1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed (Blue Mouse Cove)

Occurrence in Alaska, United States with commodities Lead, Zinc, Silver
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10002266
MRDS ID A013169
Record type Site
Current site name Unnamed (Blue Mouse Cove)

Geographic coordinates

Geographic coordinates: -136.49099, 58.79666 (WGS84)
Relative position The general location is near sealevel on the far southeastern point of Gilbert Peninsula north of Blue Mouse Cove. The exact location is uncertain but may instead be about 0.25 mile northwest of the coordinate position, also near sea level. The location is number 37 of Cobb (1972).

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Fairweather D-2 SE(quadrangle 1:24,000 scale)

Juneau NW(quadrangle 1:100,000 scale)

Mount Fairweather(quadrangle 1:250,000 scale)

Federal lands

Glacier Bay National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Galena Ore
Sphalerite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -136.49099, 58.79666
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The area is underlain by granodiorite and quartz diorite of Cretaceous age, separated from other granite by a strong fault of northwest strike about 0.5 mile west of the occurrence (Brew and others, 1978, pl. 1A). Mineralization occurs in steep faults and shear zones that strike east-northeast strike and locally contain andesite dikes. MacKevett and others (1971, table 9) reported quartz-calcite veins as much as 1.5 feet thick within a 12-foot-thick shear zone. A 2-foot sample contained 1 ppm silver, 200 ppm copper, 300 ppm lead, and 700 ppm zinc. Bureau of Mines samples of a second zone contained as much as 7 ppm silver, 680 ppm zinc, 220 ppm lead and 3000 ppm arsenic (Kimball and others, 1978, p. C248-249). Two or more vein zones are inferred by Kimball and others (1978); the one they sampled is at least 1000-feet long.?The vein zone was at least 1000 feet long. ? the presence of weak lead-zinc values, and anomalous amounts of silver in quartz-calcite vein, suggests that the veins are distal structures related, generally, to Cretaceous or younger intrusive activity.
  • Age = Probably Cretaceous.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Juneau

Comments on the workings information

  • Workings / Exploration = There are no workings. A Geological Survey selected 2-foot sample contained 1 ppm silver, 200 ppm copper, 300 ppm lead, and 700 ppm zinc (MacKevett and others (1971, table 9). The sample reported by Kimball and others (1978) from about the same locality contained 3000 ppm arsenic, 7 ppm silver, 220 ppm lead, and 680 ppm zinc. The vein sampled by the Bureau of Mines is projected for more than 1000 feet.

Reference information

Bibliographic references

  • Deposit

    MacKevett, E.M., Jr., Brew, D.A., Hawley, C.C., Huff, L.C., and Smith, J.G., 1971, Mineral resources of Glacier Bay National Monument, Alaska: U.S. Geological Survey Professional Paper 632, 90 p., 12 plates, scale 1:250,000.

  • Deposit

    Brew, D.A., Johnson, B.R., Grybeck, D., Griscom, A., Barnes, D.F., Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources of the Glacier Bay National Monument Wilderness Study Area, Alaska: U.S. Geological Survey Open-File Report 78-494, 670 p.

  • Deposit

    Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources, in Brew, D. A., and others, Mineral resources of the Glacier Bay National Monument wilderness study area, Alaska: U.S. Geological Survey Open-File Report 78-494, p. C1-C375.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Mount Fairweather quadrangle, AK: U.S. Geological Survey Miscellaneous Field Study Map MF-436, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = MacKevett and others, 1971; Kimball and others, 1978

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide quartz-calcite veins.
Deposit Other Comments = Veins are possible distal structures related to Cretaceous or younger magmatism. Because of their strength and type of mineralization, they deserve more work. ? the site is in Glacier Bay National Park and Preserve.

Reporter information

Type Date Name Affiliation Comment
Reporter 13-APR-99 Hawley, C.C. Hawley Resource Group

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.