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Unnamed Prospect 20-3

Occurrence in Pima county in Arizona, United States with commodity 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. 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. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10039730
MRDS ID M050734
Record type Site
Current site name Unnamed Prospect 20-3

Geographic coordinates

Geographic coordinates: -111.04597, 32.214 (WGS84)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cat Mountain(quadrangle 1:24,000 scale)

Silver Bell Mountains(quadrangle 1:100,000 scale)

Tucson(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 14S 13E 18,17 Arizona

Commodities

Commodity Importance
Copper Tertiary

Materials information

Materials Type of material
Chlorite Gangue

Alteration

  • (Local) Other: Silicification

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Late Cretaceous

Economic information

Ore body information

  • General form IRREGULAR, BLOBBY

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Amole District

Comments on the workings information

  • SHAFT, PROSP. PIT 20M DUE E OF SHAFT.

Reference information

Bibliographic references

  • Deposit

    ASHLEY, R. P., 1974 , FIELD EXAM

General comments

Subject category Comment text
Deposit SPECULAR HEMATITE, WITH CHLORITE (?) ON JOINT SURFACES OF MTL ON DUMP OF SHAFT. SHAFT RECENTLY USED AS WATER WELL. PROSP. PIT HAS CONSIDERABLE AMOUNT OF MATERIAL THAT IS VEINED WITH IRREG. BLOBBY SMALL CLEAR QTZ VEINS, AND HAS CHRYSOCOLLA ( AND MINOR AZURITE?) ON FRACTURES. WALLROCK IS GENERALLY SILICIFIED ALSO. ; INFO.SRC : 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1974 Ashley, Roger P. U.S. Geological Survey
Updater 01-FEB-1980 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.