USGS Professional Paper 1697 - Alaska Resources Library

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Table 3—Continued Metallogenic Belt Major Mineral Deposits Types. Environment and Tectonic Event and (Abbreviation) (Signifi cant Mineral Deposits) Host Unit Comments Copper Mountain (South) (CMS) Belt started in Late Triassic. Guichon (GU) Belt started in Late Triassic. LATE JURASSIC METALLOGENIC BELTS (Oxfordian through Kimmerigian—163 to 144 Ma) (fi gs. 9, 10) Metallogenic Belts Formed Along Late Mesozoic Continental-Margin Transform Fault in Russian Southest Ariadny (AR) Zoned mafi c-ultramafi c Ti. (Katenskoe, Ariadnoe, Koksharovskoe) North Bureya (NB) Au-Ag epithermal vein and granitoidrelated Au deposits. (Pokrovskoe, Pioneer) Chersky-Argatass Ranges (CAR) Yasachnaya River (YS) Transform margin. Zoned mafi c-ultramafi c plutons intruding Samarka terrane. Transform-margin-related intrusion of mafi c-ultramafi c plutons along major continental-margin transform faults that formed after accretion of Samarka subduction zone terrane. Belt may have extended into Early Cretaceous. Metallogenic Belts Formed in Late Mesozoic Continental Margin and Island Arc Systems in Russian Far East kuroko massive sulfi de. (Khotoidokh) Pb-Zn skarn, porphyry Cu. (Kunarev, Terrassnoe, Datsytovoe) Oloy (OL) Porphyry Cu-Mo, Au-Ag epithermal vein. (Peschanka, Vesennee) Pekulney (PK) Basaltic Cu. (Skalistaya) Tamvatney-Mainits (TAM) Podiform Cr. (Krassnaya Gora) Continental-margin arc. Umlekan-Ogodzhin volcanicplutonic belt. Island arc. Indigirka-Oloy volcanic-plutonic assemblage. Island arc. Uyandin-Yassachny volcanicplutonic belt. Island arc. Oloy volcanic belt. Oceanic crust. Pekul’ney subduction-zone terrane. Island arc. Zoned mafi c-ultramafi c plutons in Mainitskiy terrane. Subduction-related granitic plutonism that formed the Umlekan continentalmargin arc. Subduction-related volcanism associated with Uyandina island arc. Belt extended into Middle Jurassic. Subduction-related volcanism associated with Uyandina island arc. Subduction-related granitic plutonism that formed the Oloy island arc. Belt extended into Early Cretaceous. Primitive island arc and neighboring sea-fl oor environment. Subduction-related intrusion of mafi c-ultramafi c plutons into basal part of Mainitskiy island arc. Mafi c-ultramafi c rocks hosting deposits form part of structurally-complex ophiolite at base of Mainitskiy island arc terrane. Belt extended into Early Cretaceous Massive sulfi de deposition associated with Mainitskiy island arc. Belt extended into Early Cretaceous. Subduction-related granitic plutonism that formed the Svyatoy-Nos island arc. Subduction-related intrusion of mafi c-ultramafi c plutons into basal part of Kony-Murgal island arc. Mainits (MA) Kuroko massive sulfi de. Island arc. (Ugryumoe) Mainitskiy terrane. Svyatoy-Nos (SVN) Au-Ag epithermal vein. Island arc. (Polevaya) Svyatoy-Nos volcanic belt. Kuyul (KUY) Podiform Cr-PGE. Island arc. (Talov, Tikhorechen) Talovskiy terrane. Metallogenic Belts Formed in Late Mesozoic Koyukuk and Togiak Island Arc Systems in Western and Southwestern Alaska Eastern Seward Podiform Cr; serpentinite-hosted Island arc. Subduction-related intrusion of mafi c-ultramafi c plutons into basal part of Peninsula and asbestos. Thrust slices of mafi c-ultramafi c Koyukuk island arc. Marshall (ESM) (No signifi cant deposits) rocks, upper Angayucham Mafi c-ultramafi c rocks hosting deposits form upper, thrust-slice part of terrane. Angayucham subduction zone terrane. 