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Tanana Prospect

Occurrence in Alaska, United States with commodities Gold, Tungsten
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Geologic information

Identification information

Deposit ID 10002822
MRDS ID A015294
Record type Site
Current site name Tanana Prospect

Geographic coordinates

Geographic coordinates: -147.53212, 64.95189 (WGS84)
Location accuracy 250(meters)
Relative position ABOUT 9.5 MILES NE OF FAIRBANKS
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-410, LOC. 27. DEPOSIT ALONG THE NE SIDE OF TUNGSTEN GULCH, A HEADWATER TRIBUTARY OF FIRST CHANCE CREEK. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Gold Primary
Tungsten Primary

Materials information

Materials Type of material
Gold Ore
Scheelite Ore

Alteration

  • (Local) Schist Soft, Decomposed, And Iron Stained

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -147.53212, 64.95189
ListMap

Comments on the geologic information

  • PROSPECT IS ON THE WESTERN PERIPHERY OF LARGE PORPHYRITIC GRANITE BODY. CLEAVAGE OF SCHIST STRIKES N 30 E, DIPS 35 NW. STRUCTURE OF SCHIST THOUGHT TO HAVE DETERMINED THE SITE OF ORE DEPOSITION. SCHEELITE MINERALIZATION THOUGHT TO HAVE TAKEN PLACE BEFORE THE FORMATION OF GOLD QUARTZ VEINS. MINERALIZATION THOUGHT TO BE INDUCED BY GRANITIC INTRUSIVE.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Fairbanks

Comments on development

  • ACTIVE PROSPECTING, 1916. SIX SCHEELITE LODES DISCOVERED ON 5 CLAIMS. NO PRODUCTION.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015294

Bibliographic references

  • Deposit

    USGS MF-410 (D-2), LOC. 27

  • Deposit

    USGS BULL. 662, P. 422-423

General comments

Subject category Comment text
Deposit AURIFEROUS QUARTZ-SCHEELITE VEINLETS ARE IN STRINGERS (2-6 IN. WIDE) OF DECOMPOSED QUARTZITE SCHIST THAT ALSO CARRIES SOME SCHEELITE AND GOLD. GOLD QUARTZ VEIN (STRIKE N 8 W, DIP 60 E) CUTS SCHEELITE LODE, WHICH IS 3 FT. THICK.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1987 Powers, M.T. (Huber, D.F.) U.S. Geological Survey