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Senator Mine

Past Producer in Santa Clara county in California, United States with commodity Mercury
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Mineral rights holdings
  17. Land status
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10103810
MRDS ID M055621
MAS/MILS ID 60850107
Record type Site
Current site name Senator Mine
Alternate or previous names Senator, El Senator prospect, Senador

Geographic coordinates

Point of reference Geographic coordinates: Elevation UTM Precision Relative position Point location
Main Entrance -121.8934, 37.20947 (WGS84) 213 10 Noyes Shaft on topo (see pl. 14 of Bailey and Everhart).
(click for info)
Main Entrance -121.8925, 37.2109 (WGS84) 10 lowermost adit on topo. Likely 260 Level adit on pl 14 of Bailey and Everhart)
Main Entrance -121.89353, 37.21064 (WGS84) 10 uppermost adit on topo. Unlabeled adit on pl 14 of Bailey and Everhart.
Main Entrance -121.89338, 37.21104 (WGS84) 10 middle adit on topo. Likely 100 Level on pl 14 of Bailey and Everhart.
Main Entrance -121.89432, 37.20571 (WGS84) 10 260 Level on topo, this one on the south side of the ridge. (See pl. 14 of Bailey and Everhart).

Site location context

Political divisions (FIPS codes)

Santa Clara(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Los Gatos(quadrangle 1:24,000 scale)

San Jose(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Coyote(hydrologic unit)

San Francisco Bay(hydrologic accounting unit)

San Francisco Bay(hydrologic subregion)

California(hydrologic region)

Federal lands

LG(Federal land areas administered by LG)

Geographic areas

Country State County
United States California Santa Clara

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008S 001E 29 California

Comments on the location information

  • LOCATED ON SHAFT on topo (probably the Noyes shaft)

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Dolomite Gangue

Alteration

  • (Local) Silica Carbonate Alteration Of Serpentine

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Franciscan Complex
    Rock description Franciscan Complex
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

Main Entrance (1) -121.8934, 37.20947
ListMap
Main Entrance (2) -121.8925, 37.2109
ListMap
Main Entrance (3) -121.89353, 37.21064
ListMap
Main Entrance (4) -121.89338, 37.21104
ListMap
Main Entrance (5) -121.89432, 37.20571
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Local Fractures

Ore body information

  • Strike N 50 - 80 W
    Dip 40 SW
    Depth to top 0M
    Depth to bottom 393.19M

Controls for ore emplacement

  • Local Fractures

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1863
Production years 1863 - 1909 (INTERMITTENT), 1909 - 1912, 1915 - 1926

Mining district

District name New Almaden

Mineral rights holdings

Type of mineral rights Other

Land status

Ownership category County

Comments on the production information

  • ONE OF THE "OUTSIDE" NEW ALMADEN MINES. On the County Park property.

Workings at the site

  • Type of workings Underground
    Length 6400.8M

Reference information

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-07-01 Peterson, Jocelyn A. U.S. Geological Survey
Reporter 1990-05-17 Western Field Operations Center (WFOC) U.S. Bureau of Mines 0060850107 = newMRDS 10189360
Editor 2010-11-09 Wilson, Anna B. U.S. Geological Survey 0060850107 = newMRDS 10189360, merged and deleted.

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.