Iron Cap Prospect

Occurrence in Alaska, United States with commodities Copper, Iron, Gold, Silver

Geologic information

Identification information

Deposit ID 10000087
MRDS ID A010105
Record type Site
Current site name Iron Cap Prospect
Alternate or previous names Iron Crown

Geographic coordinates

Geographic coordinates: -132.39209, 55.64834 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • NEAR TOLSTOL MOUNTAIN 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
Iron Secondary
Gold Tertiary
Silver Tertiary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Gold Ore
Magnetite Ore
Calcite Gangue
Epidote Gangue
Garnet Gangue
Quartz Gangue

Analytical data

Result 39.9% TO 63.9% FE
Result 0.24% TO 1.88% CU
Result 0.4 TO 0.6 OZ/TON AG

Host and associated rocks

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

Nearby scientific data

(1) -132.39209, 55.64834

Ore body information

  • Width 152.4M
    Length 609.6M

Controls for ore emplacement

  • Mineralization At Contact Of Intrusive And Metamorphic Rocks

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Comments on the workings information

  • SEVERAL HUNDRED FEET OF DIAMOND DRILLING AS WELL AS ADITS & TRENCHES

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010105

Comments on the other database information

  • RECORD NUMBER W062098 IS A POTENTIAL DUPLICATE OF THIS RECORD

Bibliographic references

  • Deposit

    USGS PROFESSIONAL PAPER 1, P.104

  • Deposit

    USGS BULL 347, P. 126-127.

  • Deposit

    USBM REPORT OF INVESTIGATIONS 4373, P. 101.

  • Deposit

    USGS BULL 1090, P. 5, 31-32, 37, 43, 45, 106-112.

  • Deposit

    USGS MF 433.

  • Deposit

    USGS OF 78-869, P. 96-97.

General comments

Subject category Comment text
Deposit SMALL MAGNETITE BODIES IN CONTACT ZONE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1983 Hirschmann, M. M. (Elliott, R. L.) U.S. Geological Survey
Editor 12-APR-1994 Mosier, Dan U.S. Geological Survey