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Mammoth - St. Anthony Mine

Past Producer in Pinal county in Arizona, United States with commodities Gold, Lead, Zinc, Vanadium, Silica, Silver, Copper, Molybdenum, Fluorine-Fluorite, Barium-Barite, Tungsten
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Reserves and resources
  20. Workings at the site
  21. Links to other databases
  22. Bibliographic references
  23. General comments
  24. Reporter information

Geologic information

Identification information

Deposit ID 10039507
MRDS ID M050189
Record type Site
Current site name Mammoth - St. Anthony Mine
Alternate or previous names Tiger, Collins, Mohawk, New Years, Mammoth, St. Anthony, Mammoth Mine, Tiger Mine Tailings, Mammoth Tailings
Related records 10210598, 10234583

Geographic coordinates

Geographic coordinates: -110.68457, 32.70621 (WGS84)
Elevation 975
Relative position 50 MI NNE OF TUCSON, 21 MI S OF WINKLEMAN, NEAR TIGER, 3 MI SW OF MAMMOTH.

Site location context

Political divisions (FIPS codes)

Pinal(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mammoth(quadrangle 1:24,000 scale)

Mammoth(quadrangle 1:100,000 scale)

Tucson(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower San Pedro(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Pinal

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 008S 016E 26 SW4 Arizona

Comments on the location information

  • ON E SLOPE OF BLACK HILLS, GOOD ACCESS BY ROAD. INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Gold Primary
Lead Primary
Zinc Critical Primary
Vanadium Critical Primary
Silica Secondary
Silver Secondary
Copper Secondary
Molybdenum Secondary
Fluorine-Fluorite Critical Tertiary
Barium-Barite Critical Tertiary
Tungsten Critical Tertiary

Materials information

Materials Type of material
Anglesite Ore
Brochantite Ore
Chalcopyrite Ore
Chrysocolla Ore
Covellite Ore
Descloizite Ore
Diaboleite Ore
Dioptase Ore
Galena Ore
Gold Ore
Hemimorphite Ore
Linarite Ore
Malachite Ore
Mottramite Ore
Silver Ore
Smithsonite Ore
Sphalerite Ore
Vanadinite Ore
Willemite Ore
Wulfenite Ore
Amethyst Gangue
Barite Gangue
Calcite Gangue
Chlorite Gangue
Epidote Gangue
Fluorite Gangue
Pyrite Gangue
Quartz Gangue
Specularite Gangue
Tourmaline Gangue

Alteration

  • (Local) Oxidized To 900 Ft, Slight To Complete Silicification, Some Chlori Tization, Sericitization, Clay Alteration

Analytical data

Result MILL CONC IN 1938 CONTAINED 0.4 - 0.5% W03. TUNGSTEN IS CONTAINED IN WULFENITE AND VANADINITE
Result TYPICAL ORE ASSAYS 7.16% PB, 10.14% ZN, 0 .011 OZ/T AU, 1.53 OZ/T AG, 0.74% CU, 0.6% MG, 7.5% FE, AND 47.5% SI02

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
    Stratigraphic age (youngest) Mesoproterozoic
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Tertiary
    Chronological age 22.3
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Oraccle Granite
    Rock description Oraccle Granite
    Stratigraphic age (youngest) Precambrian
    Chronological age 1435

Nearby scientific data

(1) -110.68457, 32.70621
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Block Faulting Trending Nnw
Type of structure Local
Structure description Mammoth Fault Splits Ore Body Into 2 Segments

Ore body information

  • General form TABULAR
    Strike NW
    Dip STEEPLY NE & SW, NW
    Thickness 6.1M
    Depth to top 0M
    Depth to bottom 304.8M

Controls for ore emplacement

  • Wnw Shear Zones, Particularly Where Shearing And Brecciation Are Intense

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1879
Discoverer Frank Schultz
Year of first production 1881

Mining district

District name Mammoth District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Cyprus Minerals Co.
    First year 1988
  • Type Owner
    Owner Magma Copper Co.
    First year 1988

Comments on the production information

  • PROD FIGURES IN TABLE ARE FROM MAMMOTH MINE. $3 MILLION OF GOLD PRODUCED 1886-1918 (ELSING & HEINEMAN, 1936). TAILINGS WERE MINED FOR SILICA FLUX AND SHIPPED TO ASARCO'S SMELTER AT HAYDEN; ROCK FROM THE OPEN PIT HAS BEEN SHIPPED AS FLUX TO MAGNA'S SAN MANUEL SMELTER.

Reserves and resources

  • Type In-situ
    Estimate year 1987
    Total resources 4535000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.244 g/mt Gold Major 1987

Workings at the site

  • Type of workings Surface
    Overall depth 304.8M

Comments on the workings information

  • OLD UNDERGROUND WORKINGS ARE NOW INACCESSIBLE.

Comments on development

  • MINE CLOSED IN 1952. ST. ANTHONY ORIGINALLY DEVELOPED AS 3 MINES. CYPRUS EXPLORING PROPERTY AS POTENTIAL LARGE GOLD PRODUCER AND WILL BE OPERATOR IN EXCHANGE FOR A 50% INTEREST IN THE PROPERTY.

Reference information

Bibliographic references

  • Deposit

    PETERSON, 1938, ABM BULL 144.

  • Deposit

    WILSON ET AL, 1934, ABM BULL 137.

  • Deposit

    CREASEY, 1965, USGS PP 471.

  • Deposit

    CREASEY, 1950, ABM BULL 156.

  • Deposit

    VAN ALSTINE, R.E., AND MOORE, R.T., 1969, FLUORSPAR, IN ABM BULLETIN 180, USGS BULLETIN 871, P. 353.

  • Deposit

    PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERALS CARD FILE.

  • Deposit

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

  • Deposit

    SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: UNITED STATES BUREAU OF MINES SPECIAL PUBLICATION, 334 P.

  • Other Database

    CIMRI

  • Reserve-Resource

    SAWYER AND OTHERS, 1992 AND NIEMUTH, 1987.

General comments

Subject category Comment text
Deposit TWO MAJOR VEINS, THE MAMMOTH AND THE COLLINS. MO-V MINERALIZATION POSTDATES PB-CU-ZN MINERALIZATION. DEPOSITS OCCUR WHERE TERTIARY RHYOLITE INTRUDES PRECAMBRIAN QUARTZ MONZONITE.
Deposit THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORDS D000829 AND M0 50189 WITH RECORD D000829 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERS ON T.G. THEODORE, USGS. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1983 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-SEP-1991 Carbonaro, Marguerite M. 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.