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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 /> <br />Volcanic rock Tertiary <br />rock of Granitic rock Unconsolidated <br /> <br />of Cripple <br />Cresson within the Granitic rock Volcanic/ <br />Rock Type <br />Creek <br />Globe Hill Cripple in Grassy Granitic rock <br /> <br />diatreme <br />and Ironclad Creek Valley material in the <br /> diatreme District <br /> pipes <br />Intact Strength Strong Weak Moderate Strong Weak <br /> (10,000 psi) (1000 psi) (6000 psi) (8000 psi) (~35°, c~0) <br /> <br />Structure Dominantly <br />Rubble <br />Random Dominantly <br />n/a <br /> vertical Vertical <br />Fracturin <br />g Moderate <br />' Intense Moderate Moderate n/a <br /> (RQD <br />~80%) (RQD~0%) (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 <br />Slope Angle 60° 40° 50° 45° 36° <br />Inter-Bench 79° 79° 79° 79° 40° <br />Slope Angle <br />Lifts Between <br /> <br />Benches 3 3 3 3 1 <br />Lift Height 35 ft 35 ft 35 ft 35 ft 35 ft <br />Main Bench <br />Width 20 ft 45 ft 30 ft 35 ft 18 ft <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 <br />