Brown Bear; Old Harbor; Silver Queen; Barling Bay Prospect, Kodiak Mining District, Kodiak Island Borough, Alaska, USAi

Regional Level Types
Brown Bear; Old Harbor; Silver Queen; Barling Bay Prospect	Prospect
Kodiak Mining District	Mining District
Kodiak Island Borough	Borough
Alaska	State
USA	Country

Most of the area is on land conveyed to the Koniag Corporation.
Location: This prospect is located 0.3 mile north of triangulation station Love at the head of Barling Bay (Berg and Cobb, 1967, figure 15, locality 13; Cobb, 1972, MF 460, locality 5; McGee, 1972, locality 1; MacKevett and Holloway, 1977, locality 5) Site location is accurate to within 1/4 mile.
Geology: Three separate sulfide-bearing quartz veins, the Brown Bear, Old Harbor, and Silver Queen, cut Cretaceous metasedimentary rock. The Brown Bear vein, said to have been traced for several miles, strikes northeast, generally parallel to bedding. The dip is irregular and varies from 90 to 15 southeast. At one point the vein has a thickness of 15 feet. At another the vein splits into 3 bands 18 inches, 30 inches, and 6 feet in thickness. Assays of nine samples taken by Roehm ( 1936, PE 131-5) on the Brown Bear vein ranged from trace gold, trace silver over 32 inches to 0.58 ounce per ton gold and 0.30 ounce per ton silver over 12 inches. A basic dike, an aplite dike, and a porphyry dike crop out in the vicinity of the vein. The Old Harbor vein crops out approximately 400 feet above the Brown Bear. It averages 5 feet in thickness and is said to have been traced for 3000 feet. No descriptions of the Silver Queen vein are available.
Workings: The Brown Bear vein in 1936 had been developed by a 42-foot adit, a 23-foot adit and several open cuts. Open cuts and pits exposed some of the other veins. Nine samples taken by Roehm (1936, PE 131-5) on the Brown Bear vein assayed from trace gold and silver over 32 inches to 0.58 ounce per ton gold and 0.30 ounce per ton silver over 12 inches.
Age: Cretaceous or younger

Commodities (Major) - Ag, Au
Development Status: Undetermined.
Deposit Model: Chugach-type low-sulfide gold-quartz vein (Bliss, 1992; model 36a.1), turbidite

Other Databases

Link to USGS - Alaska:	KD029

Other Regions, Features and Areas containing this locality

References