Silver District

Prospect in La Paz county in Arizona, United States with commodities Silver, Barium-Barite, Lead, Zinc
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. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Mineral rights holdings
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10400291
Record type District
Current site name Silver District

Geographic coordinates

Geographic coordinates: -114.59301, 33.08896 (WGS84)

Site location context

Political divisions (FIPS codes)

La Paz(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Picacho(quadrangle 1:24,000 scale)

Trigo Mountains(quadrangle 1:100,000 scale)

Salton Sea(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Imperial Reservoir(hydrologic unit)

Lower Colorado(hydrologic accounting unit)

Lower Colorado(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona La Paz

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 004 S 023 W 12 SW 1/4 Arizona

Comments on the location information

  • Since there are a number of small mines and prospects comprising this district, the location given is for the Black Rock Mine, which is commonly shown on topo maps.

Commodities

Commodity Importance
Silver Primary
Barium-Barite Critical Primary
Lead Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Silver Ore
Calcite Unknown
Quartz Unknown
Fluorite Unknown
Barite Unknown
Hematite Unknown
Limonite Unknown
Pyrolusite Unknown
Chlorite Unknown
Cerrusite Unknown
Cerargyrite Unknown
Vanadinite Unknown
Malachite Unknown
Galena Unknown
Smithsonite Unknown
Anglesite Unknown
Argentite Unknown

Alteration

  • (Local) Carbonization
  • (Local) Sericitic

Nearby scientific data

(1) -114.59301, 33.08896

Economic information

Ore body information

  • General form Irregular
    Thickness 69M
    Length 4800M
    Width 2400M
    Area 250HA

Controls for ore emplacement

  • Igneous
  • Faulting

Comments on the geologic information

  • The orebody dimensions are actually spatial dimensions within which veins could be found.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Both
Significant No

Mining district

District name Silver District
District name Eureka District

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Federal Lease
Type of mineral rights State Lease

Reserves and resources

  • Type In-situ
    Estimate year 1987
    Total resources 5704500mt ore
    Remarks Orbex Industries 1988 Annual Report
    Commodity Subtype Grade units Group Importance Year
    Silver AG 120 g/mt Silver Primary 1987
  • Type In-situ
    Estimate year 1981
    Measured 5443000mt ore
    Remarks From Arizona Pay Dirt, Feb. 1981
    Commodity Subtype Grade units Group Importance Year
    Silver AG 120 g/mt Silver Primary 1981
    Barium-Barite BASO4 17 wt-pct Barium Primary 1981

Reference information

Bibliographic references

  • Deposit

    Arizona Paydirt. New Jersey Zinc, Orbex plan Joint Venture, Exploration for Silver. June 1983, P. 24A

  • Location

    Wilson, E.D., Geology and Mineral Deposits of Southern Yuma County, Arizona, Arizona Bureau of Mines, 1933, PP. 50-76

  • Deposit

    Arizona Paydirt. New Jersey Zinc Plans Major Silver Mine and Mill Near Yuma. February 1981

Reporter information

Type Date Name Affiliation Comment
Reporter 02-MAR-1984 Dolzani, Roger U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.