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Rainbow

Past Producer in Baker county in Oregon, United States with commodities Gold, Silver, Arsenic, Lead, Zinc
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10069096
MRDS ID W002486
Record type Site
Current site name Rainbow

Geographic coordinates

Geographic coordinates: -117.56241, 44.42597 (WGS84)
Elevation 1524
Relative position 27.5 MILES S28 DEG E OF BAKER, OREGON

Site location context

Political divisions (FIPS codes)

Baker(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mormon Basin(quadrangle 1:24,000 scale)

Brogan(quadrangle 1:100,000 scale)

Baker City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Burnt(hydrologic unit)

Middle Snake-Powder(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management OR)

Bureau of Land Management OR BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Oregon Baker

Public Land Survey System information

Meridian Township Range Section Fraction State
013S 042E 22 Oregon

Commodities

Commodity Importance
Gold Primary
Silver Primary
Arsenic Critical Primary
Lead Primary
Zinc Critical Primary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Pyrite Ore
Sphalerite Ore
Tetrahedrite Ore
Ankerite Gangue
Quartz Gangue

Alteration

  • (Local) Actinolite, Chlorite

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Burnt River Schist;Burnt River Schist;Burnt River Schist;Burnt River Schist;Burnt River Schist;;
    Rock description Burnt River Schist;Burnt River Schist;Burnt River Schist;Burnt River Schist;Burnt River Schist;;

Nearby scientific data

(1) -117.56241, 44.42597
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ne Alinement Of Granite Intrusives
Type of structure Local
Structure description Ne And Nw Trending Faults

Ore body information

  • General form LENS
    Strike N 60 DEG E
    Dip 60 DEG NW
    Length 457.2M

Controls for ore emplacement

  • Breccia Zones Between Altered Hornblende Porphyry Dike And Country Rock Consisting Of Various Facies Of Igneous Rocks, Schist, And Altered Ultramafic Rocks.

Comments on the geologic information

  • DIKE IS HIGHLY ALTERED, INTRUDES BRECCIA. LIMESTONE AND GREENSTONE FORM FOOTWALL, ARGILLITE AND GRANITIC ROCKS FORM HANGING WALL.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1901
Year of first production 1901

Mining district

District name Mormon Basin

Ownership information

  • Type Operator
    Owner Condor Gold Mines

Comments on the production information

  • ITEM 8 ESTIMATED FROM RECORDED PRODUCTION OF $2,323,092.46, 1901-1919 AND 1,222 TOZ. IN 1934

Workings at the site

  • Type of workings Underground
    Length 2133.6M
    Overall depth 152.4M

Comments on the workings information

  • ORE SHOOTS ARE UP TO 350 FT LONG, OCCUPY VEINS AT FOOTWALL AND HANGING WALL CONTACTS OF A FAULT BRECCIA 50 FT WIDE. 0.48 TOZ AU/T AVERAGE GRADE ESTIMATED FROM RECORDED PRODUCTION OF $2,323,092.46, 1901-1919 AND 1,222 TOZ. IN 1934

Reference information

Bibliographic references

  • Deposit

    SWARTLY, A.M., 1914, ORE DEPOSITS OF NORTHEASTERN OREGON BUREAU OF MINES AND GEOLOGY, MINERAL RESOURCES OF OREGON 1(8): 306 P.

  • Deposit

    GILLULLY, J., ETAL, 1933, SOME MINING DISTRICTS OF EASTERN OREGON: USGS BULL. 846-A, P. 1-40.

  • Deposit

    OREGON DEPARTMENT OF GEOLOGY ABD MINERAL INDUSTRIES, 1939, OREGON METAL MINES HANDBOOK; NORTHEASTERN OREGON, EAST HALF: BULLETIN 14-A, 125 P.

  • Deposit

    BROOKS, H.C., AND RAMP, L., 1968, GOLD AND SILVER IN OREGON: O.D.G.M.I. BULL. 61

  • Deposit

    & 5) WOLFF, E. N., 1965 , THE GEOLOGY OF THE NORTHERN HALF OF THE CAVINESS QUADRANGLE, UNIV. OREGON PHD OR

  • Deposit

    1914 RECON ORE. BU. MINES AND GEOL.: REF. 1

  • Deposit

    1929 RECON J. GILLULLY ETAL: BULL. 846-A

  • Deposit

    1939 RECON ORE. DEPT. GEOL. MIN. IND.: REF. 3

  • Deposit

    1968 COMPILE ORE. DEPT. GEOL. MIN. IND.: REF. 4

  • Production

    BROOKS, H. C., AND RAMP, L., 1968, GOLD AND SILVER IN OREGON, P. 129

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Reeves, James R. U.S. Geological Survey
Updater 01-SEP-1979 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries
Updater 01-MAY-1995 Li, Zhiping (Peters, S.) U.S. Geological Survey

Beyond USGS

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

External references

Maps centered on this site