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Cottonwood

Producer in Santa Clara 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. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10077450
MRDS ID W025093
Record type Site
Current site name Cottonwood
Related records 10164791

Geographic coordinates

Geographic coordinates: -121.43658, 37.38103 (WGS84)
Elevation 732
Relative position N. SIDE OF BEAUREGARDE CREEK, 1/4 MI. OF THE TRIPLE JUMP CLAIM.

Site location context

Political divisions (FIPS codes)

Santa Clara(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Boardman(quadrangle 1:24,000 scale)

San Jose(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Francisco Bay(hydrologic unit)

San Francisco Bay(hydrologic accounting unit)

San Francisco Bay(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Santa Clara

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 006S 005E 28 California

Comments on the location information

  • LOCATED IN SW 1/4 SECTION 28 ; INFO FROM LAND.ST :UNDETERMINED

Commodities

Commodity Importance
Manganese Critical Primary

Analytical data

Result ORE GRADE 35 TO 40 PERCENT MANGANESE

Nearby scientific data

(1) -121.43658, 37.38103
ListMap

Economic information

Ore body information

  • Width 1.52M

Comments on the geologic information

  • GEOL.DESC: SERIES OF SILICEOUS MANGANESE OXIDE BLOCKS, 2 TO 5 FT. WIDE, EXPOSED OVER DISTANCE OF 40 FT., AND TREND N 30 W, WITH NEAR VERTICAL DIP. THESE MAY BE FAULTED SEGMENTS OF A SINGLE BED. THEY ARE ASSOCIATED WITH GREENSTONE AND CUT BY QUARTZ VEINS. SOME OF ADJACENT SHALE HAS BEEN CHLORITIZED. ANOTHER ORE BODY IS 10 FT. LONG, 5 FT. WIDE, STRIKES N AND IS NEAR VERTICAL. IT LIES ADJACENT TO 5 FT. THICK GREENSTONE BODY.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 152 1950 P. 248

  • Deposit

    D.O.M. BULL. 125 1943 P. 175

  • Deposit

    BAILEY E.H. AND HARDEN D.R., 1975 U.S.G.S. MIN. RES. MAP I-909

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.