Wagner

Prospect, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale CV
Quadrangle map, 1:63,360-scale D-8
Latitude 60.8899
Longitude -146.6434
Nearby scientific data Find additional scientific data near this location
Location and accuracy The adit of the Wagner prospect is at the 300 foot elevation on the west side of Boulder Bay. The site is in the NE1/4 sec. 28, T. 11 S., R 8 W., of the Copper River Meridian. The location is accurate to within 500 ft. This prospect is shown as #6 in Cobb (1972: MF-392) and as C-89 in Jansons and others (1984).

Geologic setting

Geologic description

The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of the Tertiary Orca Group (Nelson and others, 1985). The deposit consists of quartz-chalcopyrite lenses in a shear zone in graywacke (Cobb, 1979: OFR 79-973).
Workings visible in the 1980s consisted of one caved adit (Jansons and others, 1984), originally reported to be 285 feet long (Cobb, 1979: OFR 79-973). A selected grab sample from the dump contained 39 ppm Cu (Jansons and others, 1984).
Geologic map unit (-146.645411937171, 60.889357214228)
Mineral deposit model Cyprus massive sulfide (Cox and Singer, 1986; model 24a)
Mineral deposit model number 24a
Age of mineralization Probably Tertiary based on the age of the host rocks.

Production and reserves

Workings or exploration Workings visible in the 1980s consisted of one caved adit (Jansons and others, 1984), originally reported to be 285 feet long (Cobb, 1979: OFR 79-973). A selected grab sample from the dump contained 39 ppm Cu (Jansons and others, 1984).
Indication of production None

Additional comments

Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area.
Chugach Alaska Corporation, Anchorage, Alaska has control of these lands.
This site is shown as a 'mine' on the map. Since there was no production from this deposit it is designated herein as a 'prospect.'

References

MRDS Number A010441

References

Sainsbury, C.L., 1993, Geology and geochemistry of volcanogenic massive sulfide deposits and related igneous rocks, Prince William Sound, south-central Alaska, A discussion: Economic Geology, v. 88, p. 1284-1285.
Reporters S.W. Nelson, Anchorage, AK
Last report date 6/10/2000