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  3. Mineral Resource Data System (MRDS)

Unnamed Prospect 117-24

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. Geologic structures
  12. Ore body information
  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 10039841
MRDS ID M050921
Record type Site
Current site name Unnamed Prospect 117-24

Geographic coordinates

Geographic coordinates: -111.17402, 32.26594 (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 11E 25 Arizona

Commodities

Commodity Importance
Copper Tertiary

Materials information

Materials Type of material
Malachite Ore
Tenorite Ore

Alteration

  • (Local) Quartz-Sericite-Pyrite; Propylitic; Pyrite-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 Sedimentary Rock > Clastic Sedimentary Rock > Arkose

Nearby scientific data

(1) -111.17402, 32.26594
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fracture Zone

Ore body information

  • Strike N70E
    Dip 75S
    Width 0.05M

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

  • TUNNEL WITH SHAFT AT PORTAL, ON FRACTURE ZONE (SEE ABOVE)

Reference information

Bibliographic references

  • Deposit

    ASHLEY, R. P., 1974 , FIELD EXAM

General comments

Subject category Comment text
Deposit SOME WHITE QUARTZ MONZONITE WITH FELDSPAR ALTERED TOQUARTZ -SERICITE (?), BIOTITE ALTERED TO CHLORITE, AND SOME EPIDOTE, ON DUMP. CU MINERALS IN SKARN, SCARCE. FRACTURE ZONE CONTAINS MASSIVE LIMONITE AND GYPSUM; SMALL PIECE OF RELICT MASSIVE PYRITE FOUND MAY BE FROM THIS ZONE. ARKOSE BEDS EXPOSED IMMEDIATELY TO WEST MAY HAVE QUARTZ-SERICITE ALTERATION. SOME FRAGMENTS OF HORNFELS ON DUMP HAVE QUARTZ MONZONITE VEINS AS MUCH AS SEVERAL CM WIDE. ; 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.