Unnamed (lower Crevice Creek) (ARDF #WI066) Cu, Pb

Unnamed (lower Crevice Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities	Cu; Pb
Ore minerals	copper sulfides; galena; malachite
Gangue minerals	quartz

Geographic location

Quadrangle map, 1:250,000-scale	WI
Quadrangle map, 1:63,360-scale	B-4
Latitude	67.3554
Longitude	-151.8983
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	This occurrence is on Crevice Creek, about 3.5 miles above its mouth. It is about 0.6 mile northwest of the center of section 7, T. 29 N., R. 20 W., of the Fairbanks Meridian, at an elevation of about 1,200 feet. The location is accurate.

Geologic setting

Geologic description This occurrence is described by Brosge and Reiser (1960) as malachite-stained, vein quartz that contains galena and unspecified copper sulfides. The occurrence is in Devonian(?) Skajit Limestone, about 0.5 mile from a small mafic, igneous body.
Geologic map unit	(-151.901041451799, 67.3549394840497)
Alteration of deposit	Malachite staining.

Production and reserves

Indication of production	None

References

References Cobb, E.H., 1972, Metallic mineral resources map of the Wiseman quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-469, 1 sheet, scale 1:250,000 Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Chandalar and Wiseman quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-340, 205 p. Grybeck, Donald, 1977, Map showing known mineral deposits of the Brooks Range, Alaska: U.S. Geological Survey Open-File Report 77-166-C, 45 p., 1 sheet, scale 1:1,000,000. Maas, K.M., 1987, Maps summarizing land availability for mineral exploration and development in northern Alaska, 1986: U.S. Bureau of Mines Open-File Report 10-87, 33 quadrangle overlays.
Reporters	J.M. Britton (Anchorage)
Last report date	8/9/2002