Talus Bay

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cr; Ni

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale A-6
Latitude 60.0097
Longitude -149.203
Nearby scientific data Find additional scientific data near this location
Location and accuracy The occurrence is located in the N1/2 section 13, T. 2 S., R. 1 E., of the Seward Meridian. It is located at the head of Talus Bay on the north shore of Day Harbor. This is location 102 of Tysdal (1978 [MF-880-A]) and location S-187 of Jansons and others (1984). This location is accurate to within half a mile.

Geologic setting

Geologic description

The occurrence is a shear zone several yards wide in gabbro; one sample contained 1,500 ppm chromium and 300 ppm nickel (Tysdal, 1978 [MF-880-A]). Nelson and others (1985) mapped the gabbro as part of the Resurrection Bay Ophiolite sequence of Late Cretaceous age. No other information is available in the literature.
Geologic map unit (-149.205134997181, 60.0091418893693)
Mineral deposit model Podiform chromite (Cox and Singer, 1986; model 8a)
Mineral deposit model number 8a
Age of mineralization Cretaceous or younger; the shear cuts rocks of the Valdez Group of Late Cretaceous age.

Production and reserves

Workings or exploration A single sample contained 1,500 ppm chromium and 300 ppm nickel (Tysdal, 1978 [MF-880-A]).
Indication of production None