Unnamed (southwest flank of Wickersham Dome) (ARDF #DN103) Au

Unnamed (southwest flank of Wickersham Dome)

Prospect, Inactive

Commodities and mineralogy

Main commodities	Au
Other commodities	Ag; As
Ore minerals	arsenopyrite; limonite; pyrite
Gangue minerals	quartz; siderite

Geographic location

Quadrangle map, 1:250,000-scale	DN
Quadrangle map, 1:63,360-scale	C-2
Latitude	63.5518
Longitude	-150.9318
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	This prospect is at an elevation of about 3100 feet on the southwest flank of Wickersham Dome, a short distance northeast of the north end of Quigley Ridge. It is near the west end of the south boundary of section 6, T. 16 S., R. 17 W., Fairbanks Meridian. The location is accurate within 300 feet. The prospect corresponds to number 25 of Bundtzen, Smith, and Tosdal (1976) and to number 81 of Hawley and Associates (1978). It also corresponds to number 43 of Thornsberry, McKee, and Salisbury (1984), although numbers 43 and 42 are interchanged on their map (fig. K-8).

Geologic setting

Geologic description The country rock at the prospect is mainly feldspathic quartz schist of the Birch Creek Schist (Bundtzen, 1981; Thornsberry, McKee, and Salisbury, 1984). The deposit consists of a sulfide-bearing quartz-siderite vein, and of finely disseminated pyrite and arsenopyrite in the adjacent country rocks. Four largely sloughed pits and a 20-foot-long sloughed trench along the vein are aligned about N 15-20 E. A grab sample of dump material contained barely detectable gold, 1.6 ppm silver, and 670 ppm arsenic; copper, lead, and zinc were near background levels.
Geologic map unit	(, )
Mineral deposit model	Low-sulfide quartz-siderite vein.
Age of mineralization	The deposit is assumed to be Eocene (see record DN091).

Production and reserves

Workings or exploration	The prospect is explored by 4 small pits and a short trench of unknown date.
Indication of production	None
Additional comments The prospect is in Denali National Park and Preserve.

References

References Bundtzen, T.K., 1981, Geology and mineral deposits of the Kantishna Hills, Mt. McKinley quadrangle, Alaska: M. S. Thesis, University of Alaska, College, Alaska, 238 p. Bundtzen, T.K., Smith, T.E., and Tosdal, R.M., 1976, Progress report--Geology and mineral deposits of the Kantishna Hills: Alaska Division of Geological and Geophysical Surveys Open-File Report AOF-98, 80 p., 2 sheets, scale 1:63,360. Hawley, C. C. and Associates, Inc, 1978, Mineral appraisal of lands adjacent to Mt. McKinley National Park, Alaska: U. S. Bureau of Mines Open-File Report 24-78, 275 p. (paged by sections). Thornsberry, V. V., McKee, C. J., and Salisbury, W. G., eds, 1984, 1983 Mineral Resource Studies: Kantishna Hills and Dunkle Mine Areas, Denali National Park and Preserve, Alaska: U. S. Bureau of Mines Open-File Report 129-84. 3 Volumes: v. 1, Text; v. 2, Appendices; v. 3, Maps. Prepared by Salisbury & Dietz, Inc., Spokane, WA.
Reporters	C.C. Hawley
Last report date	4/29/2001