Unnamed (on Smith Creek Dome)

Prospect, Inactive

Commodities and mineralogy

Main commodities Au; Sb
Ore minerals cervantite; gold; kermesite; stibiconite; stibnite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale WI
Quadrangle map, 1:63,360-scale B-1
Latitude 67.4852
Longitude -150.1554
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is at an elevation of about 3,150 feet in a saddle approximately 0.7 mile northeast of the summit of Smith Creek Dome. The location is accurate.

Geologic setting

Geologic description

The prospect consists of stibnite and various alteration products of stibnite (including cervantite, kermesite, and stibiconite) in a 6-inch-wide vein exposed in an old trench. The vein strikes N5E and dips 50E. Rock samples collected by Brosge and Reiser (1972) from this prospect contain up to 9.2 ppm gold. A sample collected in the late 1990s described as vein quartz with stibnite and a yellow alteration mineral contained only 436 ppb gold, 297 ppm arsenic and 28.09% antimony (Kurtak and others, 1999; Eden, 2000). The rocks in the area are Upper Devonian, brown micaceous schist, with lesser phyllite and metasiltstone (Eden, 2000).
Geologic map unit (-150.158149772184, 67.4847752004498)
Mineral deposit model Simple Sb deposit (Cox and Singer, 1986; model 27d)
Mineral deposit model number 27d
Alteration of deposit The stibnite is altered to secondary antimony minerals.

Production and reserves

Workings or exploration Vein exposed in a small prospect pit or trench.
Indication of production None

Additional comments

See also Jones and Boyle (WI114) and Wannemaker and Wortman (WI115). Note that the this prospect is different from another unnamed occurrence (WI127) nearer the summit of Smith Creek Dome.


MRDS Number A011939


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