Tarr Inlet West

Occurrence in Alaska, United States with commodities Copper, Silver, Zinc

Geologic information

Identification information

Deposit ID 10136724
MRDS ID A002118
MAS/MILS ID 0021110011
Record type Site
Current site name Tarr Inlet West
Alternate or previous names West Side Tarr Inlet, Locality No. 63, West of Tarr Inlet

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -137.00212, 58.98002 (WGS84)
Elevation 518
Location accuracy 500(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 033 S 050 E 25 SESENW Alaska

Commodities

Commodity Importance
Copper Primary
Silver Tertiary
Zinc Tertiary

Materials information

Materials Type of material
Chalcopyrite Unknown
Pyrite Unknown

Nearby scientific data

Ore Body (1) -137.00212, 58.98002

Ore body information

  • Area 1HA
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control FRACTURING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 PYRITIZATION
    Total Surface Area (HA) 1
    Date of Last Modification 830408

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1966

Mining district

District name Juneau District

Mineral rights holdings

Type of mineral rights Minerals Only

Land status

Ownership category National Wilderness

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0021110011
USGS Mineral Resources Data System MRDS A002118 MAS references MRDS

Bibliographic references

  • Deposit

    OF280

  • Deposit

    P632 pp. 38, 40-41, 51, 55

  • Deposit

    MF436

  • Deposit

    OF78-494 p. C171, plates 1A, 1B, 2

General comments

Subject category Comment text
Deposit NO ALASKA KARDEX. COMPOSED OF DISSEMINATED SULFIDES & QTZ VEINLETS OCCURRING IN SILICEOUS LENSES HOSTED IN LEUCOCRATIC GRANITIC ROCKS. SULFIDES: PYRITE & SUBORDINATE CHALCOPYRITE. VALUES: 1000 PPM CU, 300 PPM ZN, TRACE AG. NO ALASKA KARDEX.

Reporter information

Type Date Name Affiliation Comment
Reporter 12-FEB-1988 Wlg U.S. Bureau of Mines