Lower Lawson Creek

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale JU
Quadrangle map, 1:63,360-scale B-2
Latitude 58.2851
Longitude -134.4109
Nearby scientific data Find additional scientific data near this location
Location and accuracy This placer prospect is at the mouth of Lawson Creek on Douglas Island, 1/2 mile northwest of Douglas. It is near the center of section 26, T. 41 S., R. 67 E. of the Copper River Meridian. The location is accurate.

Geologic setting

Geologic description

Several placer claims at this site were active from 1881 to 1981 (Wells and others, 1986). The Lawson Creek area is underlain by black phyllite and diorite (Redman and others, 1989). The U.S. Bureau of Mines collected a pan-concentrate sample here that contained 1.7 ppm gold (Redman and others, 1989). The country rocks in the general area are Upper Jurassic or Cretaceous marine argillite and graywacke, interbedded with andesite or basalt (Brew and Ford, 1985). The bedded rocks are regionally metamorphosed to prehnite-pumpellyite or greenschist grade, and cut by diorite or gabbro dikes and sills.
Geologic map unit (-134.412670195818, 58.2847719559747)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Several placer claims at this site were active from 1881 to 1981 (Wells and others, 1986).
Indication of production Undetermined

References