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Bartholf

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Cu; Pb
Other commodities Barite
Ore minerals chalcopyrite; galena; pyrite; barite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale BC
Quadrangle map, 1:63,360-scale A-1
Latitude 56.088
Longitude -130.069
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Bartholf property, which apparently straddles the Alaska-British Columbia boundary, is mainly in British Columbia. It is in Sections 2 and 3 at an elevation of about 1430 feet, on the north side of a west-trending ridge about 0.6 mile north-northeast of Cantu Mountain (Elliott and Koch, 1981, p. 15, loc. 56).

Geologic setting

Geologic description

The country rock in the area of this occurrence is Triassic Texas Creek Granodiorite, which regionally underlies and locally intrudes pelitic metasedimentary and subordinate andesitic metavolcanic strata of the Jurassic or older Mesozoic Hazelton Group (Smith, 1977; Koch, 1996).
The deposit (Buddington, 1929, p. 92-93) consists of a quartz fissure vein, probably in granodiorite. The vein is as much as a foot thick (average is 6 inches thick) and contains disseminated chalcopyrite and local shoots of pyrite and galena; plates of barite are common.
Geologic map unit (-130.070705090086, 56.0877038010513)
Mineral deposit model Polymetallic veins (Cox and Singer, 1986; model 22c).
Mineral deposit model number 22c

Production and reserves

Indication of production None

Additional comments

Property originally staked in mid-1920s. Claims lie mainly on the Canadian side of the International Boundary.

References

MRDS Number A010246

References

Smith, J.G., 1977, Geology of the Ketchikan D-1 and Bradfield Canal A-1 quadrangles, Alaska: U.S. Geological Survey Bulletin 1425, 49 p., 1 plate.
Reporters H. C. Berg (Fullerton, California)
Last report date 5/17/1998