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Saddle Chrome

Past Producer in Josephine county in Oregon, United States with commodities Chromium, Platinum, Palladium, Rhodium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10098530
MRDS ID M061599
Record type Site
Current site name Saddle Chrome
Alternate or previous names Kerby #91
Related records 10249833

Geographic coordinates

Geographic coordinates: -123.80838, 42.29954 (WGS84)
Elevation 908

Site location context

Political divisions (FIPS codes)

Josephine(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pearsoll Peak(quadrangle 1:24,000 scale)

Grants Pass(quadrangle 1:100,000 scale)

Medford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Illinois(hydrologic unit)

Southern Oregon Coastal(hydrologic accounting unit)

Oregon-Washington Coastal(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Rogue River-Siskiyou National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Oregon Josephine

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 038S 009W 06 NW4 Oregon

Comments on the location information

  • LOCATION GIVEN IS FOR PGE SAMPLE SITE LOCATION. TOPO MAP DOES NOT SHOW ANY PROSPECTS IN IMMEDIATE VICINITY. LOCATION IS ON TOP OF RIDGE BETWEEN DAILEY AND WEST FORK RANCHERIE CREEKS

Commodities

Commodity Importance
Chromium Critical Primary
Platinum Critical Tertiary
Palladium Critical Tertiary
Rhodium Critical Tertiary

Comments on the commodity information

  • CHROMITE IS MEDIUM GRAINED

Materials information

Materials Type of material
Chromite Ore
Talc Gangue

Analytical data

Result 2 PGE ANALYSES: PT=N(10), 100 PPB
Result PD=4, 20 PPB
Result RH=N(4), 40 PPB
Result IR, RU NOT ANALYZED. FLOAT SAMPLE ASSAYED 30.06% CR2O3, 9.83% FE.

Mineral occurrence model information

Model code 15
USGS model code 8a
Deposit model name Podiform chromite (minor)
Mark3 model number none

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
    Rock unit name Pearsoll Peak Ophiolite
    Rock description Pearsoll Peak Ophiolite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Pearsoll Peak Ophiolite
    Rock description Pearsoll Peak Ophiolite

Nearby scientific data

(1) -123.80838, 42.29954
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Rock Is Highly Sheared Adjacent To Ore

Ore body information

  • General form LENSES, ANGULAR MASSES
    Strike N-N20E
    Dip 35E-90
    Thickness 1.37M
    Length 3.66M
    Width 1.37M

Controls for ore emplacement

  • Magmatic Segregation

Economic information about the deposit and operations

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

Mining district

District name Pearsoll Peak Area

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Ownership information

  • Type Operator
    Owner W. W. Lyons
    First year 1957
  • Type Owner
    Owner Mrs. R. E. Mccaleb
    First year 1961

Production statistics

  • Year 1957
    Period 1956-1957
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^49% Cr2o3, 15% Fe
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Iron Iron 15wt-pct
    Cr2O3 Ore Chromium Chromium 49wt-pct

Comments on the production information

  • 240 TONS OF MILLING ORE CONCENTRATED TO 100 TONS

Workings at the site

  • Type of workings Surface/Underground
    Length 6.1M
    Overall length 30.48M
    Overall width 9.14M

Comments on the workings information

  • SMALL CUTS AND TWO SHORT DRIFTS. DIMENSIONS ARE FOR LARGEST OPEN CUT AND FOR THE DRIFT THAT WAS STILL ACCESSIBLE AT TIME OF VISIT

Reference information

Bibliographic references

  • Deposit

    RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 52, P. 44.

  • Deposit

    CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM-GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.

General comments

Subject category Comment text
Deposit DIMENSIONS ARE OF LARGEST LENS. THE ORE ZONE IS ABOUT 150 FT LONG WITH THE ORE IN 7-8 LENSES AND MASSES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1995 Unknown U.S. Geological Survey
Updater 01-APR-1981 Ferns, Mark L. (Brooks, Howard C.) Oregon Department of Geology and Mineral Industries
Updater 01-MAR-1990 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site