Page 601 - NEWGEN21-Proceedings-Full

Alteration And Mineralization

Gold mineralization at Black Pine is similar to
oxidized Carlin-Type deposits throughout the Great
Basin:

• Hosted in Paleozoic carbonate rocks, particularly
calcareous siltstone or silty limestone

• Spatial association of gold mineralization with
brittle structures including normal faults and
breccias

4.53 g/t Au 13.2 g/t Au 4.70 g/t Au 0.99 g/t Au
• Alteration includes decalcification, silicification,
clay alteration, calcite cemented breccias and and
calcite veining (Carlin alteration)

• Gold is associated with elevated As, Sb, Tl and Hg
(Carlin fingerprint), Ba and to a lesser extent Pb

• Pervasively oxidized; gold spatially associated with
iron oxides

• Gold is primarily submicron but also present as 2-
5 micron grains
1.07 g/t Au 1.55 g/t Au 0.86 g/t Au 0.28 g/t Au

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