Unnamed Prospect (ARDF - WI110; on Smith Creek Dome), Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi

Regional Level Types
Unnamed Prospect (ARDF - WI110; on Smith Creek Dome)	- not defined -
Koyukuk Mining District	Mining District
Yukon-Koyukuk Census Area	Census Area
Alaska	State
USA	Country

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.
Location: 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.
Geology: 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 1990's 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).
Workings: Vein exposed in a small prospect pit or trench.
Alteration: The stibnite is altered to secondary antimony minerals.

Commodities (Major) - Au, Sb
Development Status: No
Deposit Model: Simple Sb deposit (Cox and Singer, 1986; model 27d)

Other Databases

Link to USGS - Alaska:	WI110

Other Regions, Features and Areas containing this locality

References