Cripple Creek (ARDF #BC069) Ag, Cu, Pb, Zn

Cripple Creek

Prospect, Inactive

Commodities and mineralogy

Main commodities	Ag; Cu; Pb; Zn
Ore minerals	chalcopyrite; galena; pyrite; pyrrhotite; sphalerite; tetrahedrite
Gangue minerals	quartz

Geographic location

Quadrangle map, 1:250,000-scale	BC
Quadrangle map, 1:63,360-scale	A-1
Latitude	56.025
Longitude	-130.067
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	The Cripple Creek prospect is in the north part of Section 35 at an elevation of about 400 feet, between the Salmon River Road and an abandoned aerial tramway (Elliott and Koch, 1981, p. 17, loc. 69). The location is accurate within about a quarter of a mile. Also see Additional Comments field, below.

Geologic setting

Geologic description The country rocks in the area of this prospect are the Triassic Texas Creek Granodiorite, which underlies and locally intrudes pelitic metasedimentary and subordinate andesitic metavolcanic strata of the Jurassic or older Mesozoic Hazelton Group; the Eocene Boundary Granodiorite, which intrudes the Texas Creek and Hazelton rocks; and still-younger Tertiary lamprophyre dikes, which cut all the other rocks (Smith 1973, 1977; Koch, 1996). There appear to be two main types of deposits (Buddington, 1925, p. 74; 1929. p. 83-84). (1) A quartz fissure vein up to 8 feet thick in the footwall of a 10-15-foot thick sheeted shear zone in granodiorite. The vein contains considerable galena and smaller amounts of pyrite, chalcopyrite, sphalerite, and tetrahedrite, and was explored by a 45-foot adit and a short crosscut. (2) Fissured and brecciated zones comprising sulfide-bearing quartz veinlets and sulfide-impregnated granodiorite. Pyrite is the principal sulfide in these zones, accompanied by a little galena and sphalerite.
Geologic map unit	(-130.068704517553, 56.02470377234)
Mineral deposit model	Polymetallic veins (Cox and Singer, 1986; model 22c).
Mineral deposit model number	22c
Alteration of deposit	Sheared granodiorite is partly replaced (?) by disseminated sulfides.

Production and reserves

Workings or exploration	Property was developed in 1920s by a 45-foot adit and a short crosscut.
Indication of production	None
Additional comments Property was probably originally staked in early 1920s. Taken over by Brigadier Mining Company sometime before 1929 (Buddington, 1929, p. 83).

References

MRDS Number	A010229
References Smith, J.G., 1977, Geology of the Ketchikan D-1 and Bradfield Canal A-1 quadrangles, Alaska: U.S. Geological Survey Bulletin 1425, 49 p., 1 plate.
Reporters	H. C. Berg (Fullerton, California)
Last report date	5/17/1998