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Horse Creek Quartz Diorite Pegmatite

Occurrence in Madison county in Montana, United States with commodities Quartz, Feldspar, Mica, Chromium
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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. Host and associated rocks
  9. Nearby scientific data
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10019910
MRDS ID DC11909
Record type Site
Current site name Horse Creek Quartz Diorite Pegmatite

Geographic coordinates

Geographic coordinates: -112.11725, 45.43546 (WGS84)
Elevation 1798
Location accuracy 500(meters)
Relative position 4.5 MJ ESE OF SHERIDAN, Within .25 Mi Radius, Within .25 Mi Radius

Site location context

Political divisions (FIPS codes)

Madison(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Copper Mountain(quadrangle 1:24,000 scale)

Dillon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Ruby(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management MT)

Bureau of Land Management MT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Montana Madison

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 005S 004W 05 N2 OF N2 Montana

Comments on the location information

  • ON HORSE CREEK

Commodities

Commodity Importance
Quartz Primary
Feldspar Primary
Mica Primary
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
    Rock unit name Pre Belt
    Rock description Pre Belt
    Stratigraphic age (youngest) Neoarchean
    Stratigraphic age (youngest) Neoarchean

Nearby scientific data

(1) -112.11725, 45.43546
ListMap

Economic information

Controls for ore emplacement

  • Fractures

Comments on the geologic information

  • GEOL.DESC: DIKE CONTAINS CHROMITE BAND, VEINLETS OF CHLINOCHLORE, FIBROUS AND MASSIVE SERPENTINE. PEG. CONTAINS MOSTLY PLAGIOCLASE AND THIN 1 INCH BIOTITE PLATES. ONLY QUARTZ DIORITE PEGMATITE RECORDED FROM MONTANA.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Significant No

Mining district

District name Sheridan (Horse Creek) District

Reference information

Bibliographic references

  • Deposit

    MONT. B.M. AND GEOL. MEM. 28, 1949, P. 26, 27.

  • Deposit

    CONSV. DIV. COMP. DATE, 07-11-1963

General comments

Subject category Comment text
Deposit OF SLIGHT COMMERCIAL VALUE BUT PECULIAR SCIENTIFIC INTEREST. 50 FT ADIT ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-74 Unknown U.S. Geological Survey
Updater 01-JAN-83 Loen, Jeffrey S. (Pearson, Robert C.) 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