West Talus Bay

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cr
Ore minerals chromite; magnetite

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale A-6
Latitude 60.0076
Longitude -149.2257
Nearby scientific data Find additional scientific data near this location
Location and accuracy The occurrence is located in the NE1/4 section 14, T. 2 S., R. 1 E., of the Seward Meridian. It is located approximately 0.6 mile west of Talus Bay on the north shore of Day Harbor at an elevation of 1,500 feet. This is location 104 of Tysdal (1978 [MF-880-A]) and location S-186 of Jansons and others (1984). This location is accurate to a quarter of a mile.

Geologic setting

Geologic description

The occurrence is described as disseminated chromite near the contact of a gabbro and a sheeted dike complex. The complex belongs to the Resurrection Bay Ophiolite sequence, which is Late Cretaceous in age (Nelson and others, 1985). A single sample contained 1,000 ppm chromium (Tysdal, 1978 [MF-880A-]). No other information available in the literature.
Geologic map unit (-149.227835645783, 60.0070411009227)
Mineral deposit model Podiform chromite (Cox and Singer, 1986; model 8a)
Mineral deposit model number 8a
Age of mineralization Cretaceous or younger; gabbro is in rock of Late Cretaceous age.

Production and reserves

Workings or exploration No workings or improvements are reported in the literature. A single sample contained 1,000 ppm chromium (Tysdal, 1978 [MF-880-A]).
Indication of production None

References