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  3. Mineral Resource Data System (MRDS)

Last Chance

Occurrence in Josephine county in Oregon, United States with commodity Mercury
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10095493
MRDS ID M055892
Record type Site
Current site name Last Chance
Related records 10177125

Geographic coordinates

Geographic coordinates: -123.74116, 42.35093 (WGS84)

Site location context

Political divisions (FIPS codes)

Josephine(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Eight Dollar Mountain(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 037S 009W 15 Oregon

Comments on the location information

  • ON SOLDIER CREEK

Commodities

Commodity Importance
Mercury Primary

Comments on the commodity information

  • GRADE IS LOW

Materials information

Materials Type of material
Cinnabar Ore

Alteration

  • (Local) Serpentine Decomposed

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -123.74116, 42.35093
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Serpentine - Gneiss Contact

Controls for ore emplacement

  • Along Sheared Contact Between Serpentine And Diorite Gneiss

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1941
Discoverer J. A. Hance

Mining district

District name Briggs Creek

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Comments on the workings information

  • SEVERAL PROSPECT PITS, ALL CAVED

Reference information

Bibliographic references

  • Deposit

    BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P., P. 96

  • Deposit

    MERCURY IN OREGON, 1965, USBM IC 8252

  • Deposit

    RAMP, L. AND PETERSON, N. V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON: ODGMI BULL. 100, TABLE 1 NO. 245

General comments

Subject category Comment text
Deposit SHEAR ZONE IS SEVERAL FEET WIDE; ROCKS ARE SOFTENED HYDROTHERMALLY
Deposit RECORD NUMBER (M013475) HAS BEEN MERGED WITH THIS RECORD AND DELETED FROM THE OREGON FILE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-FEB-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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