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Emery Mine

Past Producer in Powell county in Montana, United States with commodities Gold, Silver, Lead, Zinc, Copper, Arsenic, Antimony
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Reserves and resources
  21. Workings at the site
  22. Links to other databases
  23. Bibliographic references
  24. General comments
  25. Reporter information

Geologic information

Identification information

Deposit ID 10071363
MRDS ID W014704
Record type Site
Current site name Emery Mine
Alternate or previous names Carbonate Hill Mine, Carbonate Extension

Geographic coordinates

Geographic coordinates: -112.58006, 46.37712 (WGS84)
Elevation 1926
Relative position ABOUT 10 KM EAST OF DEER LODGE, MONTANA

Site location context

Political divisions (FIPS codes)

Powell(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Baggs Creek(quadrangle 1:24,000 scale)

Butte North(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)

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 Powell

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 007N 008W 10,11 SE OF NE (10); W2 (11) Montana

Comments on the location information

  • UTM LOCATION OF EMERY SHAFT ; INFO FROM LAND.ST :(1959

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Primary
Zinc Critical Primary
Copper Secondary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Comments on the commodity information

  • VEIN UNIFORM

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Tetrahedrite Ore
Boulangerite Ore
Ankerite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Argillization, Oxidation, Silicification, Pyritization

Analytical data

Result ASSAY $32-35/TON
Result ASSAY 1923 (FROM GLEANINGS OF FORMER ORE) .28-.78 OZ/TON AU, 15-38 OZ/TON AG, 3-12% PB, 5-13% ZN, 7-10% AS

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Elkhorn Mountain Volcanics
    Rock description Elkhorn Mountain Volcanics
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -112.58006, 46.37712
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith
Type of structure Local
Structure description West-Plunging Syncline, Northeast Northwest-Trending Fracture System

Ore body information

  • General form TABULAR
    Strike N 35 E
    Dip 20 TO 35 NW
    Length 400M
    Width 1M
    Depth to top 0M

Controls for ore emplacement

  • Northeast-Trending Reverse Fault, Post-Mineralization Black Rock Fault Strikes West, Dips North And Cuts Off South End Of Vein, The Emery Lode Is Off Set 500-1000 Ft In A Horizontal Plane.

Comments on the geologic information

  • LOW ANGLE REVERSE FAULTS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant Yes
Discovery year 1888
Discoverer John Renault

Mining district

District name Emery (Zosell) District

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Emery Consolidated Mining Corp.

Production statistics

  • Year 1966
    Period 1891-1966
    Material ore
    Ore mined 53550mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor CU Copper Copper 12065.55mt
    Major ZN Zinc Zinc 337926.31mt
    Major PB Lead Lead 1342633.41mt
    Major AG Silver Silver 30636928.78g
    Major AU Gold Gold 870897.46g

Comments on the production information

  • 1949 PRODUCTION FROM CARBONATE EXTENSION.

Reserves and resources

  • Type In-situ
    Estimate year 1977
    Inferred 20699000mt ore
    Total resources 31000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold 26 g/mt Gold Major 1977
    Silver 1355 g/mt Silver Major 1977
    Lead 11.5 wt-pct Lead Major 1977
    Zinc 6.9 wt-pct Zinc Major 1977

Comments on the reserve resource information

  • THE INTERSECTION OF THE SWAN-SABBATH DAY VEIN WITH THE BLUE EYED MAGGIE OR EMERY VEIN MIGHT BE INVESTIGATED.

Workings at the site

  • Type of workings Underground
    Length 3000M
    Overall depth 250M

Comments on the workings information

  • MINE DEVELOPED BY A 450 FT. TWO COMPARTMENT VERTICAL SHAFT, TWO INCLINED SHAFTS, AND AT LEAST 10 LEVELS FOR A DISTANCE OF ABOUT 1400 FT DOWNDIP

Comments on development

  • ECON.COM: VEIN RANGES FROM 0.15 TO 2 FT. IN WIDTH; AVERAGE WIDTH ABOUT 0.6 FT.

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 98, P. 22, 23, 58.

  • Deposit

    MBMG MEM 34, P. 29.

  • Deposit

    USGS BULL 842, P. 274-77. P. 73-4

  • Deposit

    USGS PP 57, P. 110-11.

  • Production

    MBMG BULL 98, P. 58 , 60.

General comments

Subject category Comment text
Deposit VEIN WIDENS AS IT FLATTENS. IT HAS MANY SMALL RUDELYPARRALEL FRACTURES THAT HAS BEEN FILLED WITH ORE MINERALS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1976 Krohn, Douglas H. U.S. Geological Survey
Updater 01-AUG-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.

External references

Maps centered on this site