Fall Creek Copper

Past Producer in Josephine county in Oregon, United States with commodities Copper, Gold, Silver, Zinc, Nickel

Geologic information

Identification information

Deposit ID 10042685
MRDS ID M060587
Record type Site
Current site name Fall Creek Copper
Alternate or previous names United Copper
Related records 10225288

Geographic coordinates

Geographic coordinates: -123.76866, 42.29538 (WGS84)
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Geographic areas

Country State County
United States Oregon Josephine

Public Land Survey System information

Meridian Township Range Section Fraction State
038S 009W 04 Oregon

Comments on the location information

  • MOSTLY WITHIN A WILD AND SCENIC RIVER CORRIDOR

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary
Zinc Tertiary
Nickel Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Pyrrhotite Ore

Alteration

  • (Local) Gossan, Trace Of Ni Found

Analytical data

Result HIGH GRADE SAMPLE ASSAYED 0.16 OZ/TON AU
Result 0.25 OZ/TON AG
Result 0.80 % ZN
Result 0.31 % NI
Result 23.0 % CU

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Serpentinite
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -123.76866, 42.29538

Ore body information

  • Strike N10-15W
    Dip 70E-70W
    Width 3.66M
    Length 182.88M

Comments on the geologic information

  • MASSIVE SULFIDES, MOSTLY CHALCOPYRITE AND PYRRHOTITE, OCCUR AS LENSES IN GREENSTONE AND SERPENTINE.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Reserves and resources

  • Type In-situ
    Estimate year 1973
    Total resources 65,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.8 wt-pct Copper Major 1973

Comments on the workings information

  • ABOUT 1000 FEET OF DEVELOPMENT WORK IN TWO TUNNELS.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M060587
U.S. Bureau of Mines Minerals Availability System MAS 0410330270

Bibliographic references

  • Deposit

    RAMP, L. AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON; ODGMI BULL. 100, 45P

  • Deposit

    CLOSE, T., AND RAMP, L., 1973, MINERAL RESOURCES OF THE ILLINOIS RIVER BASIN, OREGON; USBM UNPUBLISHED REPORT

  • Deposit

    OREGON METAL MINES HANDBOOK, 1942, ODGMI BULL. 14-C, VOL. 2, SEC. 1, P.148

General comments

Subject category Comment text
Deposit THREE MINERALIZED ZONES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1979 Johnson, Maureen G. 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