Canning

Prospect, Inactive

Commodities and mineralogy

Main commodities Ag; Au; Cu
Ore minerals arsenopyrite; chalcopyrite; gold; pyrite
Gangue minerals calcite; quartz

Geographic location

Quadrangle map, 1:250,000-scale VA
Quadrangle map, 1:63,360-scale C-1
Latitude 61.6173
Longitude -144.144
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is located near lower Benito Creek; it is at an elevation of 2,600 feet in the SE1/4 section 9, T. 3 S., R. 7 E., of the Copper River Meridian. This prospect is approximately located, perhaps to within 1 mile. It is locality 74 of Cobb and Matson (1972) and locality 59 of Winkler and others (1981 [OFR 80-892-B]). Cobb (1979 [OFR 79-1241]) incuded this prospect under the name 'Elliot Cr.'.

Geologic setting

Geologic description

Quartz-calcite veins in mafic intrusive and metavolcanic rocks of the Paleozoic Skolai Group contain bornite, chalcopyrite, arsenopyrite, pyrite, and free gold. Secondary minerals include local malachite and azurite stains. The principal vein is 2 to 3 feet wide, strikes northwest, and dips steeply to the southeast (Moffit, 1921; Moffit and Mertie, 1923, p. 142-143). This vein has been traced over a distance of about 600 feet by five shallow holes and several open cuts produced by sluicing. It is extensively oxidized and gossanous at the surface. Other veins are present nearby, one of which may contain specular hematite. The Skolai Group is locally intruded by mafic to intermediate Jurassic plutons in this area. The veins postdate the Paleozoic Skolai Group and appear to postdate the Late Jurassic or Early Cretaceous deformation and metamorphism in the region (Winkler and others, 1981 [OFR 80-892-A; MacKevett and others, 1997).
Geologic map unit (-144.146094285733, 61.6168315194598)
Mineral deposit model Polymetallic veins? (Cox and Singer, 1986; model 22c)
Mineral deposit model number 22c?
Age of mineralization The veins postdate the Paleozoic Skolai Group and appear to postdate the Late Jurassic or Early Cretaceous deformation and metamorphism in the region (Winkler and others, 1981 [OFR 80-892-B]; MacKevett and others, 1997).
Alteration of deposit Oxidized; extensive development of iron oxides near the surface.

Production and reserves

Workings or exploration The principal vein at this prospect has been traced over a distance of about 600 feet by five shallow holes and several open cuts produced by sluicing.
Indication of production Undetermined

Additional comments

This prospect is within the Wrangell-St. Elias National Park.

References

MRDS Number A011522

References

Reporters Travis L. Hudson
Last report date 12/14/2001