Glacier

Prospect in Alaska, United States with commodities Silver, Gold, Copper, Lead, Molybdenum

Geologic information

Identification information

Deposit ID 10308772
MRDS ID A010209
Record type Site
Current site name Glacier
Alternate or previous names Banded Mountain
Related records 10282744, 10000173

Geographic coordinates

Geographic coordinates: -130.40176, 56.03977 (WGS84)
Relative position The site is in Section 27 on the northwest flank of Banded Mountain at an elevation of about 2700 feet (Elliott and Koch, 1981, p. 9, locs. 17a and 17b) This location is probably accurate to within about a half mile. Also see Additional Comments field, below.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Copper Primary
Lead Primary
Molybdenum Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Molybdenite Ore
Pyrite Ore
Pyrrhotite Ore
Quartz Gangue

Alteration

  • Local intense iron staining

Mineral occurrence model information

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

Nearby scientific data

(1) -130.40176, 56.03977

Comments on the geologic information

  • Geologic Description = The country rocks in the general area of this site are graywacke and andesitic tuff and breccia of the Jurassic or older Mesozoic Hazelton Group (Berg and others, 1977, p. 15, 40, 41, and plate 1). The deposit at the Glacier prospect (Buddington, 1929, p. 120-121) consists of quartz fissure veins as much as one foot thick in graywacke and subordinate andesite tuff and breccia that is cut by a Tertiary lamprophyre dike 3 feet thick. The veins contain pyrite, small amounts of pyrrhotite and chalcopyrite, and rarely, galena. Assays showed 0.04 oz Au and 6 oz Ag per ton and 3% Cu. Quartz float near the Glacier prospect that may have come from the Glacier or similar veins contain pyrite, chalcopyrite, and molybdenite. In 1972-73, a U.S. Bureau of Mines field team searched for, but could not locate, this prospect (Berg and others, 1977, p. 41).In 1972-73, a U. S, Bureau of Mines field team (Berg, 1977, p. 132-133) investigated a vivid iron-stained zone in the cliffs at an elevation of about 3000-4300 feet on the northwest side of Banded Mountain about one mile due west of the summit. Hazelton Group gneiss and schist in the iron-stained zone contain up to 2% pyrite and pyrrhotite. Assays of chip samples of the zone showed 10-60 ppm Cu, 10-15 ppm Pb, 30-150 ppm Zn, and up to 10 ppm Mo.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Hyder

Comments on the workings information

  • Workings / Exploration = Workings on the Glacier prospect included surface stripping and an 8-foot adit (Buddington, 1929, p. 120-121). Early assays showed 0.04 oz Au and 6 oz Ag per ton and 3% Cu. Assays of chip samples of an iron-stained zone taken by the U.S. Bureau of Mines in 1972-3 showed 10-60 ppm Cu, 10-15 ppm Pb, 30-150 ppm Zn, and up to 10 ppm Mo.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF BC017
USGS Mineral Resources Data System MRDS A010206
USGS Mineral Resources Data System MRDS A010209

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, P.S., 1932, Mineral industry of Alaska in 1929, in Smith, P.S., and others, Mineral Resources of Alaska in 1929: U.S. Geological Survey Bulletin 824, p. 83-109.

  • Deposit

    Smith, P.S., 1933, Mineral industry of Alaska in 1930: U.S. Geological Survey Bulletin 836-A, p. 1-83.

  • Deposit

    Smith, P.S., 1933, Mineral industry of Alaska in 1931: U.S. Geological Survey Bulletin 844-A, p. 1-81.

  • Deposit

    Smith, P.S., 1934, Mineral industry of Alaska in 1932: U.S. Geological Survey Bulletin 857-A, p. 1-91.

  • Deposit

    Berg, H.C., Elliott, R.L., Smith, J.G., Pittman, T.L., and Kimball, A. L., 1977, Mineral resources of the Granite Fiords wilderness study area, Alaska, with a section on aeromagnetic data by Andrew Griscom: U.S. Geological Survey Bulletin 1403, 151 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

    Smith, P.S., 1934, Mineral industry of Alaska in 1933: U.S. Geological Survey Bulletin 864-A, p. 1-94.

Comments on the references

  • Primary Reference = Buddington, 1929

General comments

Subject category Comment text
Deposit Model Name = Polymetallic veins
Deposit Other Comments = Site is in Misty Fiords National Monument. Some of the early publications describing this site are vague or ambiguous [Smith, 1932 (B824, p 17); 1933 (B836, p.15; B844-A, p. 17); 1934 (B857-A, p. 16; B864-A, p. 16)]. Elliott and Koch (1981, p. 9) describe Glacier (Banded Mountain?) (Loc. 17a) and Banded Mountain (Glacier?) (Loc. 17b) separately, but assign both prospects identical map coordinates. This record assigns them the same ARDF number, but otherwise follows Elliott and Koch. Early publications (Smith, 1932, 1933, 1934) that include vague references to lode prospects on the northwest side of Banded Mountain probably refer to the Glacier prospect. These prospects also were referred to as the Metcalf and Fin(d)ley claims.

Reporter information

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