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The Hogback Syncline

Prospect in Beaverhead county in Montana, United States with commodities Chromium, Fluorine-Fluorite, Nickel, Phosphorus-Phosphates, REE, Uranium, Vanadium
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mineral rights holdings
  11. Land status
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10293975
MAS/MILS ID 0300010535
Record type Site
Current site name The Hogback Syncline

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -112.57778, 45.4216 (WGS84)
Elevation 1646
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Block Mountain(quadrangle 1:24,000 scale)

Dillon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Hole(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management MT)

Bureau of Land Management MT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 005 S 008 W 10 Montana

Commodities

Commodity Importance
Chromium Critical Tertiary
Fluorine-Fluorite Critical Tertiary
Nickel Critical Tertiary
Phosphorus-Phosphates Primary
REE Critical Tertiary
Uranium Tertiary
Vanadium Critical Tertiary

Nearby scientific data

Ore Body (1) Frontier and Blackleaf Formations
ListMap

Economic information

Ore body information

  • Thickness 3.7M
    Depth to top 5M
    Field Value
    MAS Matrix # 1
    MAS Column # 3
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316
  • Thickness 0.9M
    Depth to top 5M
    Field Value
    MAS Matrix # 2
    MAS Column # 3
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316
  • Thickness 1M
    Depth to top 5M
    Field Value
    MAS Matrix # 3
    MAS Column # 3
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316

Economic information about the deposit and operations

Development status Prospect
Commodity type Both
Significant No

Mineral rights holdings

Type of mineral rights Federal Lease

Land status

Ownership category BLM Administrative Area

Reserves and resources

  • Type In-situ
    Estimate year 1970
    Inferred 7257400mt ore
    Total resources 11339000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 20 wt-pct Phosphorus Major 1970
    Uranium U 0.007 wt-pct Uranium Trace 1970
    Fluorine-Fluorite F 2 wt-pct Fluorine Trace 1970
  • Type In-situ
    Estimate year 1970
    Inferred 907180mt ore
    Total resources 1360700mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 25 wt-pct Phosphorus Major 1970
    Uranium U 0.007 wt-pct Uranium Trace 1970
    Fluorine-Fluorite F 2.5 wt-pct Fluorine Trace 1970
  • Type In-situ
    Estimate year 1970
    Inferred 907180mt ore
    Total resources 1451400mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 22 wt-pct Phosphorus Major 1970
    Uranium U 0.007 wt-pct Uranium Trace 1970
    Fluorine-Fluorite F 2.2 wt-pct Fluorine Trace 1970

Comments on the reserve resource information

  • M1C3 RETORT MEMBER: Q50; RESOURCE BLOCK ABOVE ENTRY LEVEL, BED AREA 752490 SQUARE METERS, Q25; RESOURCE BLOCK ABOVE FIRST 30M BELOW ENTRY LEVEL, BED AREA 1161250 SQUARE METERS; Q10; RESOURCE BLOCK, TOTAL IN AREA, BED AREA 6688800 SQUARE METERS M2 C3 MEADE PEAK MEMBER: Q50; RESOURCE BLOCK ABOVE ENTRY LEVEL, BED AREA 752490 SQUARE METERS; Q25; RESOURCE BLOCK ABOVE FIRST 30M BELOW ENTRY LEVEL, BED AREA 1161250 SQUARE METERS; Q10; RESOURCE BLOCK, TOTAL IN AREA, BED AREA 6688800 SQUARE METERS M3 C3 SEE Q006-Q010

Reference information

Bibliographic references

  • Reserve-Resource

    SWANSON, ROGER, 1970, MINERAL RESOURCES IN PERMIAN ROCKS OF

  • Reserve-Resource

    SOUTHWEST MONTANA, USGS PROF. PAPER 313-E, P. 661-777

General comments

Subject category Comment text
Deposit THIS RECORD IS FOR A LARGE AREA COVERING THE PHOSPHATE MINERALIZATION OF THE HOGBACK AREA. THUS IT INCLUDES SECS. 3,10,16 T5S R8W; SECS 34,35 T4S R8W DEPOSITS SEQ NO. 0300010421 AND 0300570643 ARE LOCATED IN THIS AREA APATITE OCCURES AS OOLITIC TO PELLETAL GRAINS THAT ARE VERY FINE TO MEDIUM SAND SIZE, NODULES ARE LOCALLY COMMON

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Benjamin U.S. Bureau of Mines

Beyond USGS

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

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