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• <br />• <br />Table 5-6 <br />Rock Type Characteristics <br /> Dry Dry Dry Adverse <br />Stability Zone Volcanic Pipe Granitic Granitic Colluvium <br /> Rock Rock Rock Rock <br /> Tertiary Granitic rock Unconsolidated <br /> Volcanic rock rock of within the Granitic rock Volcanic/ <br /> <br />Rock Type of Cripple Cresson <br />Cripple <br />in Grassy <br />Granitic rock <br /> Creek Globe Hill Creek Valley material in the <br /> diatreme and Ironclad diatreme District <br /> pipes <br /> Strong Weak Moderate Strong Weak <br />Intact Strength (10,000 psi) (1000 psi) (6000 psi) (8000 psi) (-35°, c-0) <br />Structure Dominantly Rubble Random Dominantly n/a <br /> vertical Vertical <br />Fracturing Moderate Intense Moderate Moderate n/a <br /> (RQD -80%) (RQD-O%) (RQD-60%) (RQD-50%) <br /> Along <br />Joint Orientation Random Random Random schistosity n/a <br /> Rock flour, <br />Joint Filling None gypsum, None None n/a <br /> calcite <br /> Low <br />Water Pressure None None None (-20% of Varies <br /> height) <br />Overall 60° 40° 50° 45° 36° <br />Slope Angle <br />Inter-Bench 79° 79° 79° 79° 40° <br />Slope Angle <br />Lifts Between 3 3 3 3 1 <br />Benches <br />Lift Height 35 ft 35 ft 35 ft 35 ft 35 ft <br />Main Bench 20 ft 45 ft 30 ft 35 ft 18 ft <br />Width <br />Intermediate 1 ft 30 ft 1 ft 1 ft n/a <br />Bench Width <br />• RQD (Rock Quality Designator) = percentage of rock core recovered which exceeds 4" in intact length pieces. <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension <br />5-12