354 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 Kobuk (KB) Podiform Cr; serpentinite-hosted Island arc. Subduction-related intrusion of mafi c-ultramafi c plutons into basal part of asbestos. Thrust slices of mafi c-ultramafi c Koyukuk island arc. (Iyikrok Mountain, Avan, Misheguk rocks, upper Angayucham Mafi c-ultramafi c rocks hosting deposits form upper, thrust-slice part of Mountain, Siniktanneyak Mountain) terrane. Angayucham subduction zone terrane. Southwestern Alaska Zoned mafi c-ultramafi c PGE. Island arc. Subduction-related intrusion of mafi c-ultramafi c plutons into basal part of (SWA) (Kemuk Mountain, Red Mountain) Goodnews terrane. Togiak island arc. Mafi c-ultramafi c rocks hosting deposits occur in tectonically linked Goodnews subduction zone terrane. Yukon-River (YR) Podiform Cr. Island arc. Subduction-related intrusion of mafi c-ultramafi c plutons into basal part of (Caribou Mountain, Lower Kanuti River, Thrust slices of mafi c-ultramafi c Koyukuk island arc. Holonada) rocks, upper Angayucham Mafi c-ultramafi c rocks hosting deposits form upper, thrust-slice part of terrane. Angayucham subduction zone terrane. Metallogenic Belts Formed in Late Mesozoic Gravina Island Arc in Southern and Southeastern Alaska, and Canadian Cordillera Eastern-Southern Porphyry Cu, porphyry Cu-Mo. Island arc. Subduction-related granitic plutonism that formed the Gravina island arc on Alaska (ESA) (Pebble Copper, Orange Hill, Bond Gravina-Nutzotin-Gambier the Wrangellia superterrane. Creek) belt, Wrangellia sequence, Wrangellia superterrane. Belt continued into Early Cretaceous. Klukwan-Duke (KL) Zoned mafi c-ultramafi c Ti-Cr-PGE. Island arc. Subduction-related mafi c-ultramafi c plutonism associated with basal part of (Union Bay, Klukwan, Haines) Gravina-Nutzotin-Gambier Gravina island arc on the Wrangellia superterrane. belt, Wrangellia sequence, Wrangellia superterrane. Belt continued into Early Cretaceous. Metallogenic Belts Formed in Late Mesozoic Collision and Overthrusting in Eastern Alaska and Canadian Cordillera Fortymile (FM) Serpentinite-Hosted Asbestos. Collisional. Regional metamorphism occurring during obduction and overthrusting (Slate Creek, Clinton Creek) Alteration of ultramafi c rock, of oceanic lithosphere of Seventymile terrane onto the North American Seventymile terrane. Craton Margin. Cassiar (CS) Serpentine-hosted asbestos. Collisional. Regional metamorphism occurring during obduction and overthrusting of Cassiar (McDame) Alteration of ultramafi c rock, oceanic lithosphere of Slide Mountain onto the North American Craton Slide Mountain terrane. Margin. Francois Lake (FL) Porphyry Mo. Collisional. Anatectic granitic plutonism associated with obduction of Stikinia- (Endako) Francois Lake plutonic suite. Quesnellia island arc and associated subduction zone complexes onto the North American Craton Margin. Cariboo (CB) Au quartz vein. Collisional. Regional metamorphism occurring during obduction and overthrusting of (Cariboo Gold Quartz, Frasergold) Veins in Downey Creek Kootenay, Stikinia-Quesnellia arc island and associated subduction zone Formation of Kootenay terrane. complexes onto the North American Craton Margin. Belt continued into Early Cretaceous. Rossland (RL) Au-Ag polymetallic vein. Collisional. Anatectic granitic plutonism associated with obduction of Stikinia- (Rossland, Sheep Creek, Ymir Erie Veins in Nelson plutonic suite. Quesnellia island arc and associated subduction zone complexes onto the Creek). North American Craton Margin. Island Porphyry (IP) Continuing Metallogenic Belt Belt started in Early Jurassic and ceased in early Late Jurassic. Appendix 355
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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
Page 295 and 296:
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
Page 327 and 328:
Debari, S.M., and Coleman, R.G., 19
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U.S. Bureau of Land Management Open
Page 331 and 332:
Cordilleran Orogen in Canada: Geolo
Page 333 and 334:
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 385: 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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