USGS Professional Paper 1697 - Alaska Resources Library

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Table 3—Continued LATE TRIASSIC METALLOGENIC BELTS (Carnian through Norian—230 to 208 Ma) (fi gure 7) Metallogenic Belt Formed During Early Mesozoic Rifting? in Alaskan Passive Continental-Margin Terranes Metallogenic Belt Major Mineral Deposits Types. Environment and Tectonic Event and (Abbreviation) (Signifi cant Mineral Deposits) Host Unit Comments Farewell (FW) Gabbroic Ni-Cu-PGE. Rifting? Incipient rifting of Dillinger and adjacent passive continental margin (Farewell district) Dillinger terrane. terranes? Metallogenic Belts Formed in Middle Mesozoic Talkeetna-Bonzana Island Arc in Wrangellia Superterrane Kodiak Island and Podiform Cr. Island arc. Subduction-related intrusion of mafi c-ultramafi c plutons into basal part of Border Ranges (Halibut Bay, Claim Point, Red Border Ranges mafi c-ultramafi c Talkeetna-Bonzana island arc in Wrangellia superterrane. (KOD) Mountain, Bernard Mountain, Dust Mountain) assemblage Metallogenic belt extended into Early and Middle Jurassic. Eastern Alaska Range Gabbroic Ni-Cu. Back-arc rifting? Back-arc rifting associated with Talkeetna part of Talkeetna-Bonanza island (EAR) (equivalent (Fish Lake, Wellgreen) Nikolai Greenstone, Wrangellia arc in Wrangellia superterrane. to Kluane-Nikolai Besshi massive sulfi de sequence, Wrangellia Alternative interpretation of hot spot (oceanic plume). belt) (Denali) Strataform gypsum (Bullion Creek) superterrane Alexander (AX) Cyprus massive sulfi de, Kuroko massive Back-arc? Back-arc rifting associated with Bonanza part of the Talkeetna-Bonanza sulfi de, bedded barite. Nikolai Greenstone and island arc in Wrangellia superterrane. (Windy Craggy, Greens Creek, Castle equivalent units, Wrangellia Alternative interpretation of hot spot (oceanic plume). Island, Kupreanof Island, Haines) sequence, Wrangellia super terrane. Metallogenic Belts Formed in Middle Mesozoic in Stikinia-Quesnellia Island Arc Galore Creek (GL) Porphyry Cu-Au. Island arc. Subduction-related granitic plutonism that formed the Stikinia-Quesnellia (Galore Creek, Red Chris) Stikinia & Quesnellia terranes. island arc. Belt continued into Early Jurassic. Sustut (SU) Basaltic Cu Island arc. Formation in the upper oxidized parts of the Stikinia-Quesnellia island arc (Susut) Stikinia terrane. volcanic pile during shallow burial metamorphism and diagenesis. Copper Mountain Porphyry Cu-Au, porphyry Cu-Mo. Island arc. Subduction-related granitic plutonism that formed the Quesnellia island arc. (North) (CMN) (Lorraine, Mount Mulligan) Stikinia & Quesnellia terranes. Belt continued into Early Jurassic. Copper Mountain Porphyry Cu-Au. Island arc. Subduction-related granitic plutonism that formed the Quesnellia island arc. (South) (CMS) (Copper Mountain, Ingerbelle, Iron Mask, Mount Polley) Quesnellia terrane. Belt continued into Early Jurassic.. Guichon (GU) Porphyry Cu-Mo-Au, Au skarn. Island arc. Subduction-related granitic plutonism that formed the Quesnellia island arc. (Highland Valley district, Brenda, Gibraltar, Craigmont, Hedley) Quesnellia terrane. Belt continued into Early Jurassic. Texas Creek (TC) Porphyry Cu-Mo-Au, polymetallic vein. Island arc. Subduction-related granitic plutonism that formed the Stikinia island arc. (Schaft Creek, Kerr, Sulphurets, Snip, Red Mountain, & others) Stikinia terrane. Belt continued into Early Jurassic. 352 Metallogenesis and Tectonics of the Russian Far East, Alaska, and the Canadian Cordillera
Table 3—Continued Metallogenic Belt (Abbreviation) Alaska Peninsula (AP) Talkeetna Mountains- Alaska Range (TM) EARLY JURASSIC METALLOGENIC BELTS (Hettangian through Pleinsbachian—208 to 193 Ma) (fi gure 8) Metallogenic Belts Formed in Middle Mesozoic in Talkeetna-Bonzana Island Arc in Wrangellia Superterrane Major Mineral Deposits Types. Environment and Tectonic Event and (Signifi cant Mineral Deposits) Host Unit Comments Cu & Fe skarn. Island arc. Subduction-related granitic plutonism that formed the Talkeetna part of the (Crevice Creek, Glacier Fork, Kasna Granitic plutons Peninsular Talkeetna-Bonanza island arc in Wrangellia superterrane. Creek, Magnetite Island) sequence, Wrangellia superterrane. Metallogenic belt may have extended into Middle Jurassic. Kuroko massive sulfi de. (Johnson River) Island Porphyry (IP) Porphyry Cu-Mo, Cu skarn, Fe skarn. (Island Copper, Tasu, Jedway, Burnaby Iron) Island arc. Talkeetna Formation, Peninsular sequence, Wrangellia superterrane. Island arc. Wrangellia superterrane. Subduction-related marine volcanism associated with Talkeetna part of Talkeetna- Bonanza island arc in Wrangellia superterrane. Subduction-related granitic plutonism that formed the Bonanza part of the Talkeetna-Bonanza island arc in Wrangellia superterrane. Belt continued into early Late Jurassic. Metallogenic Belts Formed During Middle Mesozoic in Stikinia Island Arc Klotassin (KL) Porphyry Cu-Au-Ag. Island arc. Subduction-related granitic plutonism that formed the Stikinia island arc. (Minto Creek, Williams Creek) Stikinia and Yukon-Tanana terranes. Toodoggone (TO) Au-Ag epithermal vein and porphyry Cu-Au. Island arc. Subduction-related granitic plutonism that formed the Stikinia island arc. (Lawyers, Chappelle, AI, Kemess) Stikinia terrane. Coast Mountains Kuroko massive sulfi de, Besshi massive Island arc. Subduction-related, back-arc volcanism associated with Stikinia island (CM) sulfi de) Stikinia terrane arc. Three periods of deposit formation, middle and late Paleozoic, Late (Eskay Creek, Dolly Varden, North Star, Granduc, Anyox) Triassic, and Early Jurassic. Texas Creek (TC) Continuing Metallogenic Belts Belt started in Late Triassic. Galore (GL) Belt started in Late Triassic. Copper Mountain (North) (CMN) Belt started in Late Triassic. Copper Mountain (South) (CMS) Belt started in Late Triassic. Guichon (GU) Belt started in Late Triassic. MIDDLE JURASSIC METALLOGENIC BELTS (Toarcian through Callovian—193 to 163 Ma) (fi gure 8) Continuing Metallogenic Belts Talkeetna Mountains (TM) Belt started in Early Jurassic. Alaska Peninsula (AP) Belt started in Early Jurassic. Island Porphyry (IP) Belt started in Early Jurassic. Klotassin (KL) Belt started in Early Jurassic. Texas Creek (TC) Belt started in Late Triassic. Galore (GL) Belt started in Late Triassic. Toodoggone (TO) Belt started in Early Jurassic Coast Mountains (CM) Belt started in Early Jurassic Copper Mountain (North) (CMN) Belt started in Late Triassic. Appendix 353
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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
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 383: 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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