Prospect, Undetermined

Commodities and mineralogy

Main commodities Cu; Pb; Zn

Geographic location

Quadrangle map, 1:250,000-scale KC
Quadrangle map, 1:63,360-scale C-4
Latitude 55.581
Longitude -131.185
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is known only from U.S. Bureau of Mines (1977) claim records. Its approximate location is at an elevation of about 2500 feet, about 2.5 miles west of the tidal mudflat at the head of the west arm of Manzanita Lake. The site is in section 32, T. 72 S., R. 93 E., of the Copper River Meridian. It corresponds to loc. 50 in Elliott and others (1978). The location probably is accurate within 0.2 mile.

Geologic setting

Geologic description

The country rocks near this prospect are pelitic schist and gneiss, and subordinate andesitic and basaltic metavolcanic rocks, that are intruded by Cretaceous stocks, sills, and dikes of feldspar-porphyritic granodiorite, and by small metadiorite plutons of undetermined age (Berg and others, 1988). The strata were regionally metamorphosed to upper greenschist or amphibolite grade in Cretaceous time, and, near some of the granodiorite contacts, subsequently contact metamorphosed to hornblende hornfels. The premetamorphic age range of the strata is unknown. Berg and others (1988, p. 17) assigned them an undivided Mesozoic or Paleozoic age. More recent studies suggest that at least some of the strata may be as old as Precambrian (Crawford and others, 2000).
According to U.S. Bureau of Mines claim records (1977), this prospect, which appears to be in pelitic schist near a granodiorite contact, was staked for Cu, Pb, and Zn. No other information about it has been made public.
Geologic map unit (-131.186697806662, 55.5806532615606)

Production and reserves

Indication of production None

Additional comments

The site is in Misty Fiords National Monument Wilderness.