|Quadrangle map, 1:250,000-scale||DN|
|Quadrangle map, 1:63,360-scale||C-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The Arizona prospect is in a minor northwest tributary to Eldorado Creek that enters Eldorado about 3000 feet below the mouth of Reinhart Creek. It is at an elevation of about 2400 feet in the NE1/4NE1/4 sec. 27, T. 16 S., R. 18 W., Fairbanks Meridian. The accuracy of the location is uncertain but is probably within 1000 feet. The prospect is number 5 of Bundtzen (1981) and 10 of Thornsberry, McKee, and Salisbury (1984).|
Geologic descriptionThe Arizona prospect is in Birch Creek-type chlorite-muscovite-quartz schist (Bundtzen, Smith and Tosdal, 1976; Bundtzen, 1981). It is on the north flank of the quartz porphyry pluton that hosts the Bonnell mine (DN030). The prospect was probably staked for gold. Assays show only about 0.3 ounce of silver per ton, a trace of gold, and no significant base metals (Bundtzen, 1981, p. 212).
|Geologic map unit||(, )|
|Mineral deposit model||Low-sulfide gold?-quartz vein (Cox and Singer, 1986; model 36a?).|
|Mineral deposit model number||36a?|
|Age of mineralization||The deposit is assumed to be Eocene (see record DN091).|
|Workings or exploration||Unknown, possibly pits or trenches.|
|Indication of production||None|
Additional commentsThe prospect is in Denali National Park and Preserve. In 1983, Thornsberry, McKee, and Salisbury (1984, v. 2, location 10) thought that the Arizona no. 2 claim might be overlain by one of the Bonnell claims of Jim Fuksa.
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.
Cox, D.P., and Singer, D.A., eds., 1986, Mineral deposit models: U.S. Geological Survey Bulletin 1693, 379 p.
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.
|Last report date||4/12/2001|