Unnamed Occurrence (ARDF - MG014; west side of Selatna Hills), Yukon-Koyukuk Census Area, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - MG014; west side of Selatna Hills)	- not defined -
Yukon-Koyukuk Census Area	Census Area
Alaska	State
USA	Country

Location: This unnamed occurrence is situated on a bluff and unnamed stream draining the west side of the Selatna Hills about 15 kilometers south of the big bend in the Selatna River at an elevation of 1,350 feet (412 m) in the SE1/4 sec. 6, T. 25 N., R. 34 W., of the Seward Meridian. The reporter visited the site in 1978 (at station nos. 78BT327-329).
Geology: A ferrigenous gossan occurs in a prominent north-south trending, high-angle fault zone on the west side of the Selatna Hills in the southwest McGrath quadrangle. The zone can be traced for about 950 meters along strike and is locally up to 60 meters wide, based on the appearance of ferrigenous seeps and rubble. The high-angle fault juxtaposes siltstone of the Late Cretaceous Kuskokwim Group flysch against axinite-bearing hornfels related to the early Cretaceous (61.0 Ma) Selatna pluton (Solie and others, 1991; Wilson and others, 1998). Three soil samples (78BT327-329) taken along a 150 meter-long line immediately south of the creek average 1.9 ppm silver, 169 ppm copper, 130 ppm lead, and 246 ppm zinc.
Workings: Four soil samples taken in 1978 along a 500 foot long line immediately south of the creek average 1.9 ppm silver, 169 ppm copper, 130 ppm lead, and 246 ppm zinc (T.K. Bundtzen, unpublished data).
Alteration: Gossan.
Reserves: None.

Commodities (Major) - Ag, Cu, Pb; (Minor) - Zn
Development Status: No
Deposit Model: Polymetallic vein(?) (Cox and Singer, 1986; model 22c).

Other Databases

Link to USGS - Alaska:	MG014

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References