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

Unnamed Prospect 117-15

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

Geologic information

Identification information

Deposit ID 10039874
MRDS ID M050986
Record type Site
Current site name Unnamed Prospect 117-15

Geographic coordinates

Geographic coordinates: -111.17347, 32.26344 (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 013S 011E 36 Arizona

Commodities

Commodity Importance
Copper Tertiary

Materials information

Materials Type of material
Calcite Gangue
Garnet Gangue
Limonite Gangue

Alteration

  • (Local) 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) -111.17347, 32.26344
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Strike Of Bedding

Controls for ore emplacement

  • Skarn Localized In Marble Bed

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

Workings at the site

  • Type of workings Underground
    Overall depth 5M

Comments on the workings information

  • SHAFT 4-5M DEEP

Reference information

Bibliographic references

  • Deposit

    ASHLEY, R. P., 1974 , FIELD EXAM

General comments

Subject category Comment text
Deposit CALCITE GARNET SKARN INTERLAYER IN 1.5M THICK MARBLE BED IN HORNFELSIC ARGILLITE. ABUNDANT LIMONITE ON FRACTURES BUT NO OTHER SIGN OF MINERALIZATION IN SHAFT. QUARTZ MONZONITE APOPHYSIS MUST INTERSECT PIT - MUCH FINE-GRAINED QUARTZ MONZONITE ON DUMP. ONE SMALL SPOT IN QTZ ABOVE SHAFT SHOWS CU SILICATE. ; INFO.SRC : 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-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.