Gilliam Vermiculite Deposit

Producer in Madison county in Montana, United States with commodity Vermiculite
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. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10070450
MRDS ID W013392
Record type Site
Current site name Gilliam Vermiculite Deposit
Alternate or previous names Pony Vermiculite Deposit
Related records 10148521

Geographic coordinates

Geographic coordinates: -111.93614, 45.7124 (WGS84)
Elevation 1880
Relative position 12 KM WEST OF HARRISON

Site location context

Political divisions (FIPS codes)

Madison(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pony(quadrangle 1:24,000 scale)

Bozeman(quadrangle 1:100,000 scale)

Bozeman(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Jefferson(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(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 Madison

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 001S 003W 26,35 Montana

Commodities

Commodity Importance
Vermiculite Primary

Materials information

Materials Type of material
Vermiculite Ore
Feldspar Gangue
Garnet Gangue
Quartz Gangue

Alteration

  • (Local) Biotite To Vermiculite

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Gneiss And Schist;Amphibolite
    Rock description Gneiss And Schist;Amphibolite

Nearby scientific data

(1) -111.93614, 45.7124

Economic information

Ore body information

  • General form UNKNOWN
    Strike N 70 W
    Dip 80 DEG NE
    Depth to top 0M

Controls for ore emplacement

  • Biotitic Layers

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Deposit size Small
Significant No

Mining district

District name Mineral Hill

Ownership information

  • Type Owner-Operator
    Owner Mine - X, Inc. C/O W. G. Forbes, Pony, Mt.

Comments on the reserve resource information

  • AMOUNT OF RESERVES UNKNOWN

Comments on the workings information

  • ALTHOUGH MORE DRILLING IS NEEDED HERE THE INDICATIONS ARE THAT IT IS SMALL SOME MINING DONE SPORADICALLY ON A SMALL SCALE.

Reference information

Bibliographic references

  • Deposit

    PERRY, E. S., 1948, TALC, GRAPHITE, VERMICULITE, AND ASBESTOS IN MONTANA: MONT. BUREAU OF MINES AND GEOLOGY MEM. 27, P. 32 - 3

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1976 Berg, Richard B. (Krohn, D. H.) U.S. Geological Survey

Beyond USGS

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

External references