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Gulch A Pegmatites

Occurrence in Madison county in Montana, United States with commodities Kyanite, Mica
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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 10010544
MRDS ID D004311
Record type Site
Current site name Gulch A Pegmatites

Geographic coordinates

Geographic coordinates: -111.75641, 45.16241 (WGS84)
Elevation 1768
Relative position 5 MILES SOUTH OF VARNEY

Site location context

Political divisions (FIPS codes)

Madison(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Varney(quadrangle 1:24,000 scale)

Ennis(quadrangle 1:100,000 scale)

Bozeman(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Madison(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Madison

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008S 001W 05,08 Montana

Comments on the location information

  • LOCATION GIVEN IS APPROXIMATE FOR SW/4 OF SECTION 5. DEPOSIT DESCRIPTION IS FOR ONE PROSPECT IN GENERAL GULCH AREA.

Commodities

Commodity Importance
Kyanite Primary
Mica Secondary

Materials information

Materials Type of material
Kyanite Ore
Muscovite Ore
Graphite Gangue
Sillimanite Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble
    Rock unit name Cherry Creek Series
    Rock description Cherry Creek Series
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite

Nearby scientific data

(1) -111.75641, 45.16241
ListMap

Economic information

Controls for ore emplacement

  • Pegmatite Dikes And Sills

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Mining district

District name Varney

Reference information

Bibliographic references

  • Deposit

    HEINRICH, E, 1948, DEPOSITS OF THE SILLIMONITE GROUP OF MINERALS, SOUTH OF ENNIS, MADISON CO., MONT., MONT. BUREAU OF MINES AND GEOL, MISC. CONT. 10, P. 11.

  • Deposit

    HEINRICH, E, 1949, PEGMATITE MINERAL DEPOSITS IN MONT., MONT. BUR. OF MINES AND GEOL, MEM 28, P. 17.

  • Deposit

    1948 COMPILE MBMG., MISC CONT. 10.

  • Deposit

    1949 COMPILE MBMG., MEM 28.

General comments

Subject category Comment text
Deposit THE PEGMATITE DIKES AND SILLS APPEAR TO OCCUR IN A ZONE 200-300 FEET WIDE WHICH TRENDS EW, HOW EVER THE INDIVIDUAL BODIES VARY CONSIDERABLY IN THEIR ATTITUDE. (MEM 28, P. 16)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1980 Doyle, Brien (Wells, John) U.S. Geological Survey

Beyond USGS

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

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