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  3. Mineral Resource Data System (MRDS)

Noonday Prospect

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. 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 10039403
MRDS ID M050033
Record type Site
Current site name Noonday Prospect

Geographic coordinates

Geographic coordinates: -110.79874, 31.86902 (WGS84)
Relative position 28 MILES SE OF TUCSON

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Helvetia(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(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 18S 15E 15 Arizona

Commodities

Commodity Importance
Copper Tertiary

Comments on the commodity information

  • MINOR ORE IN CRUSHED SILICIC ZONE REST IN "VEIN" - SCHRADER -1909

Materials information

Materials Type of material
Chalcopyrite Ore
Copper Ore
Pyrite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite
    Rock unit name Continental Granod 1450+-10my Granodiorite
    Rock description Continental Granod 1450+-10my Granodiorite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -110.79874, 31.86902
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Homoclinal ; Reg.Trends: Tilting And Broad Open Folds In S. And Extensive Faulting In N.
Type of structure Local
Structure description Thrust And Normal Faulting - Fracture Zones

Ore body information

  • General form TABULAR
    Width 0.46M
    Depth to bottom 21.34M

Controls for ore emplacement

  • Ore Generally In Lime-Silicate Zones Controlled By Faults And Fractures.

Comments on the geologic information

  • ORE GEN IN LIME-SILICATE ZONES CONTROLLED BY FAULTS AND FRACTURES. ; GEOL.DESC: AGE OF MINERALIZATION BELIEVED TO BE THAT OF THE QUARTZ LATITE INTRUSIVE OF DREWES-1971. ; REG.COM: STRUCTURE IN DISTRICT IS THRUST FAULTING - HIGH ANGLE NORMAL FAULTING AND FOLDING.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Helvetia-Rosemont District

Land status

Ownership category Private

Comments on the workings information

  • DISTRICT IS POSSIBLY NEW PORPH. COPPER DEPOSIT.

Comments on development

  • ANACONDA REPORTS ROSEMONT - HELVETIA INTRUSIVE QUARTZ LATITE AS POTENTIAL PORPH. COPPER DEPOSIT IN 1971

Reference information

Bibliographic references

  • Deposit

    SCHRADER, F. C. 1915 USGS BULL. 582

  • Deposit

    ARIZONA BUREAU OF MINES 1971 FIELDNOTES V. 1 NO. 2

  • Deposit

    DREWES, H. 1971 USGS MAP I-613 (SAHUARITA QUAD)

  • Deposit

    1909 RECON F. C. SCHRADER U.S.G.S. BULL. 582

  • Deposit

    1971 DIREXPL ANACONDA-POSSIBLE NEW PORPH. COPPER DEPOSIT.

  • Deposit

    1971 GEOLMAP H. DREWES U.S.G.S. MAP I-613

General comments

Subject category Comment text
Deposit DEPOSIT IS ON THRUST FAULT.
Deposit THE STRATIGRAPHIC UNITS USED ARE THOSE OF H. DREWES - 1971 USGS MAP I-613 ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Keith, William J. 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.