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Lower Larson

Occurrence in Curry county in Oregon, United States with commodities Nickel, Chromium, Cobalt, Iron
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Geologic information

Identification information

Deposit ID 10033279
MRDS ID M015583
Record type Site
Current site name Lower Larson
Related records 10128785

Geographic coordinates

Geographic coordinates: -124.09506, 42.4537 (WGS84)
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Geographic areas

Country State County
United States Oregon Curry

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 036S 012W 10 Oregon

Commodities

Commodity Importance
Nickel Primary
Chromium Primary
Cobalt Primary
Iron Primary

Materials information

Materials Type of material
Soil Ore

Alteration

  • (Local) Serpentization

Analytical data

Result ASSAYS IN REFERENCE

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase

Nearby scientific data

(1) -124.09506, 42.4537
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Geologic structures

Type of structure Local
Structure description Thrust Fault

Ore body information

  • Thickness 6.1M
    Width 182.88M
    Length 762M

Comments on the geologic information

  • ULTRAMAFICS (HARZBURCITE) IN FAULT CONTACT WITH LATE JURASSIC DOTHAN FORMATION AND EARLY CRETACEOUS MYRTLE GROUP SEDIMENTS

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M015583
U.S. Bureau of Mines Minerals Availability System MAS 0410150274

Bibliographic references

  • Deposit

    RAMP, LEN, 1978 , INVESTIGATIONS OF NICKEL IN OREGON: ODGMI MISC. PAPER NO. 20 , P. 50 - 51

  • Deposit

    RAMP, L. AND OTHERS, 1977, GEOLOGY, MINERAL RESOURCES AND ROCK MATERIAL OF CURRY COUNTY, OREGON; ODGMI BULL. 93, P.49

General comments

Subject category Comment text
Deposit AMOUNT OF UNWEATHERED ROCK IN SOIL AVERAGES 35 % BY VOLUME

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Bradley, Robin (Walker, George W.) U.S. Geological Survey
Updater 01-APR-1981 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries