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Last Chance Group

Occurrence in Grant county in Oregon, United States with commodities Gold, Silver, Zinc, Copper, Cobalt, Nickel
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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. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10033073
MRDS ID M014977
Record type Site
Current site name Last Chance Group
Alternate or previous names Jensen Group
Related records 10176822

Geographic coordinates

Geographic coordinates: -118.70078, 44.59402 (WGS84)

Site location context

Political divisions (FIPS codes)

Grant(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dixie Meadows(quadrangle 1:24,000 scale)

Bates(quadrangle 1:100,000 scale)

Canyon City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Fork John Day(hydrologic unit)

John Day(hydrologic accounting unit)

Middle Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Malheur National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Oregon Grant

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 011S 033E 23 SE Oregon

Comments on the location information

  • SE 1/4; FIVE CLAIMS

Commodities

Commodity Importance
Gold Primary
Silver Primary
Zinc Critical Primary
Copper Primary
Cobalt Critical Primary
Nickel Critical Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Dolomite Gangue
Quartz Gangue

Analytical data

Result LOW GRADE ORE
Result LITTLE FREE GOLD. ASSAY RESULTS FROM 1969 DRILL PROGRAM INDICATE THAT THE DEPOSIT IS LOW GRADE. HIGHEST REPORTED VALUES ARE 0.02OZ/TON AU
Result 0.35OZ/TON AG
Result 0.20% NI
Result AND 0.10% CO (ODGMI FILES).

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -118.70078, 44.59402
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Shear Zone

Ore body information

  • Strike N 60 E
    Dip 60 SE

Comments on the geologic information

  • MINERALIZATION IS IRREGULAR AND GENERALLY WEAK IN EXPOSED PORTIONS OF THE SHEAR ZONE. ; GEOL.DESC: SMALL VEINLETS AND STRINGERS AS MUCH AS 1 1/2 FT WIDE OCCUR.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Quartzburg

Land status

Ownership category
Area name Malheur Natioal Forest

Comments on the workings information

  • 400 FT. OF WORKINGS

Reference information

Bibliographic references

  • Deposit

    OREGON METAL MINES HANDBOOK, 1941 , ODGMI BULL. 14 - B, P. 120

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Lee, W. U.S. Geological Survey
Updater 01-MAY-1980 Bradley, Robin (Walker, George W.) 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.

Maps centered on this site