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Mcdonald

Occurrence in Sonoma 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. Economic information about the deposit and operations
  9. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10077844
MRDS ID W025872
Record type Site
Current site name Mcdonald
Related records 10287769

Geographic coordinates

Geographic coordinates: -122.75246, 38.72655 (WGS84)
Elevation 646
Relative position ON THE SIDE OF THE ROAD FROM HEALDSBURG TO PINE FLAT

Site location context

Political divisions (FIPS codes)

Sonoma(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Jimtown(quadrangle 1:24,000 scale)

Healdsburg(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Russian(hydrologic unit)

Northern California Coastal(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Sonoma

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 010N 008W 09 California

Comments on the location information

  • LOCATED IN SW 1/4 SECTION 9 ; INFO FROM LAND.ST :UNDETERMINED

Commodities

Commodity Importance
Manganese Critical Tertiary

Nearby scientific data

(1) -122.75246, 38.72655
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: SEVERAL LENSES OF MASSIVE CHERT AT DIFFERENT HORIZONS IN THIN-BEDDED CHERTS. LENSES ARE WHITE TO RED COLORED, MOSTLY SILICA, 3 TO 4 FT. THICK, AND UP TO 15 FT. LONG. CHERT CONTAINS SMALL MANGANESE CARBONATE SPHERULES, AND LOCALLY ARE PATCHES AND STREAKS OF SILICEOUS CARBONATE ORE. HIGH GRADE OXIDE ORE OCCURS ALONG FRACTURES.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 152 1950 P. 284

  • Deposit

    D.O.M. BULL. 125 1943 P. 187

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1978 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.