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Sedimentary Rock-Hosted Oxide
Gold Deposits in the Western Black Pine

United States

GREAT BASIN PHYSIOGRAPHIC PROVINCE

Home of “Carlin-Type” sedimentary rock-hosted gold deposits
Over 140 million ounces of past production, resources and reserves in NE
Nevada

Carlin-Type deposits characterized by:

• Located along the Early Paleozoic rifted continental margin in Ordovician
and Devonian slope facies calcareous siltstones, debris flows, etc.
• Large deposits concentrated in “trends” (Carlin, Cortez)

• Gold hosted in the lattice of arsenical pyrite rims on pyrite grains
• Alteration types include silicification/jasperoid, clay (illite), decalcification

• Geochemical association with As, Sb, Tl and Hg (Ag, Zn, Cu, etc.)
• Temporally associated with Eocene and younger slab-rollback

Lots of similar looking deposits on the Paleozoic Shelf/Platform
• Hosted in platformal and basinal carbonates and foreland basin strata

ranging from Cambrian to Permian
• Similar alteration and geochemical fingerprint

• “Carlin-Style” deposits

5 TSX:LGD | OTCQX:LGDTF