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Brown Silica Deposit

Past Producer in Jefferson county in Montana, United States with commodity Silica
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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. Geologic structures
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10019444
MRDS ID DC10373
Record type Site
Current site name Brown Silica Deposit

Geographic coordinates

Geographic coordinates: -112.03421, 46.40101 (WGS84)
Location accuracy 500(meters)
Relative position ABOUT 1.5 KM NW OF JEFFERSON CITY.

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Jefferson City(quadrangle 1:24,000 scale)

Butte North(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Missouri(hydrologic unit)

Upper Missouri(hydrologic accounting unit)

Missouri-Marias(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008N 003W 31 Montana

Comments on the location information

  • 2.2 KM W OF EMERSON PEAK.

Commodities

Commodity Importance
Silica Primary

Materials information

Materials Type of material
Quartz Ore

Analytical data

Result S102 99.70%
Result AL203 0.249%

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -112.03421, 46.40101
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Colorado (Corbin-Wickes) District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Edgar G. Brown
    Home office P. O. Box 15, Jefferson City, Mt.

Reserves and resources

  • Type In-situ
    Estimate year 1966
    Total resources 24000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silica SiO2 99.63 wt-pct Silica Major 1966

Comments on the reserve resource information

  • PROBABLE RESERVES MAY BE OVER 100000 TONS.

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 16, P. 86.

  • Deposit

    USGS PP 428, PL. 1

  • Deposit

    MBMG BULL 54, P. 17-19.

  • Reserve-Resource

    MBMG BULL 54, P. 17.

General comments

Subject category Comment text
Deposit RING-SHAPED QUARTZ DIKE CUTTING THE BOULDER BATHOLITH. 60 FT WIDE AND 1200 FT LONG

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-DEC-1981 Wise, Kristine K. (Elliott, James E.) 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