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Marconi Mine

Producer in Pima county in Arizona, United States with commodities Zinc, Lead, Silver, Gold, Copper
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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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Production statistics
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10026757
MRDS ID M000090
Record type Site
Current site name Marconi Mine
Related records 10280549

Geographic coordinates

Geographic coordinates: -111.07041, 31.88068 (WGS84)
Elevation 1067
Relative position 2 MILES SW OF TWIN BUTTES

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Twin Buttes(quadrangle 1:24,000 scale)

Sells(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)

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 012E 12 Arizona

Comments on the location information

  • N CENTER SECTION 12 .

Commodities

Commodity Importance
Zinc Critical Primary
Lead Primary
Silver Primary
Gold Secondary
Copper Secondary

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Arkose

Nearby scientific data

(1) -111.07041, 31.88068
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fracture Zones In Arkose And Conglomerate.

Ore body information

  • General form SPOTTY

Controls for ore emplacement

  • Mineralization Along Fracture Zones.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1948
Year of last production 1948

Mining district

District name Pima District

Land status

Ownership category Private

Production statistics

  • Year 1948
    Accuracy Estimate
    Description Ap_Grade: ^6 % Zn, 3 % Pb, 2 Oz Ag/Ton, Minor Au, Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 56g/mt
    Ore Lead Lead 3wt-pct
    Ore Zinc Zinc 6wt-pct

Comments on the workings information

  • INCLINE SHAFTS

Comments on development

  • OPERATORS INCLUDED H.G. LYNCH

Reference information

Bibliographic references

  • Deposit

    KEITH, S. B., 1974 , INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189 , P. 135

  • Production

    ABM BULLETIN 189 , P. 135 .

General comments

Subject category Comment text
Deposit LARGELY OXIDIZED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey

Beyond USGS

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

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.