Unnamed Prospect (ARDF - MM040; on hill 4372), Kantishna Mining District, Denali Borough, Alaska, USAi

Regional Level Types
Unnamed Prospect (ARDF - MM040; on hill 4372)	- not defined -
Kantishna Mining District	Mining District
Denali Borough	Borough
Alaska	State
USA	Country

The prospect is in Denali National Park and Preserve.
Location: This prospect is about 500 feet west of the top of hill 4372 in the SW 1/4 SW1/4 section 15, T. 15 S., R. 16 W., Fairbanks Meridian. The location is accurate for a galena-bearing quartz vein, but there may be at least two other mineral showings near this site. Subject to this qualification, the prospect corresponds to number 60 of Bundtzen, Smith, and Tosdal (1976), 282 of Hawley and Associates (1978), 67 of Bundtzen (1981), and 95 of Thornsberry, McKee, and Salisbury (1984).
Geology: The country rocks in the area of this prospect consist of Birch Creek quartzite and mica schist faulted against Spruce Creek metafelsite (Bundtzen, 1981; Thornsberry, McKee, and Salisbury, 1984, fig. K-2). Bundtzen, Smith, and Tosdal (1976) described a two-foot-thick, stibnite-galena-sphalerite-quartz vein at this locality. A sample assayed 0.1 ounce of gold per ton, 48.5 ounces of silver per ton, 0.21 percent copper, 2.1 percent lead, 0.5 percent antimony, and 2.15 percent arsenic. In 1983, Thornsberry, McKee, and Salisbury (1984, v. 2, occurrence 95) mapped a 2- to 3-foot-thick, steeply dipping quartz vein that strikes N75W. The vein assayed 0.23 ounce of gold per ton, 51.3 ounces of silver per ton, 0.33 percent copper, 21.5 percent lead, 14.0 percent zinc, 0.39 percent antimony, and 2.85 percent arsenic.
Workings: The area was mapped and sampled by Bundtzen, Smith, and Tosdal (1976), Hawley and Associates (1978), and Thornsberry, McKee, and Salisbury (1984). Bundtzen's and Hawley's parties found no evidence of previous prospecting at this site. Thornsberry's party found several small pits; it is possible that that their location is a few hundred feet from the locality visited in the earlier investigations.
Age: The deposit is assumed to be Eocene (see record MM091).

Commodities (Major) - Ag, Au, Pb, Zn; (Minor) - As, Cu, Sb
Development Status: None
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c).

Other Databases

Link to USGS - Alaska:	MM040

Other Regions, Features and Areas containing this locality

References