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Silver Bar

Occurrence in Alaska, United States with commodities Copper, Lead, Barium-Barite
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Geologic information

Identification information

Deposit ID 10000210
MRDS ID A010247
Record type Site
Current site name Silver Bar
Alternate or previous names McVey
Related records 10161187

Geographic coordinates

Geographic coordinates: -130.14564, 56.06088 (WGS84)
Relative position The Silver Bar occurrence is in Section 17 at an elevation of about 1950 feet. It is on a south-facing mountainside about 0.3 mile north of the West Fork of Texas Creek (Elliott and Koch, 1981, p. 15, loc. 55). The location is accurate within about a quarter of a mile.? Also see Additional Comments field, below.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Lead Primary
Barium-Barite Secondary

Materials information

Materials Type of material
Barite Ore
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Quartz Gangue

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Texas Creek
    Rock description Texas Creek
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -130.14564, 56.06088
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Comments on the geologic information

  • 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 andesitic metavolcanic strata of the Jurassic or older Mesozoic Hazelton Group (Smith, 1977; Koch, 1996).? the deposit (Buddington, 1929, p. 93) consists of a quartz vein up to 3 feet thick in a shear zone in granodiorite. The vein, exposed in outcrop for 250-300 feet, is mostly barren, but locally contains pockets and bands of chalcopyrite, minor galena and pyrite, and barite.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Hyder

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010247
USGS Alaska Resource Data File ARDF BC055

Bibliographic references

  • Deposit

    Buddington, A.F., 1929, Geology of Hyder and vicinity, southeastern Alaska, with a reconnaissance of Chickamin River: U.S. Geological Survey Bulletin 807, 124 p.

  • Deposit

    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.

  • Deposit

    Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-922, 98 p.

  • Deposit

    Elliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360.

  • Deposit

    Koch, R.D., 1996, Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-A, 35 p., 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Buddington, 1929

General comments

Subject category Comment text
Deposit Model Name = Polymetallic veins
Deposit Other Comments = Occurrence originally staked in 1923.? Some descriptions of this occurrence also include references to the McVey claims (Cobb, 1978, p. 70).

Reporter information

Type Date Name Affiliation Comment
Reporter 17-MAY-1998 H. C. Berg U.S. Geological Survey