Mccarthy Gypsum

Occurrence in Beaverhead county in Montana, United States with commodity Gypsum-Anhydrite
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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Reserves and resources
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10071875
MRDS ID W015563
Record type Site
Current site name Mccarthy Gypsum
Alternate or previous names Selby Property
Related records 10220696

Geographic coordinates

Geographic coordinates: -112.74059, 44.62907 (WGS84)
Elevation 2225
Relative position 7.5 MILES WEST OF LIMA

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dell(quadrangle 1:24,000 scale)

Lima(quadrangle 1:100,000 scale)

Dubois(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Red Rock(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 Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 014S 009W 06,07,17 Montana

Comments on the location information

  • SOUTHERN TENDOY RANGE

Commodities

Commodity Importance
Gypsum-Anhydrite Primary

Materials information

Materials Type of material
Gypsum Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Jefferson Dolomite; Shale, Limestone And Sandstone
    Rock description Jefferson Dolomite; Shale, Limestone And Sandstone
    Stratigraphic age (youngest) Late Devonian
    Stratigraphic age (youngest) Late Devonian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -112.74059, 44.62907

Economic information

Geologic structures

Type of structure Regional
Structure description Northwest Strike Of Folds And Rock Units
Type of structure Local
Structure description Two Northeast - Trending Faults Produce Left Lateral Displacement Of Gypsum Bed

Ore body information

  • General form TABULAR
    Strike N 15 DEG W
    Dip 60 - 85 DEG
    Plunge direction NORTH
    Length 731.52M
    Width 3.66M
    Depth to top 0M
    Depth to bottom 30.48M

Controls for ore emplacement

  • Chemical Precipitation And Stratigraphic Control

Comments on the geologic information

  • GYPSUM OCCURS AT OR NEAR CONTACT OF JEFFERSON DOLOMITE AND THREE FORKS SHALE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Deposit size Small
Significant No
Discovery year 1939
Discoverer Horace Selby

Mining district

District name Southern Tendoy Range

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner T. Mc Carthy And J. Brown, Dillon

Reserves and resources

  • Type In-situ
    Estimate year 1967
    Total resources 72000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gypsum-Anhydrite Gyp 82 wt-pct Gypsum-Anhydrite Major 1967

Workings at the site

  • Type of workings Surface/Underground
    Length 10.67M
    Overall depth 2.74M

Comments on the workings information

  • FOURTEEN BULLDOZER CUTS, 9-FT SHAFT, A SHORT ADIT AND A LONGER ADIT MAKE UP DEVELOPMENT WORK. NO PRODUCTION FROM THE PROPERTY (1967)

Comments on development

  • FIVE SAMPLES FROM BULLDOZER CUTS ANALYZED FOR FE2O3, MGO, CAO, CO2, SO3, H2O, CASO4-2H2O, & ACID INSOL ; ECON.COM: DEPOSIT IS 15 MILES FROM RAILROAD (BY ROAD)

Reference information

Bibliographic references

  • Deposit

    JOHNS, W. M., 1967, REPORT ON THE PETERSON, MCCARTHY AND TALENT GYPSUM PROPERTIES, BEAVERHEAD CO. MT: MONT. BUREAU OF MINES AND GEOL. UNPUB. REPORT 21 P AND MAP

  • Deposit

    1967 GEOLMAP MBMG, UNPUBLISHED REPORT

  • Deposit

    REPORT ON THE PETERSON, MCCARTHY AND TALENT GYPSUM PROPERTIES, BEAVERHEAD COUNTY, MT

  • Deposit

    1967 OTHER MBMG UNPUBLISHED REPORT

  • Reserve-Resource

    JOHNS, W. M., 1967, REPORT ON GYPSUM PROPERTIES, BEAVERHEAD CO.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1977 Johns, Willis M.; R. B. Berg U.S. Geological Survey

Beyond USGS

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

External references