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  3. Mineral Resource Data System (MRDS)

Kelp Bay, Middle Arm Copper Occurrence

Occurrence in Alaska, United States with commodity Copper
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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. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10002390
MRDS ID A013308
Record type Site
Current site name Kelp Bay, Middle Arm Copper Occurrence

Geographic coordinates

Geographic coordinates: -134.99447, 57.3325 (WGS84)
Location accuracy 250(meters)
Relative position ON S SHORE OF MIDDLE ARM, 3 MI. E OF PORTAGE PT.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sitka B-3 SW(quadrangle 1:24,000 scale)

Sitka SE(quadrangle 1:100,000 scale)

Sitka(quadrangle 1:250,000 scale)

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 I-388, SAMPLE LOC. 6; USGS MF-467, LOC. 62 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Covellite Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock

Nearby scientific data

(1) -134.99447, 57.3325
ListMap

Economic information

Comments on the geologic information

  • MELANGE (ASSORTED METAMORPHIC SEDIMENTARY AND VOLCANIC ROCKS).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1961
Discoverer Loney And Others

Comments on development

  • SAMPLED BETWEEN 1956 AND 1961 FOR USGS I-388

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit PYRITE, CHALCOPYRITE, COVELLITE, BORNITE, AND FINE DISSEMINATED GRAY SULFIDE IN IRON-STAINED QUARTZ VEIN.
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-JUN-1987 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey
Editor 14-SEP-1994 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey PARSED OUT HOST ROCK AND ASSOCIATED ROCK TYPES, AGES, UNIT NAMES, AND UNIT AGES.

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.