Giroux Group

Past Producer in Mineral county in Nevada, United States with commodity Copper
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. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10045473
MRDS ID M233220
Record type Site
Current site name Giroux Group
Alternate or previous names Calavada?, Arizona-Nevada

Geographic coordinates

Geographic coordinates: -118.09039, 38.58742 (WGS84)

Site location context

Political divisions (FIPS codes)

Mineral(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sunrise Flat(quadrangle 1:24,000 scale)

Walker Lake(quadrangle 1:100,000 scale)

Walker Lake(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Gabbs Valley(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Mineral

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008N 035E Nevada

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chrysocolla Ore
Cuprite Ore
Malachite Ore
Hematite Gangue

Alteration

  • (Local) Silicification

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Granitic Rocks
    Rock description Granitic Rocks
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Luning
    Rock description Luning

Nearby scientific data

(1) -118.09039, 38.58742

Economic information

Ore body information

  • Width 21.34M

Comments on the geologic information

  • THE DEPOSIT IS IN PART CAPPED BY LATER FLOWS OF BIOTITE RHYOLITE. THERE IS CONSIDERABLE FAULTING ALONG THE GRANITIC-LIMESTONE CONTACT ZONE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1916

Mining district

District name Santa Fe District

Ownership information

  • Type Owner
    Owner Arizona-Nevada Copper Co.
    First year 1915

Comments on the production information

  • SMALL SHIPMENT IN 1916.

Comments on the workings information

  • 1,000 FOOT SHAFT AND UNKNOWN AMOUNT OF UNDERGROUND WORKINGS.

Reference information

Bibliographic references

  • Deposit

    ROSS, D. C., 1961, GEOLOGY AND MINERAL DEPOSITS OF MINERAL COUNTY, NEVADA; NBMG BULL. 58

  • Deposit

    HILL, 1915, SOME MINING DISTRICTS IN NORTHEASTERN CALIFORNIA AND NORTHWESTERN NEVADA; USGS BULL. 594

  • Deposit

    CLARK, 1922, GEOLOGY AND ORE DEPOSITS OF SANTA FE DISTRICT, NEVADA; CALIF. UNIV. DEPT. GEOL. SCI., V. 14, NO. 1

  • Production

    ROSS, 1961, TABLE 6.6

General comments

Subject category Comment text
Deposit A 70-FOOT TACTITE ZONE OF DARK SILICEOUS BRECCIATED LODE MATERIAL LIES BETWEEN GRANITIC ROCK ON SOUTH AND ALTERED CRYSTALLINE LIMESTONE ON NORTH. OXIDIZED ORE OCCURS AS DEEP AS THE SHAFT WITH COPPER CARBONATES IN HEAVY LIMONITIC GOSSAN. CHRYSOCOLLA, MALACHITE, AND AZURITE OCCUR AS SMALL VEINLETS AND FILMS BETWEEN THE FRAGMENTS OF BRECCIA. A FEW POCKETS OF CUPRITE CAN BE FOUND, AND HEMATITE IS ABUNDANT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1981 Royse, Sue E. Nevada Bureau of Mines and Geology

Beyond USGS

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

Authoritative Nevada resources

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