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Horn

Past Producer in San Bernardino county in California, United States with commodities Copper, Gold
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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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10102989
MRDS ID M020742
Record type Site
Current site name Horn
Related records 10286302

Geographic coordinates

Geographic coordinates: -114.79303, 34.2081 (WGS84)
Relative position 13 AIRLINE MILES WEST OF VIDAL JUNCTION

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Horn Spring(quadrangle 1:24,000 scale)

Parker(quadrangle 1:100,000 scale)

Needles(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Imperial Reservoir(hydrologic unit)

Lower Colorado(hydrologic accounting unit)

Lower Colorado(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 002N;001N 021E;021E 32;05 California

Commodities

Commodity Importance
Copper Primary
Gold Secondary

Comments on the commodity information

  • HIGH GRADE COPPER ORE

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Cuprite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -114.79303, 34.2081
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault Zones

Ore body information

  • Strike N 55 W
    Dip VERTICAL
    Thickness 8.23M

Controls for ore emplacement

  • Fractures, Fault Zones

Comments on the geologic information

  • GEOL.DESC: ROCKS IN AREA ARE ARCHEAN METAMORPHICS ONE DEPOSIT IS ASSOCIATED WITH A QUARTZ-SPINEL ROCK WHICH GRADES INTO A QUARTZ - SPINEL - SERICITE. SCHIST. NORTHERN AREA, BASALT LOCALLY OVERLIES THE METAMORPHIC ROCKS.

Economic information about the deposit and operations

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

Production statistics

  • Year 1952
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^4.84 - 6.71 % Cu, Small Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Copper Copper 6wt-pct

Comments on the workings information

  • VEIN TO NE; EXPLORED BY SURFACE CUTS AND TWO SHORT ADITS 150 FT. APART, 70 FT. DIFFERENCE IN ELEVATION. LOWER ADIT 90 FT. LONG, UPPER ADIT DRIVEN S 70 W FOR 50 FT. VEIN TO SW; EXPLORED BY DRIFT ADIT 50 FT. LONG. PREVIOUS WORKINGS TOTALED 750 FT.

Reference information

Bibliographic references

  • Deposit

    AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA, BULL. 50 ; CALIF. MIN. BUR., P. 337.

  • Deposit

    WRIGHT, L. A., ETAL, 1953 , MINES AND MINERAL DEPOSITS, SAN BERNARDINO COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 49 , NOS. 1 & 2 ; DIV. OF MINES, P. 64 .

  • Production

    WRIGHT, L. A., ETAL, 1953 , P. 64 (SEE REF.)

General comments

Subject category Comment text
Deposit ORE MINERALS FORM SMALL REPLACEMENT BODIES ALONG FAULT ZONES IN METAMORPHIC ROCKS. TWO PARALLEL VEINS, 200 FT. APART CROP OUT ON SE SLOPE OF A NE TRENDING RIDGE. ORE BODY 2 - 27 FT. THICK, THICKEST AT INTERSECTION OF VEIN WITH CROSS FRACTURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1978 Fraticelli, L. A. (Albers, J.) 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

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.