Lakeview Prospect, Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi

Regional Level Types
Lakeview Prospect	Prospect
Valdez Creek Mining District	Mining District
Matanuska-Susitna Borough	Borough
Alaska	State
USA	Country

Location: The Lakeview prospect is at an elevation of about 3,150 feet on a knob just southeast of Hidden Lake in the valley of the Maclaren River. The prospect is about 500 feet northeast of the center of section 26, T. 19 S., R. 6 E., Fairbanks Meridian. The prospect corresponds to locality A20 of Kurtak and others (1992); it is Kardex site number KX68-45 (Heiner and Porter, 1972).
Geology: The rocks at the Lakeview prospect consist mainly of amygdaloidal basalt of Late Triassic age. The basalt is altered propylitically, and Kurtak and others (1992) speculated that local occurrences of copper minerals at the prospect are associated with a buried (?) shear zone. The Lakeview (or Lake View) claim of A.R. Ghezzi was located for gold, silver, and copper in 1955 (Saunders, 1957; Heiner and Porter, 1972). There are at least two copper-bearing zones 1 to 5 feet wide about 200 feet apart at the prospect. The mineralized zones consist of quartz-epidote veins that contain bornite, chalcopyrite, and, on the surface, malachite. Copper minerals also occur as amygdule fillings. A grab sample collected by the U.S. Bureau of Mines assayed 0.19 ounce of silver per ton and 2.88 percent copper; another sample contained 0.26 ounce silver per ton and 1.88 percent copper (Kurtak and others, 1992, p. 125-126). Although Mr. Ghezzi located his claims for gold, silver, and copper, the Bureau found almost no gold at the property.
Workings: Small pits were excavated by A.R. Ghezzi in 1955.
Age: Probably Cretaceous or early Tertiary (see MH060).
Alteration: Propylitic alteration of basalt.
Production: Possible small production during prospecting.

Commodities (Major) - Cu; (Minor) - Ag, Au
Development Status: Undetermined.
Deposit Model: Cu-Ag quartz -epidote veins typical of propylitically altered basalt. Basaltic

Other Databases

Link to USGS - Alaska:	MH084

Other Regions, Features and Areas containing this locality

References