1. Mineral Resources
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  3. Mineral Resource Data System (MRDS)

South Arm 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 10000388
MRDS ID A010537
Record type Site
Current site name South Arm Occurrence
Related records 10136746

Geographic coordinates

Geographic coordinates: -147.69725, 60.36956 (WGS84)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Seward B-2 SW(quadrangle 1:24,000 scale)

Seward SE(quadrangle 1:100,000 scale)

Seward(quadrangle 1:250,000 scale)

Federal lands

Chugach Alaska Corporation(ANCSA Region)

ANCSA Region NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Chugach 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

  • DEPOSIT NUMBER IS THE MAP LOCATION NUMBER FROM MF-880A. 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
Chalcopyrite Ore
Pyrrhotite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Rock unit name Orca Group
    Rock description Orca Group
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene

Nearby scientific data

(1) -147.69725, 60.36956
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ZONE OF DISSEMINATED PYRRHOTITE AND MINOR CHALCOPYRITE IN SLATE ATNOSE OF BOUDIN LIKE INCLUSION OF CHERT
Deposit NOT OF ECONOMIC SIGNIFICANCE, BUT A GOOD EXAMPLE OF STRUCTURAL CONTROL OF MORE DEPOSITS ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1984 Hirschmann, M. M. (Elliott, R. L.) 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.