Carlson Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
Carlson Prospect	Prospect
Prince William Sound Mining District	Mining District
Valdez-Cordova Census Area	Census Area
Alaska	State
USA	Country

A. M. Bateman, a consultant for Kennecott Copper Company, investigated this property. His report (Bateman, 1928) is available on request from the Minerals Division, Bureau of Land Management, Anchorage, Alaska. This site has also been called Carlson Property Latouche Island Copper Mining Co.
Location: The prospect is located in the SW1/4 section 36, T. 1 S., R. 9 E., of the Seward Meridian, at an elevation of 60 feet. It is 1.6 miles southeast of Gibbon Peak on Latouche Island. This is location 263 of Tysdal (1978 [MF-880-A]) and location S-12 of Jansons and others (1984). This location is accurate to within a quarter of a mile.
Geology: The prospect consists of a shear zone that trends N29E and dips 75W; it is roughly parallel to the strike of the graywacke (Kurtak and Jeske, 1986) Nelson and others (1985) mapped this area as Orca Group of early Teriary age. Within the shear zone, pyrrhotite, pyrite, and chalcopyrite occur in a massive zone as much as 1 foot wide and in stringer zones as much as 5 feet wide. The mineralization can be traced for 200 feet along the zone trend. Drag folds affect both the graywacke and massive sulfide stringers associated with the shear zone (Hoekzema and Sherman, 1983). Workings on the prospect consist of a 100-foot adit that is mostly submerged at high tide. A shaft was sunk on a cliff at 60 feet above high tide; it later flooded (Bateman, 1928). The U.S. Bureau of Mines visited the prospect in 1985 but found no signs of workings (Kurtak and Jeske, 1986). They collected three chip samples from the shear zone and one from mineralized graywacke. The samples contained from 0.7 percent to 2.5 percent copper and from 0.92 ppm to 20 ppm silver (Kurtak and Jeske, 1986).
Workings: Workings on the prospect consist of a 100-foot adit that is mostly submerged at high tide. A shaft was sunk on a cliff 60 feet above high tide; it later flooded (Bateman, 1928). The U.S. Bureau of Mines visited the prospect in 1985 but found no signs of workings (Kurtak and Jeske, 1986). They collected three chip samples from the shear zone and one from mineralized graywacke. The samples contained from 0.7 percent to 2.5 percent copper and from 0.92 ppm to 20 ppm silver (Kurtak and Jeske, 1986).
Age: Tertiary or younger; the mineralization is in rocks of the Orca Group of Tertiary age.

Commodities (Major) - Ag, Cu
Development Status: None
Deposit Model: Besshi massive sulfide (Cox and Singer, 1986; model 24b)

Other Databases

Link to USGS - Alaska:	SR317

Other Regions, Features and Areas containing this locality

References