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Denton Mine

Producer in Greenlee county in Arizona, United States with commodities Manganese, Gypsum-Anhydrite
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Geologic information

Identification information

Deposit ID 10027134
MRDS ID M002203
Record type Site
Current site name Denton Mine
Alternate or previous names Black Butte Mine, Thurston and Hardy Mine, Godfrey Mine, Sanders Manganese Mine
Related records 10258681

Geographic coordinates

Geographic coordinates: -109.25286, 32.78344 (WGS84)
Elevation 1311
Relative position 11 MILES BY ROAD NW OF DUNCAN.
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Geographic areas

Country State County
United States Arizona Greenlee

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 007S 030E 34,35 W2 (35) Arizona

Comments on the location information

  • 2 MILES NE OF ASH PEAK SUMMIT; SEE: GODFREY MINES. ; INFO FROM LAND.ST :(1973)

Commodities

Commodity Importance
Manganese Primary
Gypsum-Anhydrite Tertiary

Materials information

Materials Type of material
Psilomelane Ore
Pyrolusite Ore
Calcite Gangue
Gypsum Gangue
Limonite Gangue

Alteration

  • (Local) Basalt Is Extensively Decomposed And Is Altered In The Shear Zones To A Crunbly And Clayey Material; Cavitites And Vesicles Of Basalt Are Filled With A White Mineral Of Secondary Origin; Surface Oxidation To Unknown Depths

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Rock unit name Tertiary Volcanic Flows
    Rock description Tertiary Volcanic Flows
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt

Nearby scientific data

(1) -109.25286, 32.78344
ListMap

Geologic structures

Type Description Terms
Regional Steep Northerly Trending Zones Of Shearing And Brecciation In Brownish Red Basalt Overlain By Light Pink Rhyolite
Local 2 Roughly Parallel Shear Zones Separated By Highly Altered Basalt Of Varying Thickness; Manganese Deposits Confined To Basalt

Ore body information

  • General form LENSES, STRINGERS
    Strike N 72 W
    Dip 70 NE
    Width 18.29M
    Length 609.6M

Controls for ore emplacement

  • Manganese Deposits Are Contained In 2 Shear Zones Traversing Vesicular Basalt Flow

Comments on the geologic information

  • ORE WAS PRIMARILY MINED FROM BOTH ENDS OF THE SOUTHERN SHEAR ZONE; VEIN WALLS ACCOMPANIED BY GANGUE OR GOUGE OF RHYOLITE WALL ROCK; SECONDARY ENRICHMENT ALONG FISSURES IS BELIEVED TO HAVE OCCURRED FROM BELOW THE ORE DEPOSITS; MANGANESE CONTENT INCREASES WITH DEPTH (TO DEPTHS OF 30-60 FT), THEN RAPIDLY DECREASES

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Both metallic and non-metallic
Deposit size Small
Significant No
Discovery year 1917
Discoverer R.V. Thurston And Joseph Hardy
Discovery method Ore-Mineral In Place
Year of first production 1917

Mining district

District name Ash Peak District

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Raymond And G.T. Godfrey (Ace Building And Roofing Supplies-
    Last year 1961

Production statistics

  • Year 1918
    Period 1917 - 1918
    Accuracy Estimate
    Description Cp_Grade: ^45 % Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Manganese Manganese 45wt-pct
  • Year 1955
    Period 1952 - 1955
    Description Cp_Grade: ^39.3 % Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Manganese Manganese 39wt-pct

Workings at the site

  • Type of workings Surface/Underground
    Length 121.92M
    Overall depth 25.6M
    Overall length 822.96M

Comments on the workings information

  • DEVELOPMENT INCLUDED 2 SHALLOW OPEN CUTS 1200 FT APART ON THE NORTHERN SHEAR ZONE; 2 SHAFTS WITH DEPTHS OF 30 FT AND 84 FT ON THE EAST END OF THE SOUTHERN SHEAR ZONE; SEVERAL OPEN CUTS AND DRIFTS ALONG THE SOUTHERN SHEAR ZONE; 1 SHAFT 60 FT DEEP ON THE WEST END OF THE SOUTHERN SHEAR ZONE; TRENCHING FOR MANGANIFEROUS FLOAT; REWORKING OF OLD TAILINGS

Comments on development

  • OPERATORS INCLUDED HAROLD SHARP, M.T. SANDERS (OWNER, 1940-1951) ASH PEAK MINING CO (1954-1955), WILLIAM ALLISON (ALLISON STEEL CO), WOOTAN AND MCGAVEN, JOHN POSPOHOLA (PART OWNER), ASH PEAK MANGANESE CO; 26 UNPATENTED CLAIMS INCLUDING THE A-1 CLAIMS OF PARADISE AND SPW IN GRAHAM COUNTY

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M002203
U.S. Bureau of Mines Minerals Availability System MAS 0040110023

Bibliographic references

  • Deposit

    JONES, E.L. JR. AND RANSOME, F.L., 1920 , DEPOSITS OF MANGANESE ORE IN ARIZONA: U.S.G.S. BULLETIN 710-D, P. 130.

  • Deposit

    WILSON, E.D. AND BUTLER, G.M., 1930 , MANGANESE ORE DEPOSITS IN ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 127 , P. 62.

  • Deposit

    FARNHAM, L.L., STEWART, L.A., AND DELONG, C.W., 1961 , MANGANESE DEPOSITS OF EASTERN ARIZONA: U.S.B.M. INFORMATION CIRCULAR 7990 , P. 99.

  • Deposit

    USBM FILES, DENTON CLAIMS.

  • Deposit

    ARIZONA DEPT OF MINERAL RESOURCES FILE DATA; DENTON MINE (SANDERS; THURSTON AND HARDY); HARDY MINE, BLACK BUTTE MINE.

  • Deposit

    ABGMT CLIPPINGS FILE; DENTON MANGANESE MINE, HARDY MINE, SANDERS MINE, THURSTON MANGANESE PROPERTY.

  • Production

    U.S.G.S. BULLETIN 710-D; U.S.B.M. I.C. 7990

General comments

Subject category Comment text
Deposit TWO SHEAR ZONES, 1500 FT APART, WHICH CUT THE BASALT AND PERHAPS THE RHYOLITE, BUT NO ORE HAS BEEN FOUND IN THE RHYOLITE. NORTH SHEAR ZONE, N70W, DIPS STEEPLY SOUTH, IS 1500 FT LONG, THE SOUTH SHEAR ZONE STRIKES N55-80W AND DIPS 70 NE. THE MINERALIZED LENGTH OF THIS ZONE IS 2000 FT, AND IS 10 FT WIDE. VEINS REACH MAXIMUM WIDTH OF 14 INCHES
Deposit SHOULD NOT BE CONFUSED WITH THE HARDY SHAFT AND HARDY GROUP ON THE ASH PEAK AND ASH PEAK EXTENSION PROPERTIES (HARDY GROUP ORIGINALLY PART OF THURSTON AND HARDY CLAIMS BUT WERE LATER TAKEN OVER BY ASH PEAK EXTENSION MINING CO); SEE ALSO: A-1 CLAIMS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 Gere, W. U.S. Geological Survey
Updater 01-JAN-1982 Calder, Susan R. U.S. Geological Survey