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Copper World Mine

Past Producer in Pima county in Arizona, United States with commodities Copper, Silver, Gold, Tungsten, Molybdenum, Wollastonite
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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. Land status
  17. Production statistics
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10039406
MRDS ID M050038
Record type Site
Current site name Copper World Mine
Alternate or previous names Brunswick, Owasco, Little Dave, Black Horse
Related records 10186445

Geographic coordinates

Geographic coordinates: -110.7679, 31.86069 (WGS84)
Elevation 1501
Relative position 28 MI SE OF TUCSON, ON N-S RIDGE BETWEEN SYCAMORE CANYON & HELVETI A GULCH.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Helvetia(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Santa Cruz(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 018S 015E 13,24 SW4 (13); NW4 (24) Arizona

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary
Tungsten Critical Secondary
Molybdenum Tertiary
Wollastonite Tertiary

Comments on the commodity information

  • MAJORITY OF CU MINERALS PROBABLY SECONDARY AFTER CHALCOPYRITE

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Malachite Ore
Molybdenite Ore
Powellite Ore
Scheelite Ore
Wollastonite Ore

Alteration

  • (Local) Silicification & Pyritization Of Limestone, Narrow Oxidized Streak S, Contact Metamorphic Minerals

Analytical data

Result 1-10% CU

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pennsylvanian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Horquilla Limestone;Abrigo Formation;Bolsa Quartzite
    Rock description Horquilla Limestone;Abrigo Formation;Bolsa Quartzite

Nearby scientific data

(1) -110.7679, 31.86069
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Homocline
Type of structure Local
Structure description Thrusts And Normal Faulting, Fracture Zones, Crushed Sedimentary Rocks

Ore body information

  • General form IRREGULAR LENTICULAR ZONES

Controls for ore emplacement

  • Dark, Less Crystallized Limestone Near Fractures And Thrust, Pyriti Zed Limestone

Comments on the geologic information

  • ALSO MARTIN FORMATION, EPITAPH FORMATION, AND SCHERRER FORMATION NEARBY.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1900
Year of first production 1900

Mining district

District name Helvetia-Rosemont District

Land status

Ownership category National Forest

Production statistics

  • Year 1916
    Period 1899-1916
    Material CU ORE
    Accuracy Estimate
    Description Cp_Grade: ^5% Cu, 1 Oz/T Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Silver Silver 28g/mt
    Major Ore Copper Copper 5wt-pct

Comments on the production information

  • TOTAL PRODUCTION $705,000 (FOR 1900-1910?)

Workings at the site

  • Type of workings Underground
    Area 0.019HA
    Length 3657.6M
    Overall depth 152.4M

Comments on the workings information

  • SHAFT WORKINGS; INCLINED SHAFT FIRST OPENED IN 1900, LATER IN 190 6-MARCH 1909, CLOSED IN 1910. 4 LEVELS

Comments on development

  • ANACONDA REPORTS ROSEMONT-HELVETIA INTRUSIVE QUARTZ LATITE AS POTENTIAL PORPHYRY IN 1971. PREVIOUS OPERATORS INCLUDE: HELVETIA COPPER C O, MICHIGAN DEVELOPMENT CO, HELVETIA COPPER CO OF ARIZONA, BLANKENSHIP, SANTA RITA MINING CO.

Reference information

Bibliographic references

  • Deposit

    SCHRADER, 1915, USGS BULL 582

  • Deposit

    CREASY, 1955 USGS BULL 1027-F

  • Deposit

    ABM, 1971, FIELD NOTES, V.1, NO. 2

  • Deposit

    DREWES, 1971, USGS MAP I-613

  • Deposit

    KEITH, S.B., 1974, INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189, P. 130.

  • Deposit

    PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERAL CARD FILES.

  • Other Database

    CIMRI

  • Production

    KEITH, 1974; CREASY, 1955

General comments

Subject category Comment text
Deposit THIS RECORD REPRESENTS A MERGER OF ORIGINAL RECORD M050038 WITH RECORD US04104 OF JAN WILT IN MOLYBDENUM FILE, AND WITH RECORD D000794 (ELLIOT, J.).CONTACT PERSON T.G. THEODORE, USGS ; INFO.SRC : 1 PUB LIT
Deposit NO RECOGNIZABLE ORE SHOOTS. LARGE MASSES OF LIMESTONE HAVE BEEN COMPLETELY CONVERTED TO WOLLASTONITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1975 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-MAR-1983 Elliot, James E. And Wilt, Jan Alabama Geological Survey
Updater 01-NOV-1992 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

External references

Maps centered on this site

Authoritative Arizona resources

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