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Silver Lead

Past Producer in Mariposa county in California, United States with commodities Gold, Copper, Lead, Zinc, 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. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10030917
MRDS ID M009406
Record type Site
Current site name Silver Lead
Alternate or previous names St. Gabriel and Honeycomb, Silver Lead & Margavetta
Related records 10163387

Geographic coordinates

Geographic coordinates: -120.21377, 37.55936 (WGS84)
Elevation 366
Relative position 4.5 MI N & SLIGHTLY E HORNITOS

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hornitos(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fresno River(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004S 016E 28 California

Commodities

Commodity Importance
Gold Primary
Copper Secondary
Lead Secondary
Zinc Critical Secondary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Hornfels
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -120.21377, 37.55936
ListMap

Economic information

Ore body information

  • Strike N 30 W
    Dip 40 - 45 NE
    Thickness 1.22M
    Length 914.4M
    Depth to top 0M

Comments on the geologic information

  • WALL ROCKS CHIEFLY DENSE, MASSIVE BLUE - BLACK QUARTZ - BIOTITE HORNFELS & MASSIVE SPOTTED SLATE. CUT AT DEPTH BY GREEN METAVOLCANIC DIKES & DARK, QUARTZ - RICH GRANODIORITE PORPHYRY DIKES NEITHER OF WHICH OUTCROP CONSPICUOUSLY.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1865

Mining district

District name Hornitos

Ownership information

  • Type Operator
    Owner E. G. Branson Et Al.

Comments on the production information

  • NO PRODUCTION RECORD FOUND ORE MILLED DURING LATER PERIOD OF MINING YIELDED $4 - $7/TON OPERATED AT INTERVALS UP TO 1914; 1919-22; 1935-47. OPERATED AT INTERVALS UP TO 1914; 1919-22; 1935-47.

Workings at the site

  • Type of workings Underground
    Length 228.6M
    Overall depth 76.2M

Comments on the workings information

  • INCLINE W/2 OR 3 LEVELS. SEVERAL SHORT TUNNELS, SHALLOW SHAFTS & PITS.

Reference information

Bibliographic references

  • Deposit

    BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , P. 169 - 170 , 305

  • Deposit

    LAIZURE, C. MCK., 1928 , SAN FRANCISCO FIELD DIVISION, IN TWENTY-FOURTH REPORT OF THE STATE MINERALOGIST: CALIFORNIA STATE MINING BUREAU, P. 116 - 117

General comments

Subject category Comment text
Deposit VEIN, ZONE OF STRINGERS 2 - 4 FT THICK
Deposit 2 PATENTED CLAIMS. SILVER LEAD AND MARGARETTA, TOTAL OF 39.84 ACRES. PROPERTY ORIGINALLY INCLUDED ST. GABRIEL AND HONEYCOMB CLAIMS, BUT THESE MAY HAVE BEEN RENAMED. ; INFO.SRC : 1 PUB LIT
Deposit Discovery Year: 1860'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1979 Bowman, J. And Albers, J. 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

Authoritative California resources

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