Arizona

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Ag
Ore minerals gold; limonite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale MM
Quadrangle map, 1:63,360-scale C-3
Latitude 63.5056
Longitude -151.004
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 setting

Geologic description

The 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 (MM030). 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 (-151.006283576289, 63.5050920472134)
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 MM091).

Production and reserves

Workings or exploration Unknown, possibly pits or trenches.
Indication of production None

Additional comments

The 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.

References