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Metallogenesis and Tectonics of the Russian Far East, Alaska, and ...

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<strong>East</strong>, nor<strong>the</strong>rn Japan, <strong>and</strong> adjacent <strong>of</strong>fshore areas. Refer to text for descrip* t ,.si <strong>of</strong> metallogenic . ;-. belts. Adaeted from Nokleberq an<br />

o<strong>the</strong>rs (1 997b, 1998)<br />

. < -.--<br />

(6) In <strong>the</strong> same region is <strong>the</strong> aillespic (GE) metallogenic belt <strong>of</strong> SEDm Pb-Zn deposits that is hosted in <strong>the</strong> North American<br />

Craton Margin <strong>and</strong> is interpreted as forming during Intrusion <strong>of</strong> gabbro <strong>and</strong> diorite sills during Paleoproterozoic rifting. (7) In <strong>the</strong><br />

same region is <strong>the</strong> Rapitan (RA) metallogenic belt <strong>of</strong> iron formation deposits that is hosted in <strong>the</strong> North hnerican Craton Margin. ##,<br />

This bell is interpreted as forming during marine exhalation along Mesoproterozoic North American Craton Margin. (8) In <strong>the</strong> P1<br />

same region is <strong>the</strong> Redstone (RD) metallogenic belt <strong>of</strong> sediment-hosted Cu-Ag. deposits that is hosted in <strong>the</strong> North American Craton . .<br />

~ar~in.-~his belt is interpreted as formingduring incipient Nwproterozoic rifting <strong>of</strong> <strong>the</strong> North American Cram Margin. (9) In<br />

<strong>the</strong> sou<strong>the</strong>rn Canadian Cordillera is <strong>the</strong> Monashee (RD) metallogenic belt <strong>of</strong> SEDEX Zn-PbAg depmls. This belt, that is hosted in<br />

<strong>the</strong> Monashee terrane, is interpreted as a fiagment <strong>of</strong> North American Craton <strong>and</strong> formed during Late Proterozoic rifting <strong>of</strong> North<br />

American Craton. (10) In <strong>the</strong> same region, <strong>the</strong> Purcell (PR) belt <strong>of</strong> massive sulfide deposits is hosted in <strong>the</strong> North ~rnehcan<br />

Craton Margin, <strong>and</strong> is interpreted as forming during incipient rifting <strong>of</strong> <strong>the</strong> craton. And (1 1) in <strong>the</strong> same region, <strong>the</strong> Clark Range<br />

(CR) belt <strong>of</strong> sediment-hosted Cu-Ag deposits is hosted in <strong>the</strong> North American Craton Margin, <strong>and</strong> is interpreted as forming d&ng<br />

incipient rifling <strong>of</strong> <strong>the</strong> craton margin. In <strong>the</strong> below descriptions <strong>of</strong> metallogenic belts, only notable examples <strong>of</strong> significant lode<br />

deposits are described for each belt. Table 4, which is adapted <strong>and</strong> revised from Nokleberg <strong>and</strong> o<strong>the</strong>rs (1997a), lists <strong>the</strong> significant<br />

lode deposits in each metallogenic belt.<br />

. ", .

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