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  3. Mineral Resource Data System (MRDS)

Sylvan Mine

Occurrence in Jefferson county in Montana, United States with commodity Uranium
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10019412
MRDS ID DC09965
Record type Site
Current site name Sylvan Mine
Related records 10148807

Geographic coordinates

Geographic coordinates: -112.25921, 46.30546 (WGS84)
Relative position 3.9 KM N OF BASIN

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Basin(quadrangle 1:24,000 scale)

Butte North(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boulder(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 Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 006N 005W 05 Montana

Comments on the location information

  • W SIDE OF DEER CREEK. ; INFO FROM LAND.ST :(1954)

Commodities

Commodity Importance
Uranium Primary

Materials information

Materials Type of material
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Silicified, Sericitized, Kaolinized

Analytical data

Result RADIOACTIVITY OF SAMPLE ASSAYED
Result 2.0% EU, .02% U, RADIOACTIVITY MOSTLY FROM RADIUM AT 9X10-9 GRAMS/GRAMS OF SAMPLE

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Butte Quartz Monzonite (Boulder Batholith)
    Rock description Butte Quartz Monzonite (Boulder Batholith)
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -112.25921, 46.30546
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Ore body information

  • Strike N 75 E
    Dip VERTICAL
    Width 0.61M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Basin (Cataract, Comet) District

Land status

Ownership category National Forest

Comments on the workings information

  • 3 CAVED ADITS

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THE RADIOACTIVE MATERIAL CONSISTS OF BLACK EARTHY MATERIAL ASSOCIATED WITH ABUNDANT UNALTERED EUHEDRAL PYRITE CRYSTALS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-NOV-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