Benton Mine

Occurrence in Santa Cruz county in Arizona, United States with commodities Copper, Molybdenum, Gold
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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10026976
MRDS ID M001447
Record type Site
Current site name Benton Mine
Related records 10184159

Geographic coordinates

Geographic coordinates: -110.69511, 31.3407 (WGS84)
Elevation 1585

Site location context

Political divisions (FIPS codes)

Santa Cruz(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Duquesne(quadrangle 1:24,000 scale)

Nogales(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 Santa Cruz

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 024S 016E 15 NW OF SE Arizona

Comments on the location information

  • SAN ANTONIO CANYON, PATAGONIA MTS. INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Copper Primary
Molybdenum Primary
Gold Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Molybdenite Ore
Pyrite Ore

Alteration

  • (Local) Sericitic Zone At Contact Of Quartz Monzonite And Granite Porphyry

Analytical data

Result 14% CU, $6-8/T AU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -110.69511, 31.3407

Economic information

Geologic structures

Type of structure Local
Structure description Small Fissures In Granite Dike Contain Lenses Of Limonite, Azurite, And Malachite

Controls for ore emplacement

  • Ore Minerals Disseminated In 60 Ft N-S Trending Granite Porphyry Dike Cutting Quartz Monzonite Country Rock

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1882

Mining district

District name Querces District

Land status

Ownership category National Forest
Area name Coronado National Forest

Ownership information

  • Type Owner
    Owner Dennis Coughlin And Partners
    First year 1909

Comments on the production information

  • NO KNOWN PRODUCTION

Comments on the reserve resource information

  • LOW GRADE ORE BODY AVERAGES 2% CU ON E SIDE OF DIKE; OXIDIZED AREA OF DIKE SHOWS MALACHITE, AZURITE AVERAGING 14% CU, $6-8/T AU

Workings at the site

  • Type of workings Underground
    Length 50.29M

Comments on the workings information

  • TUNNEL

Comments on development

  • FIRST CLAIM LOCATED IN JANUARY 1908; 5 UNPATENTED CLAIMS

Reference information

Bibliographic references

  • Deposit

    ABGMT FILE DATA.

  • Deposit

    ADMR, 1962, MOLYBDENUM PROSPECTS IN AZ.

  • Deposit

    SIMONS, USGS MAP I-762.

  • Deposit

    SCHRADER, 1915, USGS BULL 582.

  • Production

    KEITH, 1975; ABM FILE DATA

General comments

Subject category Comment text
Deposit THIS REPORT WAS TAKEN FROM RECORD M001447 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEODORE, USGS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit Discovery Year: EARLY 1880'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1983 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-MAY-1982 Calder, Susan R. Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

External references

Authoritative Arizona resources

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