Cordilleran Vein Type Deposits Examples

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<strong>Vein</strong>s 11/3/10 Colorado Telluride Belt • NE end of the Colorado Mineral Belt • Placer gold discovered in 1859 • Au-‐Te ores discovered in 1872 • Small, erra>cally distributed, rich ore bodies • Mined un>l about 1960 • Te not recovered from these ores -‐ Te recovered during Cu refining (porphyries) 12
<strong>Vein</strong>s 11/3/10 Geologic Seong • Precambrian schist and gneiss intruded by Ter>ary stocks & dikes • Te mineraliza>on related to dikes and intrusion breccias • Localized where NW ‘breccia reefs’ intersect NE veins 13
Page 1 and 2: Veins 11/3/10 Cordilleran Vein Type
Page 3 and 4: Veins 11/3/10 Casapalca, Peru 3
Page 5 and 6: Veins 11/3/10 5
Page 7 and 8: Veins 11/3/10 7
Page 9 and 10: Veins 11/3/10 Timing, temperature,
Page 11: Veins 11/3/10 Cerro de Pasco, Peru
Page 15 and 16: Veins 11/3/10 Ore Deposits -‐ M
Page 17 and 18: Veins 11/3/10 Coeur D’Alene, Idah
Page 19 and 20: Veins 11/3/10 Faul>ng • WNW fault
Page 21 and 22: Veins 11/3/10 Timing or Mineraliza>
Page 23: Veins 11/3/10 Cobalt, Ontario -

Cordilleran Vein Type Deposits Examples

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