Unnamed (head of Ursus Cove)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals copper sulfides

Geographic location

Quadrangle map, 1:250,000-scale IL
Quadrangle map, 1:63,360-scale C-3
Latitude 59.5289
Longitude -153.7978
Nearby scientific data Find additional scientific data near this location
Location and accuracy The location of this occurrence at the head of Ursus Cove is uncertain. Detterman and Cobb (1972, no. 15) reported a copper occurrence about in the SW1/4 NE1/4 sec. 1, T. 8 S., R. 27 W., Seward Meridian, and cite Detterman and Reed (1964) as their source. Detterman and Reed (1964), however, show a copper occurrence near sea level at the mouth of an unnamed creek entering Ursus Cove in the SW1/4 sec. 31, T. 7 S., R. 26 W,, and no location in section 1, as pointed out by Cobb (1976, p. 29). For this record, the site is about as shown by Detterman and Reed (1964).

Geologic setting

Geologic description

Strata exposed near this reported occurrence are layered volcanic and sedimentary rocks in north-northeast-trending open folds that are cut by north-northeast-striking faults (Detterman and Reed, 1980). The strata include limestone-rich units of the Upper Triassic Kamishak Formation, and andesitic volcanic rocks and minor sedimentary rocks of the Middle Jurassic Talkeetna Formation. Detterman and Reed (1964) reported copper sulfides along the south shore of Ursus Cove, but because Detterman and Reed's location is uncertain, the host rocks are unknown.
Geologic map unit (-153.799940256549, 59.5282380164322)

Production and reserves

Workings or exploration Reconnaissance geologic mapping (Detterman and Reed, 1964, 1980).
Indication of production None