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Nickel Mountain Group

Producer in Douglas county in Oregon, United States with commodities Nickel, Chromium, Rhodium, PGE
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Geologic information

Identification information

Deposit ID 10043117
MRDS ID M061616
Record type Site
Current site name Nickel Mountain Group
Alternate or previous names Upper Occurrence
Related records 10067833, 10128671

Geographic coordinates

Geographic coordinates: -123.44005, 42.96093 (WGS84)
Elevation 988
Relative position ON HANNA NICKEL PROPERTY
(click for info)

Geographic areas

Country State County
United States Oregon Douglas

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 030S 006W 17 Oregon

Comments on the location information

  • NEARBY LOWER ORE BODY IS IN SEC. 20, LAT 42-57-11N, LONG 123-26-07W. UTM: NORTHING 4755492.2, EASTING 464495.2, ZONE +10, ALTITUDE 2,550 FT ON SOUTH SIDE OF NICKEL MOUNTAIN.

Commodities

Commodity Importance
Nickel Primary
Chromium Tertiary
Rhodium Tertiary
PGE Tertiary

Materials information

Materials Type of material
Quartz Gangue

Analytical data

Result MASSIVE FLOAT AT LOWER ORE BODY HAS 54.60% CR2O3, 10.08% FE
Result SIMILAR ORE 51.60% CR2O3, 10.75% FE IN CHROME-RICH ZONES. RH=25 PPB

Mineral occurrence model information

Model code 110
USGS model code 38a
BC deposit profile B02
Deposit model name Lateritic Ni

Host and associated rocks

  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Riddle Mountain Peridotite;Dothan Formation;Riddle Formation;Riddle Formation;Riddle Formation
    Rock description Riddle Mountain Peridotite;Dothan Formation;Riddle Formation;Riddle Formation;Riddle Formation

Nearby scientific data

(1) -123.44005, 42.96093
ListMap

Geologic structures

Type Description Terms
Regional Tertiary Klamath Peneplain (Upper Body), Sherwood Peneplain (Lower Body)
Local Klamath Peneplain, Rock Fault And Associated Faults, Fractures And Joints.

Ore body information

  • General form IRREGULAR
    Strike N20E
    Dip 55SE
    Thickness 21.34M
    Depth to bottom 60.96M
    Width 1.22M
    Length 3.66M
  • General form IRREGULAR
    Dip 55SE
    Thickness 21.34M
    Depth to bottom 22.86M

Controls for ore emplacement

  • Subparallel Diagonal Cross Faults At Right Angles To The Main Rock Fault.

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1864
Discoverer Sheepherders
Year of first production 1954

Mining district

District name Riddle District

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Hanna Mining Co.
    First year 1978

Production statistics

  • Year 1918
    Period 1916-1918
    Material ORE CR
    Accuracy Estimate
    Description Cp_Grade: ^High Grade (1917=55% Cr203) (Lower Ore Body)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 55wt-pct
  • Year 1958
    Period 1952-1958
    Material ORE CR
    Accuracy Estimate
    Description Cp_Grade: ^42-48% Cr203 (Lower Ore Body)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 46wt-pct
  • Year 1958
    Period 1916-1958
    Material ORE CR
    Accuracy Estimate
    Description Cp_Grade: ^50.23% Cr203 (Weighted Average Grade) (Lower Ore Body)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 50wt-pct
  • Year 1960
    Period 1954-1960
    Material ORE NI
    Accuracy Estimate
    Description Cp_Grade: ^1.5% Ni Both Ore Bodies
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Nickel Nickel 2wt-pct

Comments on the production information

  • LARGE NICKEL PRODUCTION, SMALL CHROME PRODUCTION

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M061616
U.S. Bureau of Mines Minerals Availability System MAS 0410190356

Bibliographic references

  • Deposit

    RAMP, LEN, 1972, GEOLOGY AND MINERAL RESOURCES OF DOUGLAS COUNTY, OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 75, P. 59-66.

  • Deposit

    RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 52, P. 120

  • Deposit

    PAGE, N.J, JOHNSON, M.G., HAFFTY, JOSEPH, AND RAMP, LEN, 1975, OCCURRENCE OF PLATINUM GROUP METALS IN ULTRAMAFIC ROCKS OF THE MEDFORD-COOS BAY 2 DEGREE QUADRANGLE, SOUTHWESTERN OREGON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-694, SCALE 1:250,000.

  • Deposit

    RAMP, LEN, 1978, INVESTIGATIONS OF NICKEL IN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES MISCELLANEOUS PAPER NO. 20, P. 9-15.

  • Deposit

    CUMBERLIDGE, J.T., AND CHASE, F.M., 1968, GEOLOGY OF THE NICKEL MOUNTAIN MINE, RIDDLE, OREGON, IN RIDGE, J.D., ED., ORE DEPOSITS IN THE UNITED STATES, 1933/1967, GRATON-SALES VOLUME: NEW YORK, AMERICAN INSTITUTE OF MINING, METALLURGICAL, AND PETROLEUM ENGINEERS, P. 1650-1672.

General comments

Subject category Comment text
Deposit DIMENSIONS OF DEPOSIT ARE UPPER ORE BODY / LOWER ORE BODY. BOTH ORE BODIES REPRESENT ERODED REMNANT OF NICKEL-BEARING LATERITE-SAPROLITE DEPOSIT THAT FORMED OVER ULTRAMAFIC ROCKS. LATERITE CAPPING HAS BEEN ERODED. LENSES OF CHROMITE FOUND WITHIN THE ORE BODIES ARE AS FOLLOWS: UPPER BODY; 12 FT X 4 FT, STRIKE N 20 E DIP 55 SE. LOWER BODY; SMALL DEPOSIT OF UNSTATED DIMENSION.
Deposit SEE ALSO: MRDS W000690.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1976 Johnson, Maureen G. U.S. Geological Survey
Updater 01-MAR-1981 Ferns, Mark L. (Brooks, Howard C.) Oregon Department of Geology and Mineral Industries
Updater 01-MAY-1989 Peterson, Jocelyn A. U.S. Geological Survey