1. Mineral Resources
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  3. Mineral Resource Data System (MRDS)

Aetna

Past Producer in Napa 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. Ownership information
  17. Production statistics
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10040782
MRDS ID M055653
MAS/MILS ID 60550118
Record type Site
Current site name Aetna
Alternate or previous names Aetna Consolidated, Pope Valley, Aetna Quick Silver Mines, Aetna Quick Silver Mines Consolidated, Aetna Quicksilver Mines Consolidated

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -122.48806, 38.65611 (WGS84)
Elevation 427
Location accuracy 2000(meters)
Relative position 18 MI N OF ST. HELENA. Deleted record 10163974 (MAS 0060550118) put location at 38-39-22, -122-29-17 main ent, within 100 m. MRDS record gave location as 38-39-27, -122-30-8. at "LOCATION UNCERTAIN. LOCATED AT CENTER OF SECTION BOUNDARY". No evidence of mining at either location. Used MAS location.

Site location context

Political divisions (FIPS codes)

Napa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Aetna Springs(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)

Geographic areas

Country State County
United States California Napa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 009N 006W 02,03 California

Comments on the location information

  • LOCATION UNCERTAIN. LOCATED AT CENTER OF SECTION BOUNDARY
  • PART OF MINE AREA IS IN SEC. 3.

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore

Alteration

  • (Local) Silica Carbonate Alteration Of Serpentine

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Franciscan Complex
    Rock description Franciscan Complex
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

Ore Body (1) -122.48806, 38.65611
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fractures And Lithologic Contacts
Type of structure Regional
Structure description Nw Trending Mayacmas Anticline

Ore body information

  • Strike NW - NE
    Dip SW - NW

Controls for ore emplacement

  • Fractures, Lithologic Contacts

Comments on the geologic information

  • BASALT DIKE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant Yes
Discovery year 1854
Discoverer Lawley

Mining district

District name East Mayacmas

Ownership information

  • Type Owner-Operator
    Owner Basin Montana Tunnel Co.
    First year 1943

Production statistics

  • Year 1960
    Period To 1960
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^6 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 2711g/mt

Comments on the production information

  • PRODUCTION DATES 1864, 1868 - 1880, 1884, 1888, 1890 - 1901, 1903 - 1904, 1909 - 1918, 1921 - 1923, 1925 - 1929, 1931 - 1944, 1947

Workings at the site

  • Type of workings Surface/Underground
    Length 7193.28M
    Overall depth 274.32M

Comments on the workings information

  • UNDERGROUND WORKINGS HAVE CAVED

Reference information

Bibliographic references

  • Deposit

    HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252

  • Deposit

    BAILEY, E. H., USGS, PERSONAL FILES

  • Deposit

    YATES, R. G. AND HILPERT, L. S., 1946, QUICKSILVER DEPOSITS OF THE EASTERN MAYACMAS DISTRICT, LAKE AND NAPA COUNTIES, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 42, no. 3, P. 231 - 286

  • Deposit

    RANSOME, A. L. AND KELLOGG, J. L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 35, P. 353 - 486

  • Deposit

    BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.

  • Deposit

    DAVIS, F.F., 1948, MINES AND MINERAL RESOURCES OF NAPA COUNTY, CALIF.: CJMG, V. 44, no. 2, P. 177, 413-414

  • Deposit

    ROSS, C.P., 1940, QUICKSILVER DEPOSITS OF THE MAYACMAS AND SULFUR BANK DISTRICTS, CALIF.: USGS BULL. 922-L, P. 327-353

  • Deposit

    CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD, CENTRAL VALLEY, INACTIVE MINE DRAINAGE IN THE SACROMENTO VALLEY, CALIFORNIA, STAFF REPORT, JULY 92, P. 72.

  • Production

    USBM DATA

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-07-01 Peterson, Jocelyn A. U.S. Geological Survey
Reporter 1996-06-04 Western Field Operations Center (WFOC) U.S. Bureau of Mines =0060550118 (10163974)
Editor 2010-11-05 Wilson, Anna B. U.S. Geological Survey =0060550118 (10163974), 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.