Metallogenesis and Tectonics of the Russian Far East, Alaska, and ...
Metallogenesis and Tectonics of the Russian Far East, Alaska, and ...
Metallogenesis and Tectonics of the Russian Far East, Alaska, and ...
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Major Mineral Deposits Types. Environment.<br />
(Abbreviation) I (Significant Mineral Deposits)<br />
Host Unit.<br />
<strong>Far</strong>ewell (FW)<br />
Kodiak Isl<strong>and</strong> <strong>and</strong><br />
Bordcr Ranges<br />
(KOD)<br />
<strong>East</strong>ern <strong>Alaska</strong> Range<br />
(EAR) (equivalent<br />
to Kluane-Nikolai<br />
belt)<br />
LATE TRIASSIC METALLOGENIC BELTS (Carnian through Norian - 230 to 208 Ma) (Figure 7)<br />
Tectonic Event.<br />
Comments<br />
Metallogenic Belt Formed During Early Mesozoic Rifting? in <strong>Alaska</strong>n Passive Continental-Margin Terranes<br />
Gabbroic Ni-Cu-PGE.<br />
Rifting?<br />
Incipient rifting <strong>of</strong> Dillinger <strong>and</strong> adjacent passive continental margin terrancs?<br />
(<strong>Far</strong>ewell district)<br />
Dillinger terrane.<br />
Metallogenic Belts Formed in Middle Mesozoic Talkeetna-Bonzana lsl<strong>and</strong> Arc in Wrangellia Superterrane<br />
Podiform Cr.<br />
Isl<strong>and</strong> arc.<br />
Subduction-related intrusion <strong>of</strong> mafic-ultramafic plutons into basal part <strong>of</strong><br />
(Halibut Bay, Claim Point, Red<br />
Border Ranges mafic-ultramafic Talkeetna-Bonzana isl<strong>and</strong> arc in Wrangellia supertcrrane.<br />
Mountain, Bernard Mountain, Dust<br />
Mountain)<br />
assemblage<br />
Metallogenic belt extended into Early <strong>and</strong> Middle Jurassic.<br />
Gabbroic Ni-Cu.<br />
Back-arc rifting?<br />
Back-arc rifting associated with Talkeetna part <strong>of</strong> Talkeetna-Bonanza isl<strong>and</strong> arc<br />
(Fish Lake, Wellgreen)<br />
Nikolai Greenstone, Wrangellia in Wrangellia superterrane.<br />
Besshi massive sulfide<br />
sequence, Wrangellia<br />
Alternative interpretation <strong>of</strong> hot spot (oceanic plume).<br />
(Denali)<br />
Strataform gypsum<br />
superterrane<br />
Alex<strong>and</strong>er (AX) Cyprus massive sulfide, Kuroko massive Back-arc?<br />
Back-arc rifting associated with Bonanza part <strong>of</strong> <strong>the</strong> Talkeetna-Bonanza isl<strong>and</strong><br />
sulfide, bedded barite.<br />
Nikolai Greenstone <strong>and</strong><br />
arc in Wrangellia superterrane.<br />
(Windy Craggy, Greens Creek, Castle equivalent units, Wrangellia Alternative interpretation <strong>of</strong> hot spot (oceanic plume).<br />
Isl<strong>and</strong>, Kuprean<strong>of</strong> Isl<strong>and</strong>, Haines) sequence, Wrangellia super<br />
terrane.<br />
Metallogenic Belts Formed in Middle Mesozoic in Stikinia-Quesnellia lsl<strong>and</strong> Arc<br />
Galore Creek (GL) Porphyry Cu-Au.<br />
Isl<strong>and</strong> arc.<br />
Subduction-related granitic plutonism that formed <strong>the</strong> Stikinia-Quesnellia isl<strong>and</strong><br />
(Galore Creek, Red Chris)<br />
Stikinia & Quesnellia terranes. arc. Belt continued into Early Jurassic.<br />
Sustut (SU)<br />
Basaltic Cu<br />
Isl<strong>and</strong> arc.<br />
Formation in <strong>the</strong> upper oxidized parts <strong>of</strong> <strong>the</strong> Stikinia-Quesnellia isl<strong>and</strong> arc<br />
(Susut)<br />
Stikinia terrane.<br />
volcanic pile during shallow burial metamorphism <strong>and</strong> diagenesis.<br />
Copper Mountain Porphyry Cu-Au, porphyry Cu-Mo. Isl<strong>and</strong> arc.<br />
Subduction-related granitic plutonism that formed <strong>the</strong> Quesnellia isl<strong>and</strong> arc. Belt<br />
(North) (CMN) (Lorraine, Mount Mulligan)<br />
Stikinia & Quesnellia terranes. continued into Early Jurassic.<br />
Copper Mountain Porphyry Cu-Au.<br />
Isl<strong>and</strong> arc.<br />
Subduction-related granitic plutonism that formed <strong>the</strong> Quesnellia isl<strong>and</strong> arc. Belt<br />
(South) (CMS) (Copper Mountain, Ingerbelle, Iron<br />
Mask, Mount Polley)<br />
Quesnellia terrane.<br />
continued into Early Jurassic..<br />
Guichon (GU) Porphyry Cu-Mo-Au, Au skam.<br />
Isl<strong>and</strong> arc.<br />
Subduction-related granitic plutonism that formed <strong>the</strong> Qucsnellia isl<strong>and</strong> arc. Belt<br />
(Highl<strong>and</strong> Valley district, Brenda,<br />
Gibraltar, ~raj~mont, Hedley)<br />
Quesnellia terrane.<br />
continued into Early Jurassic.<br />
Tcxas Crcck (TC) Porphyry Cu-Mo-Au, polymetallic vein. Isl<strong>and</strong> arc.<br />
Subduction-related granitic plutonism that formed <strong>the</strong> Stikinia isl<strong>and</strong> arc. Belt<br />
(Schaft Creek, Kerr, Sulphurets, Snip,<br />
Red Mountain, & o<strong>the</strong>rs)<br />
Stikinia terrane.<br />
continued into Early Jurassic.<br />
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