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USGS Professional Paper 1697 - Alaska Resources Library

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Table 3—Continued<br />

Metallogenic Belt Major Mineral Deposits Types.<br />

Environment and<br />

Tectonic Event and<br />

(Abbreviation) (Signifi cant Mineral Deposits)<br />

Host Unit<br />

Comments<br />

LATE TERTIARY and QUATERNARY METALLOGENIC BELTS (Pliocene through Present—4 to 0 Ma) (fi gs. 17, 18)<br />

Metallogenic Belts Formed in Late Tertiary and QuaternaryContinental-Margin Arcs, Kamchatka Peninsula, Southern <strong>Alaska</strong>, and Southern Canadian Cordillera<br />

Sakhalin Island (SH) Silica-carbonate, volcanic-hosted Hg Rear of a continental-margin Back-arc spreading behind Kuril arc?<br />

deposits.<br />

arc?<br />

(In’ River, Inskoe Ostrinskoe,<br />

Svetlovskoe , Yasnoe)<br />

Shear zones.<br />

Metallogenic Belt Major Mineral Deposits Types.<br />

Environment and<br />

Tectonic Event and<br />

(Abbreviation) (Signifi cant Mineral Deposits)<br />

Host Unit<br />

Comments<br />

Kuril (KU) Au-Ag epithermal vein, polymetallic Continental-margin arc. Subduction-related granitic plutonism that formed the Kuril Island part of<br />

vein, Sn vein, sulfur-sulfi de, & others.<br />

(Novoe, Prasolovskoe, Koshkina,<br />

Valentinovskoe)<br />

Kuril volcanic-plutonic belt. Northeast Asia continental margin arc.<br />

<strong>Alaska</strong> Peninsula & Aleutian Islands (AP)<br />

Continuing Metallogenic Belts<br />

Belt started in Miocene.<br />

Owl Creek (OC) Belt started in Eocene.<br />

366 Metallogenesis and Tectonics of the Russian Far East, <strong>Alaska</strong>, and the Canadian Cordillera

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