Iron Mask Prospect

Occurrence in Pima county in Arizona, United States with commodity Copper
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. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10039498
MRDS ID M050171
Record type Site
Current site name Iron Mask Prospect
Alternate or previous names Mccleary

Geographic coordinates

Geographic coordinates: -110.86568, 31.76319 (WGS84)
Elevation 1576
Relative position 30 MILES S. 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)

Federal lands

Coronado National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 19S 14E 24 Arizona

Commodities

Commodity Importance
Copper Tertiary

Comments on the commodity information

  • MICROSCOPIC TOURMALINE OCCURS IN GANGUE. LARGE AMT. IRON IN VEINS.

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Elephant Head Qtz. Monz.-Qtz. Monz
    Rock description Elephant Head Qtz. Monz.-Qtz. Monz
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -110.86568, 31.76319

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
    Dip STEEPLY N.

Comments on the geologic information

  • MAJOR.UNITS: BASIN AND RANGE. ; 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 AND HIGH ANGLE NORMAL FAULTING AND FOLDING.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1915

Mining district

District name Old Baldy District

Land status

Ownership category National Forest

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit PHYSICAL DIMENSIONS NOT AVAILABLE.
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-AUG-1972 Keith, William J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.