Unnamed (Passage Canal)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au; Mo
Ore minerals gold; molybdenite
Gangue minerals feldspar; mica; quartz

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale D-4
Latitude 60.8325
Longitude -148.4457
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is located near high tide level on the north side of Passage Canal, approximately a half-mile west of Logging Camp Bay. It is located in the NE1/4 section 31, T. 9 N., R. 6 E., of the Seward Meridian. This is location S-165 of Jansons and others (1984). This location is accurate to within a quarter of a mile.

Geologic setting

Geologic description

This deposit consists of a gold- and molybdenite-bearing pegmatite vein hosted in the Passage Canal pluton. Lanphere (1966) has dated the Passage Canal pluton at 36.6 million years (Oligocene). The occurrence was discovered by the U.S. Bureau of Mines in 1981 (Hoekzema and Sherman, 1983). One grab sample of the felsic pluton contained 2.5 ppm gold, 150 ppm molybdenum, and 1,000 ppm bismuth.
Geologic map unit (-148.447797634099, 60.8319068823707)
Mineral deposit model Low-sulfide Au-quartz vein (Cox and Singer, 1986; model 36a)
Mineral deposit model number 36a
Age of mineralization Oligocene or younger, the age of the host rock.

Production and reserves

Workings or exploration The occurrence was discovered in 1981 by the U.S. Bureau of Mines. Of three samples collected, one sample of felsic pluton contained 2.5 ppm gold, 150 ppm molybdenum, and 1,000 ppm bismuth.
Indication of production None

References

References

Reporters Jeff A. Huber (Anchorage)
Last report date 9/16/2000