USGS Professional Paper 1697 - Alaska Resources Library

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340 Metallogenesis and Tectonics of the Russian Far East, Alaska, and the Canadian Cordillera Table 1—Continued Deposit Group Related Deposit Models Deposits related to calc-alkaline and alkaline granitic intrusions Porphyry and Granitic Plutons-Hosted Deposits Porphyry Cu-Mo (Au, Ag) Porphyry Mo (±W, Sn, Bi) Porphyry Sn Granitoid-related Au Felsic plutonic U-REE W vein Deposits related to mafic and ultramafic rocks Zoned mafic-ultramafic Cr-PGE (±Cu, Ni, Au, Co, Ti, or Fe) (Alaskan- Uralian PGE) Zoned ultramafic, mafic, felsic, and alkalic PGE-Cr and apatite-Ti Anorthosite apatite-Ti-Fe Gabbroic Ni-Cu (PGE) Podiform Cr Hornblende-Peridotite Cu-Ni (PGE) Serpentine-hosted asbestos Deposits related to regionally metamorphosed rocks Au quartz vein (includes concordant-vein, and shear-zone Au) Disseminated Au-sulfide (Maiskoe type) Clastic sediment-hosted Sb-Au Cu-Ag quartz vein (vein Cu) Kennecott Cu
Table 2 Summary of correlations and tectonic linkages for the Circum-North Pacific. CRATONAL, PASSIVE CONTINENTAL-MARGIN AND RELATED TERRANES AND OVERLAP ASSEMBLAGES IN THE RUSSIAN SOUTHEAST Units, correlations, and age Tectonic environment(s) Tectonic linkages and comments Kabarga, Sergeevka, Kabarga, and Voznesenka terranes of Khanka superterrane. Late Proterozoic and Paleozoic. Argun and Gonzha terranes. Archean and Paleozoic. Oldoi and Mamyn terranes. Proterozoic to middle Paleozoic. Baladek terrane. Archean, Paleozoic, Early Mesozoic. Ayansk terrane. Paleozoic. Bureya terrane. Passive continental margin Derived from Gondwanaland supercontinent during Devonian rifting and formation of bimodal volcanic rocks. Contain Late Paleozoic continental-margin arcs. Cratonal Derived from North Asian Craton during Late Proterozoic rifting. Dismembered parts of the Altaid orogenic system. Passive continental margin Derived from North Asian Craton Margin during Late Proterozoic rifting, dismembered part of Altaid orogenic system. Cratonal Derived from North Asian Craton during Late Proterozoic rifting. Passive continental margin Derived from North Asian Craton Margin during Late Devonian rifting? Continental-margin arc Rifted fragment of North China Craton. Dismembered part of Manchurid orogenic system. Early Paleozoic and older. LAOELIN-GRODEKOVO ISLAND ARC IN THE RUSSIAN SOUTHEAST Laoelin-Grodekovsk terrane, various backarc units within Khanka superterrane, and Chongjin terrane (Japan). Island arc. Formed adjacent to Khanka superterrane. Permian. Spassk terrane of Khanka superterrane. Early and middle Paleozoic. Accretionary wedge Linked to Laoelin-Grodekovo terrane. Appendix 341 CRATONAL, PASSIVE, AND METAMORPHOSED CONTINENTAL-MARGIN TERRANES IN THE RUSSIAN NORTHEAST, ALASKA, AND CANADIAN CORDILLERA Chukotka terrane, Arctic Alaska superterrane, Passive continental margin Dismembered parts of North American Craton Cassiar terrane. Proterozoic, Paleozoic, and early Mesozoic. Margin. Seward terrane (both sides of Bering Straits) Metamorphosed continental Highly metamorphosed and deformed fragments Coldfoot, and Ruby terranes. margin of North American Craton Margin. Contain Late Early and middle Paleozoic (mainly). Devonian and Early Mississippian continentalmargin arc rocks. Yukon-Tanana and Kootenay terranes. Metamorphosed continental Highly metamorphosed and deformed rifted Paleozoic. margin fragments of North American Craton Margin. Contain Late Devonian and Early Mississippian continental-margin arc rocks. Dillinger, Kula-Nera, Nixon Fork, Prikolyma, Passive continental margin Dismembered fragments of North Asian Craton Omulevka, Mystic, and Viliga terranes. Margin (Verkhoyansk fold and thrust belt). Late Paleozoic and early Mesozoic. Devonian and Early Mississippian rifting. Kilbuck-Idono, Okhotsk, and Omolon terranes. Cratonal Dismembered fragment of North Asian Craton. Late Late Archean, Proterozoic, and early Paleozoic. Devonian and Early Mississippian rifting.
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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
Page 321 and 322: Bradley, D.C., Haeussler, P.J., and
Page 323 and 324: Bundtzen, T.K., Laird, G.M., Caluti
Page 325 and 326: Cecile, M.P., 1982, The lower Paleo
Page 327 and 328: Debari, S.M., and Coleman, R.G., 19
Page 329 and 330: 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: Appendix Table 1. Mineral deposit m
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 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
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Table 4—Continued Deposit Name Mi
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Table 4—Continued Surprise Lake M
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Table 4—Continued Sredinny Metall
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Table 4—Continued Deposit Name Mi
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