Alaska Nose Prospect, Ketchikan Gateway Borough, Alaska, USAi

Regional Level Types
Alaska Nose Prospect	Prospect
Ketchikan Gateway Borough	Borough
Alaska	State
USA	Country

Location: The Alaska Nose prospect is just above the shoreline, about 0.8 mile south-southeast of Sunshine Island; it is about 0.4 mile west-northwest of the southeast corner of section 9, T. 70 S., R. 87 E.
Geology: The Alaska Nose prospect consists of an old trench and a 13-foot shaft that seem to have escaped mention in the literature prior to their location by Maas and others (1993). The deposit consists of two sets of quartz veins in alaskite of Cretaceous age (Brew, 1996). One set of veins strikes N35E and dips 75NW; the other strikes N30W and dips 72NE. Galena, sphalerite, and pyrite occur in and along the margins of the veins which are up to 12 inches thick. A select sample from a well-mineralized portion of a vein contained 237 parts per billion gold, 88 parts per million (ppm) silver, 2,921 ppm zinc, and 2.35 percent lead.
Workings: The Alaska Nose prospect consists of an old trench and a 13-foot shaft that seem to have escaped mention in the literature prior to their location by Maas and others (1993).
Age: Quartz veins cut Cretaceous alaskite.

Commodities (Major) - Ag, Au, Pb, Zn
Development Status: None
Deposit Model: Polymetallic quartz vein (Cox and Singer, 1986, model 22c).

Other Databases

Link to USGS - Alaska:	CR008

Other Regions, Features and Areas containing this locality

References