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Cavagnaro Prospect

Occurrence in Napa county in California, United States with commodity Manganese
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10031657
MRDS ID M010792
Record type Site
Current site name Cavagnaro Prospect

Geographic coordinates

Geographic coordinates: -122.5169, 38.65682 (WGS84)
Elevation 671
Relative position 0.5 MI. W. OF AETNA QUICKSILVER MINE

Site location context

Political divisions (FIPS codes)

Napa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Detert Reservoir(quadrangle 1:24,000 scale)

Healdsburg(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States California Napa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 009N 006W 03 California

Commodities

Commodity Importance
Manganese Critical Tertiary

Nearby scientific data

(1) -122.5169, 38.65682
ListMap

Economic information

Ore body information

  • Thickness 1.83M
    Length 30.48M

Comments on the geologic information

  • GEOL.DESC: ORE BODY IS SURROUNDED BY SERPENTINE, AND CUT OFF BY GREENSTONE ON THE S.W. SERPENTINE HAS ALTERED TO QUICKSILVER NEAR THE PROSPECT, WITH TRACES OF CINNABAR. ORE BODY IS MASSIVE, BRITTLE BROWN MATERIAL WITH MANGANESE FILMS ON FISSURE WALLS AND SMALL SPHERULES. BROWN ORE IS MAINLY IRON OXIDE, WITH A SMALL AMOUNT OF MANGANESE OXIDE AND OPAL.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Cavagnaro, Charles

Comments on the production information

  • NO PRODUCTION.

Reference information

Bibliographic references

  • Deposit

    CALIF. BULL. 125, 1943, P. 145

  • Deposit

    BULL. 76, 1918, P. 51; BULL. 152, 1950, PP. 157-8

  • Deposit

    REPT. 25, 1929, P. 219

General comments

Subject category Comment text
Deposit QUANTITATIVE DETERMINATIONS OF THE AMOUNT OF MANGANESE OXIDE HAVE NOT YET BEEN MADE, BUT IT IS DOUBTFUL THAT THIS DEPOSIT WOULD BE VALUABLE AS A SOURCE OF MANGANESE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-DEC-1977 Killman, K.; 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.