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  3. Mineral Resource Data System (MRDS)

Chicken Hawk Claims

Occurrence in Deer Lodge county in Montana, United States with commodities Cobalt, Copper
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10220596
MAS/MILS ID 0300230096
Record type Site
Current site name Chicken Hawk Claims
Alternate or previous names Cabin Claim

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -112.60339, 46.2096 (WGS84)
Elevation 2112
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Deer Lodge(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lockhart Meadows(quadrangle 1:24,000 scale)

Butte North(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Beaverhead-Deerlodge 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 Montana Deer Lodge

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 005 N 008 W 04 NWSESE Montana

Commodities

Commodity Importance
Cobalt Critical Primary
Copper Tertiary

Materials information

Materials Type of material
Arsenopyrite Unknown
Calcite Unknown
Chalcopyrite Unknown
Pyrite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -112.60339, 46.2096
ListMap

Economic information

Ore body information

  • Field Value
    MAS Column # 1
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 DISSEMINATED
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PYRITIZATION
    Type of Wallrock Alter. #2 BLEACHING
    Date of Last Modification 800922

Comments on the geologic information

  • THE CARBONATE GANGUE IS GENERALLY CALCITE BUT SOME SIDERITE OR ANKERITE OCCURS WITH THE CALCITE. THE PRINCIPAL SULFIDE MINERAL IS PYRITE. SOME OF THE LAYERS OF VOLCANIC ROCK CONTAIN MORE SULFIDE THAN ADJACENT LAYERS SUGGESTING THAT THE PERMEABILITY OF THE ANDESITE WAS PROBABLY THE CONTROLLING FACTOR. IT IS BELIEVED THAT THE MINERALIZATION OCCURRED DURING OR SHORTLY AFTER THE EMPLACEMENT OF THE BATHOLITH AND THAT THE SPARSE DISSEMINATED SULFIDES ARE PNEUMATOLYTIC IN ORIGIN THE ASSAYS SHOW THAT COBALT OCCURS IN TRACE OR BETTER AMOUNT IN THE PYRITIZED ANDESITE. IT OCCURS AS COBALTIAN ARSENOPYRITE. COBALT ASSAYS RANGE FROM TRACE TO 1.41 PERCENT
  • MOST OF THE ROCK IN THE GENERAL AREA IS QUARTZ MONZONITE OF THE BOULDER BATHOLITH. SCATTERED THROUGHOUT THE QUARTZ MONZONITE ARE MASSES OF METAMORPHOSED CRETACEOUS (?) VOLCANIC ROCKS AND SOME OLDER SEDIMENTARY ROCKS WHICH ARE EITHER LARGE INCLUSIONS OR ROOF PENDANTS. UNCONFORMABLY OVERLYING BOTH THE QUARTZ MONZONITE AND THE OLDER METAMORPHOSED ROCKS ARE RHYOLITE FLOWS AND SOME INTERBEDDED SANDSTONE LENSES OF PROBABLY TERTIARY AGE. MINERAL DEPOSITS OCCUR AS DISSEMINATED GRAINS AND SMALL VEINLETS IN RANDOM DIRECTIONS IN CERTAIN LAYERS OF THE OLDER VOLACNIC ROCKS. NO TRUE VEINS WERE SEEN.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Montana Cobalt Silver Crest Co.
    Home office Montana
    Year 1952

Reference information

Bibliographic references

  • Deposit

    CRIB

  • Deposit

    U.S. BUREAU OF MINES,WFOC,MINERAL PROPERTY FILE 0300230096.

General comments

Subject category Comment text
Deposit THIS PROPERTY CONTAINS ONLY SCATTERED DISSEMINATIONS OF SULFIDES, INCLUDING SOME ARSENOPYRITE CARRYING A LOW PERCENTAGE OF COBALT, IN INCLUSIONS OF META- ANDESITE IN THE BOULDER BATHOLITH. NO VEIN STRUCTURE OCCURS HERE.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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

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