Unnamed Occurrence

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

Geologic information

Identification information

Deposit ID 10001223
MRDS ID A011936
Record type Site
Current site name Unnamed Occurrence
Alternate or previous names Mathews Dome

Geographic coordinates

Geographic coordinates: -151.48255, 67.473 (WGS84)
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • BEST LOCATION: ADGGS GC 25, SAMPLE 135 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
Gold Tertiary
Silver Tertiary

Materials information

Materials Type of material
Bornite Ore
Malachite Ore

Analytical data

Result UP TO .1 PPM AU, 0.3-4.1 PPM AG, 18-6900 PPM CU, ADGGS GC 25, TABLE 1, SAMPLES 134-6

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -151.48255, 67.473

Comments on the geologic information

  • BEDROCK MAPPED AS DEVONIAN PHYLLITE AND SCHIST UNIT WITH LIMESTONE MEMBER

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Koyukuk

Land status

Ownership category State

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011936

Bibliographic references

  • Deposit

    ADGGS GC 25, SAMPLES 134-136

  • Deposit

    ADGGS OFR 133 B, SAMPLE 500

General comments

Subject category Comment text
Deposit VISIBLE BORNITE AND MALACHITE IN SAMPLES OF CALC-SCHIST AND VEIN QUARTZ; TRACE PRECIOUS METAL VALVES DETECTED IN ANALYSIS
Deposit MINOR CU OCCURRENCE WITH TRACE PRECIOUS METAL CONTENT; SEE ALSO: LAKE CREEK PLACER ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1986 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey