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Unnamed Occurrence

Occurrence in Alaska, United States with commodity REE
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Geologic information

Identification information

Deposit ID 10001342
MRDS ID A012082
Record type Site
Current site name Unnamed Occurrence
Alternate or previous names Salmon River Junction

Geographic coordinates

Geographic coordinates: -134.45728, 58.06863 (WGS84)
Location accuracy 500(meters)
Relative position 3 MI W OF HEAD OF SEYMOUR CANAL
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • BEST LOCATION: USGS I-303, LOC. 26, 27 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
REE Primary

Nearby scientific data

(1) -134.45728, 58.06863
ListMap

Comments on the geologic information

  • PEGMATITE VEINS ARE IN 50 SQ MI METAMORPHIC TERRANE OF GRANITE, MIGMATITE AND VARIOUS CONTACT METAMORPHOSED ROCKS

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1957

Mining district

District name Admiralty

Land status

Ownership category National Forest

Comments on development

  • DISCOVERED IN THE COURSE OF USGS MAPPING OF GEOLOGY OF JUNEAU QUADRANGLE 1956-1958; 2 UNPATENTED LODE CLAIMS

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012082

Bibliographic references

  • Deposit

    USGS I-303, SAMPLES 26, 27

  • Deposit

    USGS PP 400-B, P. B38

  • Deposit

    USGS BULL 1246, P. 140-141

  • Deposit

    USGS OFR 85-717, P. 97

  • Other Database

    BAG-OFR-85-717-084

General comments

Subject category Comment text
Deposit X-RAY SPECTROSCOPIC ANALYSIS OF HEAVY MINERALS SAMPLES FROM PEGMATITE VEINS INDICATED PRESENCE OF YTTRIUM, ZIRCONIUM, NIOBIUM, THORIUM (?), LANTHANUM, CERIUM, PRASEODYMIUM AND NEODYMIUM
Deposit Discovery Year: LATE 1950'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-85 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey