Anderson Mine

Producer in Powell county in Montana, United States with commodities Phosphorus-Phosphates, Fluorine-Fluorite
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. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10107296
MRDS ID W013399
Record type Site
Current site name Anderson Mine
Alternate or previous names Brock Mine, Warm Spring Mine, Anderson Opencut Mine
Related records 10245498

Geographic coordinates

Geographic coordinates: -112.83702, 46.64017 (WGS84)
Elevation 1430
Relative position ABOUT 14.0 KM NNW OF GARRISON.

Site location context

Political divisions (FIPS codes)

Powell(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Windy Rock(quadrangle 1:24,000 scale)

Elliston(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Montana Powell

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 010N 010W 02,03,10,11 Montana

Comments on the location information

  • PHOSPHATE MINING IS DONE IN SEVERAL SECTIONS TO THE EAST OF THE BROCK MINE

Commodities

Commodity Importance
Phosphorus-Phosphates Primary
Fluorine-Fluorite Critical Tertiary

Materials information

Materials Type of material
Fluorite Ore

Analytical data

Result 18-31% P2O5 GRADE
Result 3.8% F

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Phosphorite
    Rock unit name Phosphoria Formation (Retort Member)
    Rock description Phosphoria Formation (Retort Member)
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -112.83702, 46.64017

Economic information

Geologic structures

Type of structure Local
Structure description West Limb Of Garrison Anticline

Ore body information

  • General form BLANKET
    Strike N30W
    Dip 30SW
    Thickness 1.2M

Controls for ore emplacement

  • Bedded Deposit

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Deposit size Medium
Significant No
Year of first production 1929

Mining district

District name Garrison District

Ownership information

  • Type Owner-Operator
    Owner Cominco American, Inc., Garrison, Mt.

Production statistics

  • Year 1961
    Period 1955-1961
    Material P
    Accuracy Estimate
    Description Cp_Grade: ^Anderson Opencut 31.5% P2o5.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Phosphorus-Phosphates Phosphorus 32wt-pct

Workings at the site

  • Type of workings Underground
    Length 2743.2M
    Overall depth 457.2M

Comments on the workings information

  • THE ANDERSON USED A HOIST THROUGH A VERTICAL SHAFT. THE BROCK MINE USED A TRAM THROUGH AN ADIT.

Comments on development

  • HAS JOINED WITH WARM SPRING MINE IN T10N, R09W, SEC 13; T10N, R09W, SEC 19.

Reference information

Bibliographic references

  • Deposit

    USBM RI 6611, P. 20-30.

  • Deposit

    MBMG SP 25, P. 6.

  • Deposit

    MBMG BULL 72, P. 31.

  • Deposit

    MBMG BULL 115, P. 25.

  • Deposit

    1965 GEOCHEM USBM PUBLISHED

  • Deposit

    SEE GENERAL REFERENCES

  • Production

    MBMG BULL 115, P. 25. USBM RI 6611, P. 23.

General comments

Subject category Comment text
Deposit First Production Year: 1929 (FOR ADJACENT ANDERSON MINE WHICH IS NOW INACTIVE)
Deposit THE ANDERSON MINE HAS MINED THE RETORT PHOSPHATE MEMBER. THE MINING SECTION AVERAGES ABOUT 3.5-4.0 FT OF OOLITIC PHOSPHORITE SEPARATED BY DISTINCT PARTINGS AND THIN SEAMS OF CLAY.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1976 Berg, Richard B. (Krohn, D. H.) U.S. Geological Survey
Updater 01-OCT-1982 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.

External references