Galena Creek-West

Occurrence in Alaska, United States with commodities Zinc, Lead, Copper

Geologic information

Identification information

Deposit ID 10001759
MRDS ID A012546
Record type Site
Current site name Galena Creek-West

Geographic coordinates

Geographic coordinates: -142.04013, 68.37988 (WGS84)
Relative position Location plotted is locality 510 of Barker (1981, pl. A-3), on nose of spur ridge of Bear Mountain on west side of Galena Creek; known to within 500 ft (152.4 m).
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Zinc Primary
Lead Primary
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Malachite Ore
Sphalerite Ore
Quartz Gangue

Alteration

  • (Local) Weak propylitization.

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 Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Neruokpuk Formation;Kanayut And/Or Kekiktuk Formation;Kayak Shale;
    Rock description Neruokpuk Formation;Kanayut And/Or Kekiktuk Formation;Kayak Shale;
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Neruokpuk Formation;Neruokpuk Formation;Neruokpuk Formation
    Rock description Neruokpuk Formation;Neruokpuk Formation;Neruokpuk Formation

Nearby scientific data

(1) -142.04013, 68.37988

Comments on the geologic information

  • Geologic Description = Sphalerite and galena in widely scattered veins and replacements in hornfelsed and weakly propylitized siltstone, with subordinate greenstone and phyllite; sulfides present in 760 m by 1060 m area along ridge west of Galena Creek; more Zn than Pb in samples. Ag negligible; sulphides rare in phyllite, and malachite-staining common in greenstone. Older reports report presence of chalcopyrite in area. Geologic setting is structural dome containing Precambrian-Devonian siltstone, phyllite and greenstone which overly quartzite (possibly Neurokpuk Fm.) and are overlain by thick Devonian conglomerate (Kanayut and/or Kekiktuk Fm.) and Mississippian shale (Kayak Shale). Rocks intruded by Early Tertiary rhyolitic dikes; mineralization confined to greenstone-phyllite-siltstone unit; pyrite and Fe-oxides common along margins of rhyolite dikes (Barker, 1981, p. 33-40, 106-37).

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Sheenjek

Comments on the workings information

  • Workings / Exploration = High-grade sample 510 contains 24 ppm Cu, 13,000 ppm Pb, 35,000 ppm Zn, 2.7 ppm Ag, 10 ppm Mo; nearby samples 506-8 have up to 1000 ppm Cu, 2600 ppm Pb, 2600 ppm Zn, 0.6 ppm Ag, and 12 ppm Mo (Barker, 1981, p. 140).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012546
USGS Alaska Resource Data File ARDF TB002

Bibliographic references

  • 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

  • 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.

  • 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.

  • 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

  • Deposit

    U.S. Geological Survey, 1977, Geological Survey research, 1977: U.S. Geological Survey Professional Paper 1050, 411 p.

  • 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

  • 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.

  • 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.

Comments on the references

  • Primary Reference = Barker (1981)

General comments

Subject category Comment text
Deposit Model Name = Lode; polymetallic vein

Reporter information

Type Date Name Affiliation Comment
Reporter 20-SEP-1996 K.R. Leonard U.S. Geological Survey
Reporter 20-SEP-1996 D.F. Huber U.S. Geological Survey
Reporter 20-SEP-1996 J.M. Schmidt U.S. Geological Survey
Reporter 20-SEP-1996 J.H. Dover U.S. Geological Survey