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  3. Mineral Resource Data System (MRDS)

Unnamed Prospect 117-61

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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10039827
MRDS ID M050907
Record type Site
Current site name Unnamed Prospect 117-61

Geographic coordinates

Geographic coordinates: -111.15986, 32.26428 (WGS84)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Avra(quadrangle 1:24,000 scale)

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

Tucson(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Brawley Wash(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 13S 12E 31 Arizona

Commodities

Commodity Importance
Copper Tertiary

Alteration

  • (Local) Py-Gossan; Skarn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite

Nearby scientific data

(1) -111.15986, 32.26428
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Economic information

Geologic structures

Type of structure Local
Structure description Shear (?) Zone With Skarn

Ore body information

  • General form TABULAR
    Strike S65E
    Dip 77S
    Width 2M

Controls for ore emplacement

  • Marble Body (Limestone Pod)

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Amole District

Land status

Ownership category National Park

Comments on the workings information

  • SHAFT AND TUNNEL BEHIND IT, 4 PITS OVER 35M

Reference information

Bibliographic references

  • Deposit

    ASHLEY, R. P., 1974 , FIELD EXAM

General comments

Subject category Comment text
Deposit SHEAR ZONE HAS 1M OF MASSIVE RED SPECULAR HEMATITE WITH SOME YELLOW-BROWN LIMONITE ON FOOTWALL SIDE, AND 1M OF EPIDOTE-CALCITE SKARN ADJACENT ON HANGING WALL SIDE. HANGING WALLIS FINE GRAINED MARBLE. MOST MATERIAL ON DUMP IS CRUMBLY QUARTZ WITH ABUNDANT, LOCALLY MASSIVE PYRITE (UNOXIDIZED EQUIVALENTOF GOSSAN MATERIAL). ALSO ON DUMP IS SMALL AMOUNT OF GARNET-CALCITE AND GARNET-MAGNETITE / HEMATITE -CALCITE SKARN WITH MINOR CU SILICATES AND PYRITE. ; 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.