Bligh Island (Alaska Commercial Co.)

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale CV
Quadrangle map, 1:63,360-scale D-8
Latitude 60.88
Longitude -146.74
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is at sea level near the northeastern end of Bligh Island. It is in the N1/2 sec. 36, T. 11 S., R. 9 W., of the Copper River Meridian. The site is accurately located to within 2000 ft. This prospect is shown as site C-94 in Jansons and other (1984) and as loc. 2 in Cobb (1972: MF-392).

Geologic setting

Geologic description

The prospect is in volcanic rock of the Tertiary Orca Group (Nelson and other, 1985). Capps and Johnson (1913) describe an auriferous quartz vein in greenstone. In 1915 they reported values of 121 oz Au/ton, but that the prospect was mined out (Capps and Johnson, 1915) and the shaft caved.
Recent sampling of the prospect area yielded values of gold ranging from <0.03 ppm to 0.03 ppm (Jansons and others, 1984).
Geologic map unit (-146.742033101232, 60.8794671970007)
Age of mineralization Probably Tertiary based on the age of the host rock.

Production and reserves

Workings or exploration Recent sampling of the prospect area yielded values of gold ranging from <0.03 ppm to 0.03 ppm (Jansons and others, 1984).
Indication of production None

Additional comments

Chugach Alaska Corporation, Anchorage, Alaska has control of these lands.

References