Shoo Fly

Prospect, Inactive

Commodities and mineralogy

Main commodities Cu
Other commodities Ag; Au
Ore minerals chalcopyrite; gold; pyrite; pyrrhotite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale A-4
Latitude 60.0939
Longitude -148.1946
Nearby scientific data Find additional scientific data near this location
Location and accuracy The prospect is located between 1,380 to 1,465 feet elevation in the NE1/4 section 14, T. 1 S., R. 7 E., of the Seward Meridian. It is on the northeast side of Hogg Bay on Bainbridge Island. This is location 273 of Cobb and Tysdal (1980) and location S-24 of Jansons and others (1984). This location is accurate to 1,000 feet.

Geologic setting

Geologic description

The prospect consists of sulfide-bearing quartz stringers near the contact of a sheared greenstone and silicified mudstone of the Orca Group of early Tertiary age (Cobb and Tysdal, 1980). The greenstone and mudstone strike northeast to northwest and dip 27 to 65 W. The mineralization consists chiefly of limonite gossan with traces of chalcopyrite, pyrite, and pyrrhotite.
Workings consist of two adits, one 220 feet long, the other 405 feet long, along with a 40- by 10-foot open cut (Smith, 1926). Samples collected from the 220-foot adit and the open cut contained between 23 ppm and 0.07 percent copper and a trace to 0.11 ppm gold (Kurtak and Jeske, 1986).
Geologic map unit (-148.196635168686, 60.0932457025806)
Mineral deposit model Cyprus massive sulfide (Cox and Singer, 1986; model 24a)
Mineral deposit model number 24a
Age of mineralization Tertiary or younger; the mineralization is in rocks of the Orca Group of Tertiary age.
Alteration of deposit The mudstone is silicified, and the surface rock is leached and iron-stained (Kurtak and Jeske, 1986).

Production and reserves

Workings or exploration Workings consist of two adits and a 40- by 10-foot open cut. One adit is 220 feet long and the other is 405 feet (Smith, 1926). Samples collected from the 220-foot adit and the open cut contained between 23 ppm and 0.07 percent copper and a trace to 0.11 ppm gold (Kurtak and Jeske, 1986).
Indication of production None

References

MRDS Number A010528

References

Reporters Jeff A. Huber and Carol S. Huber (Anchorage)
Last report date 11/21/2000