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  3. Mineral Resource Data System (MRDS)

Rip and Tear

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

Geologic information

Identification information

Deposit ID 10102836
MRDS ID M007344
Record type Site
Current site name Rip and Tear
Alternate or previous names Dodson
Related records 10236477

Geographic coordinates

Geographic coordinates: -120.97602, 38.57851 (WGS84)
Relative position 2 MI. N. OF LATROBE

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Latrobe(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Cosumnes(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008N 009E 03 California

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Pyrrhotite Ore

Analytical data

Result 10 % CU

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock

Nearby scientific data

(1) -120.97602, 38.57851
ListMap

Economic information

Ore body information

  • Width 1.52M

Controls for ore emplacement

  • Shear Zone

Economic information about the deposit and operations

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

Ownership information

  • Type Operator
    Owner F. H. Dodson

Comments on the production information

  • ORIGINALLY WORKED IN 1860'S. SHAFT REOPENED AND TWO CARLOADS OF ORE SHIPPED IN 1918. PROPERTY LEASED IN 1943 AND A SMALL AMOUNT OF ORE WAS SHIPPED. IDLE SINCE.

Comments on the workings information

  • A 100 FT. MAIN SHAFT AND DRIFTS; A 40-FT. SHAFT ON SAME PROPERTY ABOUT A MILE TO THE NORTH OF THE MAIN SHAFT.

Reference information

Bibliographic references

  • Deposit

    CLARK, W. B. AND CARLSON, D. W., 1956 : MINES AND MINERAL RESOURCES, EL DORADO COUNTY, CA.; CALIF. JOUR. MINES AND GEOLOGY, VOL. 52 , NO. 4 : DIV. OF MINES, P. 398 - 399 , 483 .

  • Deposit

    ERIC, J. H., 1948 ; COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 231 .

  • Production

    CLARK AND CARLSON, 1956 , P. 398

General comments

Subject category Comment text
Deposit BANDS AND STRINGERS OF MASSIVE PYRITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. U.S. Geological Survey
Updater 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.