Iron Cap Mine

Past Producer in Graham county in Arizona, United States with commodities Lead, Zinc, Silver, Copper, Gold, Fluorine-Fluorite

Geologic information

Identification information

Deposit ID 10039448
MRDS ID M050094
Record type Site
Current site name Iron Cap Mine
Related records 10161369

Geographic coordinates

Geographic coordinates: -110.32845, 32.97899 (WGS84)
Elevation 1692
Relative position 2 MILES NE OF ARAVAIPA, 1/2 MILE NORTH OF LANDSMAN CAMP.
(click for info)

Geographic areas

Country State County
United States Arizona Graham

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 005S 020E 19 Arizona

Comments on the location information

  • INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Lead Primary
Zinc Primary
Silver Secondary
Copper Secondary
Gold Secondary
Fluorine-Fluorite Tertiary

Comments on the commodity information

  • ORES GENERALLY NOT OXIDIZED. ASSAY SHOWED 1-19 PCT PB, 1-35 PCT. ZN, LESS THAN 1.7 OZ. AG PER TON. TRACE CU, AU.

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Covellite Ore
Galena Ore
Sphalerite Ore
Calcite Gangue
Fluorite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) None

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Copper Creek Granodiorite
    Rock description Copper Creek Granodiorite
    Stratigraphic age (youngest) Pennsylvanian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Horquilla Formation;Pinkard Formation
    Rock description Horquilla Formation;Pinkard Formation

Nearby scientific data

(1) -110.32845, 32.97899

Geologic structures

Type Description Terms
Regional Block Faulting Trending Nnw. ; Reg.Trends: Minor Pre-Cretaceous E And Ne Trending Folds And Major Post-Cretaceous Nnw Trending Faults.
Local Low Angle. Reverse Faults Between Horquilla And Pinkard.

Ore body information

  • General form TABULAR
    Strike EW
    Dip 40 N

Controls for ore emplacement

  • Faults. Ore Conc. In Broad Low Plunging Anticlines.

Comments on the geologic information

  • GEOL.DESC: SOME VEINS IN FAULTS BETWEEN FORMATIONS. OTHERS ARE WHOLLY IN LIMESTONE BEDS.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both metallic and non-metallic
Deposit size Small
Significant No
Discovery method Ore-Mineral In Place

Mining district

District name Aravaipa District

Land status

Ownership category Private

Comments on the production information

  • PRODUCTION NOT GIVEN.

Workings at the site

  • Type of workings Surface/Underground
    Length 182.88M

Comments on the workings information

  • LG. GLORY HOLE IN LIMESTONE FM.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M050094
U.S. Bureau of Mines Minerals Availability System MAS 0040090178

Bibliographic references

  • Deposit

    USGS PP 461.

  • Deposit

    USBM RI 4007.

  • Deposit

    ABM BULL 156.

  • Deposit

    PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.

  • Deposit

    1925 GEOLMAP ROSS, C.P. BULL. 763.

  • Deposit

    1964 GEOLMAP SIMONS, F.S. PROF. PAPER 461.

  • Other Database

    CIMRI

  • Production

    SIMONS, F.S. 1964.

General comments

Subject category Comment text
Deposit VEINLETS CONTAIN IRREGULAR LENSES AND PODS OF ORE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1972 Bergquist, Joel R. U.S. Geological Survey
Updater 01-DEC-1992 Orris, Greta J. U.S. Geological Survey