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Mariposa Ridge Occurrence

Occurrence in Alaska, United States with commodities Lead, Zinc, Silver, Barium-Barite, Gold
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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. Land status
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10001345
MRDS ID A012086
Record type Site
Current site name Mariposa Ridge Occurrence

Geographic coordinates

Geographic coordinates: -134.677, 58.09835 (WGS84)
Location accuracy 2000(meters)

Site location context

Political divisions (FIPS codes)

Juneau(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Juneau A-3(quadrangle 1:63,360 scale)

Juneau SE(quadrangle 1:100,000 scale)

Juneau(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Admiralty Island(hydrologic unit)

Central Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Admiralty Island National Monument(National Monument)

National Monument FS(Type of land area)

FS(Federal land areas administered by FS)

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

  • APPROXIMATED FROM USGS OFR 85-717, NO. J079 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Primary
Barium-Barite Critical Secondary
Gold Tertiary

Materials information

Materials Type of material
Quartz Gangue

Analytical data

Result VEIN SAMPLE: 0.7% PB, 0.3% ZN, 0.25 PPM AG
Result META-VOLCANIC SAMPLE: 0.5% BA,TR,AS,AG,AU

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

(1) -134.677, 58.09835
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No
Discovery year 1983

Mining district

District name Admiralty

Land status

Ownership category National Forest

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit SHEAR ZONE IN DOLOMITE WITH MARIPOSITE AND QUARTZ STRINGERS; NEARBY META-VOLCANIC UNIT ALSO SHEARED AND SPARSELY MINERALIZED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1986 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 14-APR-1994 Mosier, Dan 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.