Philipsburg

Producer in Granite county in Montana, United States with commodities Silver, Manganese, Lead, Gold, Copper, Iron, Phosphorus-Phosphates, Tungsten, Cobalt, Arsenic, Antimony
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. Economic information about the deposit and operations
  11. Mining district
  12. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10067839
MRDS ID W000703
Record type Site
Current site name Philipsburg
Related records 10294958

Geographic coordinates

Geographic coordinates: -113.25925, 46.35822 (WGS84)

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Philipsburg(quadrangle 1:24,000 scale)

Philipsburg(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Flint-Rock(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(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 Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal Montana

Commodities

Commodity Importance
Silver Primary
Manganese Critical Primary
Lead Secondary
Gold Secondary
Copper Secondary
Iron Secondary
Phosphorus-Phosphates Secondary
Tungsten Critical Tertiary
Cobalt Critical Tertiary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Argentite Ore
Cerargyrite Ore
Chalcopyrite Ore
Chlorargyrite Ore
Galena Ore
Gold Ore
Magnetite Ore
Powellite Ore
Psilomelane Ore
Pyrolusite Ore
Scheelite Ore
Silver Ore
Sphalerite Ore
Tetrahedrite Ore
Tremolite Ore
Barite Gangue
Calcite Gangue
Pyrite Gangue
Quartz Gangue
Rhodochrosite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Philipsburg Batholith
    Rock description Philipsburg Batholith
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Phosphorite
    Rock unit name Phoshoria Formation;Quadrant Formation Amsden Formation Madison Group Jefferson Limestone Maywood Formation;Red Lion Formation Hasmark Formation Silver Hill Formation Flat Head Formation;Belt Series
    Rock description Phoshoria Formation;Quadrant Formation Amsden Formation Madison Group Jefferson Lst Maywood Formation;Red Lion Formation Hasmark Formation Silver Hill Formation Flat Head Formation;Belt Series

Nearby scientific data

(1) -113.25925, 46.35822

Economic information

Comments on the geologic information

  • THE STEEPLY DIPPING QUARTZ VEINS IN THE SEDIMENTARY ROCKS ARE THE LARGEST AND MOST PRODUCTIVE IN A BELT 2000 FT WIDE THAT TRENDS N15-20W AND CROSSES THE CREST OF THE PHILIPSBURG ANTICLINE. THE BEDDING PLANE QUARTZ VEINS IN THE N PART OF THE DISTRICT ARE DIVIDED INTO 2 GROUPS THAT ARE SEPARATED BY 400 FT INTERVAL OF BARREN ROCKS. HASMARK MARBLE, HEADLIGHT BED, LIMESTONE BEDS IN THE MIDDLE OF THE SILVER HILL FM, JEFFERSON MARBLE, AND LIMESTONE BEDS IN THE MAYWOOD FM ARE FAVORABLE FOR THE REPLACEMENT DEPOSITS RICH IN MANGANESE. THE MAGNETITE DEPOSITS CAN BE FOUND IN THE MARBLE OF THE HASMARK FM AND IN THE SW PART OF THE DISTRICT.

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Deposit size Small
Significant No
Production years UNKNOWN

Mining district

District name Philipsburg (Granite-Flint Creek) District

Production statistics

  • Year 1962
    Period 1904-1962
    Material PB
    Description Cp_Grade: ^90% Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 90wt-pct

Comments on the production information

  • AMOUNT OF PRODUCTION UNKNOWN

Comments on the reserve resource information

  • UNKNOWN; PROBABLY UNIMPORTANT FOR COBALT.

Comments on development

  • THE AG PRODUCTION STARTED WITH THE HOPE MINE. FIRST RECORDED PRODUCTION OF MN WAS IN 1900, BUT THE DEMAND WAS NOT MAJOR UNTIL 1913.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ONLY ONE CO ANALYSIS: CRYPTOMELANE CARRIES 0.08% CO OXIDE; MORE ASSAYS OF MANGANESE OXIDES SHOULD BE MADE FOR COBALT.
Deposit DEPOSITS ARE DIVIDED INTO 5 GROUPS: (1) STEEPLY DIPPING QUARTZ VEINS, (2) QUARTZ VEINS ALONG BEDDING, (3) MANGANESE-RICH REPLACEMENT DEPOSITS, (4) CONTACT METASOMATIC MAGNETITE DEPOSITS, AND (5) SEDIMENTARY PHOSPHATE BEDS. THE STEEPLY DIPPING QUARTZ VEINS ARE FISSURE VEINS WHICH CUT BOTH THE BATHOLITH AND SEDIMENTARY ROCKS AND WERE MINED FOR AG, ZN AND PB. THE BEDDING PLANE QUARTZ VEINS ARE COMMON IN THE N PART OF THE DISTRICT. THESE VEINS HAVE YIELDED MUCH HIGH GRADE AG. REPLACEMENT DEPOSITS RICH IN MANGANESE ARE IRREGULARLY DISTRIBUTED IN FAVORABLE HOST BEDS ALONG MANY STEEPLY DIPPING QUARTZ VEINS, THE BORDER OF THE BATHOLITH, AND THE REDEMPTION FAULT. THE PHOSPHATE BEDS CROP OUT ON THE W FLANK OF THE BROAD PHILIPSBURG ANTICLINE. THE CONTACT METASOMATIC IRREGULAR MAGNETITE PODS OCCUR IN MARBLE ALONG THE BORDER OF THE BATHOLITH AND ALONG A PREINTRUSION HIGH-ANGLE REVERSE FAULT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1972 Coury, Anny B. U.S. Geological Survey

Beyond USGS

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