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• <br /> SSR <br /> MINING <br /> Exhibit C-5 shows the geology of the Cripple Creek Mining District(District). Mineralization in the <br /> northwest portion of the District falls into the North Cresson Mine area and includes Globe Hill, <br /> Schist Island, and Dump 1. The geology is dominated by a large, northwest- trending, elongate, <br /> Precambrian ridge of schist that is surrounded by diatremal breccia. Both the schist and breccia <br /> are oxidized on the surface and display moderate to strong potassic alteration and weak argillic <br /> alteration. This area has been intruded by scattered and discontinuous lamprophyre and <br /> phonolitic dikes as well as a small plug of porphyritic phonolite. The dominant structural trends in <br /> this area display a north-northwest and northeast-trending fabric. <br /> The Globe Hill area is underlain by breccia and phonolitic country rock that was intruded by late- <br /> stage hydrothermal breccia pipes. These breccia pipes hosted most of the gold mineralization in <br /> the area and are characterized by strong argillic alteration as well as the presence of sulfate <br /> (gypsum and anhydrite), carbonate (calcite and rhodochrosite), and quartz veining. The breccia <br /> pipe bodies are generally less than 500 feet in diameter and occur at the intersection of northeast- <br /> and north-northwest-trending structural zones. <br /> The Maize Gulch area general lithology is composed of four rock types. The predominant bedrock <br /> unit is the Cripple Creek lapilli breccia, which generally consists of a massive, structureless, <br /> • matrix-supported breccia that is poorly sorted, typical of diatremal crater fill breccia. Clasts are <br /> sub-angular to sub-rounded and primarily composed of various phonolite units with occasional <br /> Precambrian fragments. The breccia commonly shows varying degrees of hydrothermal <br /> alteration. The second and third rock types are the plagioclase phonolite and the phonolite, <br /> respectively. The phonolite is light- to medium-gray, porphyry with subhedral to euhedral, <br /> medium- to coarse-grained phenocrysts of alkali feldspar with minor amounts of feldspathoids, <br /> glassy apatite, and pyroxenes. The fourth unit is biotite bearing plagioclase phonolite. This <br /> material is generally a gray, fine-grained porphyry with euhedral biotite and alkali feldspar <br /> phenocrysts. <br /> 1111 Cripple Creek&Victor Gold Mining Company Exhibit D <br /> Cresson Project Amendment 14 <br /> 5 <br />