Galena Creek - East

The Galena Creek - East is a copper, barium-barite, silver, and lead mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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Site Name

Primary: Galena Creek - East

Commodity

Primary: Copper
Primary: Barium-Barite
Primary: Silver
Primary: Lead

Location

State: Alaska
District: Sheenjek

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Intensely propylitized locally

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Barite
Ore: Chalcopyrite
Ore: Malachite
Ore: Silver
Ore: Galena

Comments

Comment (Commodity): Ore Material = argentiferous galena

Comment (Reference): Primary Reference = Barker (1981)

Comment (Workings): Workings / Exploration = Rock sample 2502 has massive galena and barite, and contains 21% Cu, 1.2% Pb, 5500 ppm Zn, 170 ppm Ag, and 33 ppm Mo, nearby samples 2511 and 2512 have up to 10.3% Cu, 1.1% Pb, 1200 ppm Zn, 3.3 ppm Ag, and 22 ppm Mo (Barker, 1981, p. 140).

Comment (Geology): Geologic Description = Well-defined northwest-trending quartz vein system about 6.5 ft (2 m) wide by 1500 ft (454 m) long, contains massive galena, malachite and barite; altered calcareous siltstone host rock contains minor disseminated galena and malachite. Vein contains up to 21% Cu, though malachite is the only Cu mineral noted in more recent reports; older reports list presence of chalcopyrite in greenstone in general vicinity. Geologic setting is structural dome containing Precambrian-Devonian siltstone, phyllite and greenstone which overlie quartzite (possibly Neurokpuk Fm.) and are overlain by thick Devonian conglomerate (Kanayut and/or Kekiktuk Fm.) and Mississippian shale (Kayak Shale). Siltstone more calcareous and less hornfelsed, and has more associated greenstone than bedrock west of Galena Cr. (TB002), and has more intense but less widespread propylitic alteration. Vein system follows contact with underlying massive white quartzite (Barker, 1981, p. 33-40, 106-137).

Comment (Deposit): Model Name = Lode; polymetallic vein

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Cobb, E.H., Mayfield, C.F., and Brosge, W.P., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in eleven quadrangles in northern Alaska (Arctic, Baird Mountains, Chandler Lake, DeLong Mountains, Demarcation Point, Howard Pass, Misheguk Mountain, Mount Michelson, Noatak, Point Lay, and Table Mountain); Supplement to Open-File Report 75-628; Part A, Summaries of data to January 1, 1981: U.S. Geological Survey Open-File Report 81-767-A, 25 p.

Reference (Deposit): Brosge', W.P., and Reiser, H.N., 1976, Preliminary geologic and mineral resource maps (excluding petroleum), Arctic National Wildlife Range, Alaska: U.S. Geological Survey Open-File Report 76-539, 4 sheets, scale 1:500,000.

Reference (Deposit): Barker, J.C., 1978, Mineral Investigations of certain lands in the eastern Brooks Range: a summary report: US Bureau of Mines Open-File No. 63-78

Reference (Deposit): Grybeck, D.J., 1977, Known mineral deposits of the Brooks Range, Alaska: US Geological Survey Open-File Report 77-166C, 41 p., 1 sheet, scale 1:1,000,000.

Reference (Deposit): Brosgi, W.P., and Reiser, H.N., 1977, Lead-zinc mineralization at Bear Mountain, southeastern Brooks Range, in Blean, K.M., ed., The United States Geological Survey in Alaska: Accomplishments during 1976: U.S. Geological Survey Circular 751-B, p. B8-B10

Reference (Deposit): Hartman, D.C., 1973, Geology and mineral evaluation of the Arctic Wildlife Range, northeast Alaska: Alaska Division of Geological and Geophysical Surveys Open-File Report 22, 16 p., 1 over-size sheet, scale 1:500,000

Reference (Deposit): Brosgi, W.R., and Reiser, H.N., 1968, Geochemical maps of granitic rocks, Coleen and Table Mountain quadrangles, Alaska: U.S. Geological Survey Open-File Report 323, scale 1:250,000.

Reference (Deposit): U.S. Geological Survey, 1977, Geological Survey research, 1977: U.S. Geological Survey Professional Paper 1050, 411 p.

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