1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed Prospect 101-12

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. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10039752
MRDS ID M050771
Record type Site
Current site name Unnamed Prospect 101-12

Geographic coordinates

Geographic coordinates: -111.12597, 32.19928 (WGS84)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Brown Mountain(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)

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 12E 21 Arizona

Commodities

Commodity Importance
Copper Tertiary

Materials information

Materials Type of material
Quartz Gangue

Alteration

  • (Local) Argillitic

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) -111.12597, 32.19928
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Shear Zone

Ore body information

  • Strike N86E
    Dip 48S
    Width 1.5M

Controls for ore emplacement

  • Limonite-Rich Areas Contain Cu-Silicate.

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

  • INCLINED SHAFT, ALSO TWO PITS ABOUT 50M TO EAST.

Reference information

Bibliographic references

  • Deposit

    ASHLEY, R. P., 1974 , FIELD EXAM

General comments

Subject category Comment text
Deposit ARGILLIC ALTERATION IN SHEAR ZONE. VEIN MATERIAL ON DUMP IS FINE-GRAINED MASSIVE QUARTZ, LOCALLY CHALCEDONIC, WITH STREAKS OF MASSIVE LIMONITE PLUS QUARTZ TO SEVERAL CM WIDE. LIMONITE -RICH AREAS CONTAIN CU SILICATE. HORNFELS CONTAINS DISSEMINATED PYRITE AT LEAST LOCALLY. ; 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.