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Blackhawk

Past Producer in Kern county in California, United States with commodities Zinc, Lead, Copper, Silver
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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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Production statistics
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10103005
MRDS ID M020874
Record type Site
Current site name Blackhawk
Related records 10260952

Geographic coordinates

Geographic coordinates: -118.46148, 35.26305 (WGS84)
Elevation 914
Relative position AT HEAD OF STUDHORSE CANYON

Site location context

Political divisions (FIPS codes)

Kern(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Loraine(quadrangle 1:24,000 scale)

Tehachapi(quadrangle 1:100,000 scale)

Bakersfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Kern-Upper Tehachapi-Grapevine(hydrologic unit)

Tulare-Buena Vista Lakes(hydrologic accounting unit)

Tulare-Buena Vista Lakes(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Kern

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 031S 033E 05 California

Comments on the location information

  • SW 1/4 SEC. 5 , UTM EST.

Commodities

Commodity Importance
Zinc Critical Primary
Lead Secondary
Copper Secondary
Silver Secondary

Materials information

Materials Type of material
Aurichalcite Ore
Chalcopyrite Ore
Galena Ore
Hemimorphite Ore
Malachite Ore
Sphalerite Ore
Zincite Ore
Calcite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -118.46148, 35.26305
ListMap

Economic information

Ore body information

  • General form IRREGULAR
    Strike N 45 E
    Dip STEEPLY NW

Comments on the geologic information

  • GEOL.DESC: THE METAMORPHIC ROOF PENDANT STRIKES N 30 E IS SEVERAL MILES LONG AND AVG. 1 MILE IN WIDTH. SOUTH END OF MINE IS A RHYOLITE PORPHYRY DIKE, A FEW TENS OF FEET WIDE, WHICH HAS INTRUDED THE METASEDIMENTARY ROCKS ALONG A ZONE PARALLEL TO AND SEVERAL FEET SE OF NW EDGE OF PENDANT.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1944 - 1945 , 1951

Mining district

District name Loraine

Production statistics

  • Year 1958
    Period - 1958
    Material PB
    Accuracy Accurate
    Description Cp_Grade: ^From Less Than 300 Tons Of Ore: Ore Averaged 7 1/2% Zn, 4% Pb, 0.5% Cu, And 1 Oz Ag/Ton.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Zinc Zinc 8wt-pct
    Lead Lead 4wt-pct
    Major Copper Copper 1wt-pct
    Minor Silver Silver 28g/mt
  • Year 1958
    Period - 1958
    Material ZN
    Accuracy Accurate
    Description Cp_Grade: ^From Less Than 300 Tons Of Ore: Ore Averaged 7 1/2% Zn, 4% Pb, 0.5% Cu, And 1 Oz Ag/Ton.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Lead Lead 4wt-pct
    Zinc Zinc 8wt-pct
    Minor Silver Silver 28g/mt
    Major Copper Copper 1wt-pct

Comments on the workings information

  • 400 - 500 FT. OF HORIZONTAL WORKINGS ACCESSIBLE BY THREE ADITS SOME ORE MAY HAVE BEEN MINED FROM A VERTICAL SHAFT OF UNDETERMINED DEPTH AT PORTAL OF ONE OF THE ADITS

Reference information

Bibliographic references

  • Deposit

    GOODWIN, J.G., 1957 , LEAD AND ZINC IN CALIFORNIA; CA JOUR. MINES AND GEOLOGY, VOL. 53 , NOS. 3 & 4 ; DIV. OF MINES, P 526

  • Deposit

    TROXEL, B.W. AND MORTON, P.K., 1962 ; MINES AND MINERALS OF KERN COUNTY, CA; COUNTY REPT. 1 ; CA. DIV. OF MINES AND GEOLOGY, P. 345-346

  • Production

    TROXEL, AND MORTON, 1962 , P. 345

General comments

Subject category Comment text
Deposit IRREGULAR REPLACEMENT OF LIMESTONE NEAR CONTACT BETWEEN METAMORPHIC ROOF PENDANT AND QUARTZ DIORITE. THIS ZONE IS BOUNDED ON THE SE BY A FINE-GRAINED PHASE OF THE RHYOLITE DIKE 1 - 2 FT. WIDE AND ON THE NW BY A PALE TACTITE BODY OF UNDETERMINED THICKNESS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-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.