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Sour Dough

Producer in Curry county in Oregon, United States with commodity Chromium
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Land status
  14. Production statistics
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10042735
MRDS ID M060684
Record type Site
Current site name Sour Dough
Alternate or previous names Baldface
Related records 10176978

Geographic coordinates

Geographic coordinates: -123.95033, 42.04065 (WGS84)
Elevation 457

Site location context

Political divisions (FIPS codes)

Curry(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Biscuit Hill(quadrangle 1:24,000 scale)

Grants Pass(quadrangle 1:100,000 scale)

Medford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Smith(hydrologic unit)

Northern California Coastal(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(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 Curry

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 040S 011W 36 Oregon

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -123.95033, 42.04065
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description East Limb Of Northwest - Plunging Anticline; Faults And Shear Zones

Ore body information

  • General form LENS, LAYER
    Strike NORTHWEST
    Dip 45 NE
    Length 731.52M
    Width 3.66M
    Depth to bottom 294.13M

Comments on the geologic information

  • DISSEMINATED AND BANDED CHROMITE OCCUR IN A NARROW DUNITE ZONE IN HARZBURGITE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Production statistics

  • Year 1918
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^40. % Cr2o3 - 42. % Cr2o3, Prob. From 625 T. Mined
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 40wt-pct
  • Year 1918
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^50. % Cr2o3, From 500 T. Mined.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 50wt-pct
  • Year 1941
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^45. % Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 45wt-pct
  • Year 1942
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^42. % Cr2o3 - 47. % Cr2o3, 2.8 Cr - 2.9 Cr, Fe
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 42wt-pct
  • Year 1944
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^38. % Cr2o3 - 46. % Cr2o3, 2.6 Cr - 3.0 Cr, Fe
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 42wt-pct
  • Year 1958
    Period 1918-1958
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^44% Cr2o3 To 52% Cr2o3 Conc. And Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 48wt-pct

Comments on the production information

  • RAMP SAYS .312 TONS OF 50% CR2O3 W/2.7 CR:FE & .100 TONS OF 48% CR2O3 W/3.0 CR:FE (LUMP ORE)

Reserves and resources

  • Type In-situ
    Estimate year 1940
    Total resources 22000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 35 wt-pct Chromium Major 1940

Reference information

Bibliographic references

  • Deposit

    RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPT. GEOLOGY AND MINERAL IND. BULL. 52, 169 P.

  • Deposit

    THAYER, T. P., 1974, UNPUBL. DATA

  • Deposit

    RAMP, L. AND OTHERS, 1977, GEOLOGY, MINERAL RESOURCES AND ROCK MATERIAL OF CURRY COUNTY, OREGON; ODGMI BULL. 93, P.31

  • Deposit

    WELLS, F.G. AND OTHERS, 1940, CHROMITE DEPOSITS IN THE SOURDOUGH AREA, CURRY COUNTY AND THE BRIGGS CREEK AREA, JOSEPHINE COUNTY, OREGON; USGS BULL. 922-P, P.475

  • Production

    THAYER FILES & RAMP

General comments

Subject category Comment text
Deposit CONTINUITY DISRUPTED BY SHEARING, FAULTING
Deposit RECORD NUMBERS (M013198) AND (W017046) HAVE BEEN MERGED WITH THIS RECORD AND DELETED FROM THE OREGON FILE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1992 Unknown 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

Beyond USGS

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

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