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Crow Claims

Past Producer in Graham county in Arizona, United States with commodity Manganese
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Geologic information

Identification information

Deposit ID 10026949
MRDS ID M001257
Record type Site
Current site name Crow Claims
Related records 10161071

Geographic coordinates

Geographic coordinates: -109.24175, 32.74178 (WGS84)
Elevation 1366
Relative position 8 MILES WNW OF DUNCAN.
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Geographic areas

Country State County
United States Arizona Graham

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 008S 030E 14 CENTER OF N2 Arizona

Comments on the location information

  • ABOUT 1.0 MILE SE OF ASH PEAK SUMMIT; ADJACENT TO A-1 CLAIMS; GEODETIC AND UTM COORDINATES DESCRIBE PROSPECTS IN THE NE QUARTER OF SECTION 14.

Commodities

Commodity Importance
Manganese Primary

Comments on the commodity information

  • GANGUE CONSISTS PRIMARILY OF UNMINERALIZED FRAGMENTS OF VOLCANIC ROCK AND CALCITE

Materials information

Materials Type of material
Psilomelane Ore
Calcite Gangue

Alteration

  • (Local) Surface Oxidation

Host and associated rocks

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

Nearby scientific data

(1) -109.24175, 32.74178
ListMap

Geologic structures

Type Description Terms
Regional Steep Northerly Trending Zones Of Shearing And Brecciation In Volcanic Rocks
Local Manganese Deposits Form Lenticular Bodies Composed Of A Network Of Narrow Seams And Small Irregular Bunches Of Oxides Deposited Around Fragments Of Country Rock

Ore body information

  • Name of the ore body NORTHERN FRACTURE
    General form LENTICULAR/IRREGULAR BUNCHES
    Strike NORTH}N50W
    Dip W}60NE
    Width 0.91M
    Length 91.44M
  • Name of the ore body SOUTHERN FRACTURE
    General form LENTICULAR/IRREGULAR BUNCHES
    Strike NORTH}N50W
    Dip W}60NE
    Width 0.91M
    Length 15.24M

Controls for ore emplacement

  • Manganese Minerals Occur In 2 N-Trending Fractures That Cut Fine-Grained Volcanic Rock

Comments on the geologic information

  • DEPOSITS ARE SIMILAR TO THOSE ENCOUNTERED ON THE A-1 GROUP CLAIMS AND BLACK BEAUTY GROUP CLAIMS

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1951
Discoverer C.M. Magill

Mining district

District name Ash Peak District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner C. M. Magill And Associates
    First year 1961

Production statistics

  • Year 1955
    Period 1954 - 1955
    Accuracy Estimate
    Description Cp_Grade: ^23% Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Manganese Manganese 23wt-pct
  • Year 1955
    Period 1954 - 1955
    Accuracy Estimate
    Description Cp_Grade: ^39.6% Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Manganese Manganese 40wt-pct

Workings at the site

  • Type of workings Surface
    Overall depth 3.66M
    Overall length 76.2M
    Overall width 1.22M

Comments on the workings information

  • DEVELOPMENTS INCLUDED SHALLOW OPEN CUTS ON BOTH VEINS; MOST ORE WAS RECOVERED FROM 3 SHALLOW OPEN CUTS ON THE NORTH VEIN

Comments on development

  • OPERATORS INCLUDED JOHN T. MORRIS

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M001257
U.S. Bureau of Mines Minerals Availability System MAS 0040110033

Bibliographic references

  • 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. 105.

  • Deposit

    USBM FILES, CROW GROUP.

  • Production

    U.S.B.M. I.C. 7990.

General comments

Subject category Comment text
Deposit PROPERTY COMPRISES 4 CONTIGUOUS UNPATENTED CLAIMS; DEPOSITS CONTAINED IN 2 FRACTURES, OF WHICH THE NORTHERNMOST RANGES IN WIDTH FROM 2 TO 3 FT AND IS EXPOSED ON THE SURFACE FOR ABOUT 300 FT (STRIKES DUE NORTH AND DIPS STEEPLY TO WEST), AND THE SOUTHERNMOST HAS A WIDTH OF 3 FT AND IS TRACEABLE FOR 50 FT (STRIKES N50W AND DIPS 60NE)
Deposit SEE ALSO: A-1 CLAIMS AND BLACK BEAUTY GROUP FOR GEOLOGIC INFORMATION ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey
Updater 01-JAN-1982 Calder, Susan R. Arizona Bureau of Geology and Mineral Technology
Updater 01-JAN-1989 Orris, Greta J. U.S. Geological Survey