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Snipe Bay Nickel-Copper Prospect

Occurrence in Alaska, United States with commodities Nickel, Copper, 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. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10002448
MRDS ID A013373
Record type Site
Current site name Snipe Bay Nickel-Copper Prospect
Related records 10185938

Geographic coordinates

Geographic coordinates: -134.95748, 56.42388 (WGS84)
Elevation 171
Location accuracy 500(meters)
Relative position 0.5 MI. N OF N ENTRANCE TO SNIPE BAY

Site location context

Political divisions (FIPS codes)

Sitka(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Port Alexander B-3(quadrangle 1:63,360 scale)

Port Alexander SE(quadrangle 1:100,000 scale)

Port Alexander(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Tongass National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-464, LOC. 15 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Nickel Critical Primary
Copper Primary
Silver Tertiary

Comments on the commodity information

  • USGS B 773, P. 107 REPORTS UP TO 0.13 OZ/TON AG, BUT NOT MENTIONED IN LATER REPORTS.

Materials information

Materials Type of material
Chalcopyrite Ore
Pentlandite Ore
Apatite Gangue
Hornblende Gangue
Magnetite Gangue
Plagioclase Gangue
Pyrite Gangue
Pyrrhotite Gangue

Analytical data

Result HIGH GRADE SAMPLES CONTAIN UP TO 4.08% NI, 3.44% CU
Result AVERAGE GRADE 0.3% NI, CU-USGS B 936-M, P.329

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite

Nearby scientific data

(1) -134.95748, 56.42388
ListMap

Economic information

Ore body information

  • Length 80.77M
    Width 38.1M

Comments on the geologic information

  • TERTIARY IGNEOUS INTRUSIVE (ALTERED GABBRO OR NORITE) IN CRETACEOUS BIOTITIC QUARTITE AND BIOTITE-QUARTZ SCHIST.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1922
Discoverer I. Myre Hofstad

Mining district

District name Chichagof

Land status

Ownership category National Forest

Comments on the reserve resource information

  • ESTIMATED RESERVES OF 430,000 TONS OF ORE AT AVERAGE GRADE OF 0.3% NI AND 0.3% CU, ACCORDING TO USGS B 936-M, P. 328, 329 (ESTIMATE IS VERY CONSERVATIVE).

Workings at the site

  • Type of workings Surface
    Overall length 80.77M
    Overall width 38.1M

Comments on the workings information

  • SEVERAL PROSPECT PITS WERE DUG.

Comments on development

  • 4 CLAIMS LOCATED IN 1922 BY I. MYRE HOFSTAD, 6 MORE CLAIMS STAKED IN 1939 BY S. H. P. VEVELSTAD, WHO OWNED ALL CLAIMS AS OF 1942. PROSPECT PITS DUG, BUT NO PRODUCTION OR OTHER DEVELOPMENT.

Reference information

Bibliographic references

  • Deposit

    USGS MF-446, LOC. 15 (1972)

  • Deposit

    USGS B 936-M (1942)

  • Deposit

    USGS OF 78-787, P. 26, 27 (1978)

  • Other Database

    BAG-MF-464-15

General comments

Subject category Comment text
Deposit MAGNETITE, PENTLANDITE, CHALCOPYRITE, PYRITE, AND PYRRHOTITE IRREGULARLY DISTRIBUTED IN HORNBLENDITE BODY (PROBABLY ALTERED GABBRO OR NORITE) THAT INTRUDED QUARTZITE AND SCHIST. ORE BODY IS POORLY EXPOSED, AND IS AT LEAST 265 FT. LONG BEFORE DISAPPEARING UNDER ROCK AND SOIL. WIDTH IS AT LEAST 125 FT. DEPOSIT CONTAINS DISSEMINATED BLEBS AND VEINLETS OF SULFIDES, AND A MASSIVE SULFIDE BODY 12 FT. LONG BY 4 FT. WIDE, ELLIPTICAL IN SHAPE.
Deposit DEPOSIT POORLY EXPLORED. ; INFO.SRC : 1 PUB LIT
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-87 Niles, L.P. (Huber, D.F.) U.S. Geological Survey

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.