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Curve Creek Deposit

Occurrence in Alaska, United States with commodities Beryllium, Fluorine-Fluorite, Uranium, Antimony
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Geologic information

Identification information

Deposit ID 10094091
MRDS ID A016004
Record type Site
Current site name Curve Creek Deposit

Geographic coordinates

Geographic coordinates: -167.22757, 65.44926 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS BULLETIN 1287, PLATE 1; AREA OF BE-F MINERALIZATION ALONG DIKE IMMEDIATELY W OF UPPER CURVE CR. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Beryllium Primary
Fluorine-Fluorite Secondary
Uranium Secondary
Antimony Tertiary

Materials information

Materials Type of material
Hematite Ore
Stibnite Ore
Fluorite Gangue
Pyrite Unknown

Analytical data

Result MAX. BEO CONTENT: 0.15%
Result HIGHEST RADIOACTIVITY: 0.0006% EU.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Ordovician
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -167.22757, 65.44926
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Geologic structures

Type of structure Regional
Structure description Rapid River Thrust Fault

Ore body information

  • Length 1219.2M

Controls for ore emplacement

  • Fracture Control(?), Fault Control

Comments on the geologic information

  • SEVERAL DIKES OF RHYOLITE AND/OR POSSIBLY OTHER TYPES; TREND: N 80-85 DEGREES E; EMPLACED ALONG RAPID RIVER THRUST.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both metallic and non-metallic
Deposit size Small
Significant No
Discovery year 1964
Discoverer C.L. Sainsbury

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A016004

Bibliographic references

  • Deposit

    USGS OFR 51, P. 25.

  • Deposit

    USGS BULLETIN 1287, P. 77-78.

  • Deposit

    USGS OFR 77-796-B, P. 5, LOC. 28.

  • Other Database

    BAG-MF-426-04

General comments

Subject category Comment text
Deposit BE-BEARING REPLACEMENT BODIES IN LIMESTONE OVERRIDDEN BY RAPID RIVER THRUST FAULT CONSIST MAINLY OF SILICA, FLUORITE, PYRITE, AND LOCALLY STIBNITE(?) AND DIASPORE; ORE DISCONTINOUS ALONG FAULT FOR 4000 FT, RICHER WHERE LIMETONE HAS BEEN INTRUDED BY DIKES EMPLOCED ALONG THE THRUST; SAMPLE OF RHYOLITE DIKE CONTAINED U-BEARING FLUORITE, PYRITE AND HEMATITE.
Deposit POSSIBLE EXTENSION OF BESSIE-MAPLE MINERALIZED ZONE ; INFO.SRC : 1 PUB LIT
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1987 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey