T., 1982a, Stratigraphic and
Page 339 and 340:
Jones, D.L., Silberling, N.J., Cone
Page 341 and 342: Kutyev, F. Sh., Baikov, A.I., Sidor
Page 343 and 344: Shield—Ultramafic magma and its m
Page 345 and 346: Manns, F.T., 1981, Stratigraphic as
Page 347 and 348: Miller, M.L., and Bundtzen, T.K., 1
Page 349 and 350: Mortimer, N., 1987, The Nicola Grou
Page 351 and 352: Noble, S.R., Spooner, E.T.C., and H
Page 353 and 354: Canada Annual Meeting, Saskatoon, S
Page 355 and 356: Perello, J.A., Fleming, J.A., O’K
Page 357 and 358: Far East—Mineralogical criteria f
Page 359 and 360: Roeske, S.M., Mattinson, J.M., and
Page 361 and 362: Schmidt, J.M., and Zierenberg, R.A.
Page 363 and 364: formation occurrences: Materialy po
Page 365 and 366: Struik, L.C., 1986, Imbricated terr
Page 367 and 368: Valuy, G., and Rostovsky, F., 1988,
Page 369 and 370: Wolfe, W.J., 1995, Exploration and
Page 371 and 372: Appendix Table 1. Mineral deposit m
Page 373 and 374: Table 2 Summary of correlations and
Page 375 and 376: Table 2—Continued Unit(s) and Cor
Page 377 and 378: Table 2—Continued Unit(s) and Cor
Page 379 and 380: Table 3—Continued Metallogenic Be
Page 391: Table 3—Continued Metallogenic Be
Page 399 and 400: Table 4. Significant lode deposits,
Page 401 and 402: Table 4—Continued Appendix 369 De
Page 403 and 404: Table 4—Continued Tracy Metalloge
Page 405 and 406: Table 4—Continued Appendix 373 In
Page 407 and 408: Table 4—Continued Deposit Name Mi
Page 409 and 410: Table 4—Continued Mainits Metallo
Page 415 and 416: Table 4—Continued Whitehorse Meta
Page 421 and 422: Table 4—Continued Appendix 389 LA
Page 425 and 426: Table 4—Continued Surprise Lake M
Page 427 and 428: Table 4—Continued Sredinny Metall
Page 429: Table 4—Continued Deposit Name Mi
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