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Jefferson City Mine

Past Producer in Jefferson county in Tennessee, United States with commodities Limestone, General, Stone, Crushed/Broken, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10226093
MRDS ID K001179
MAS/MILS ID 0470890002
Record type Site
Current site name Jefferson City Mine
Alternate or previous names Zinc Mine Works
Related records 10025338

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -83.47879, 36.10009 (WGS84)
Elevation 390
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Tennessee(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Jefferson City(quadrangle 1:24,000 scale)

Morristown(quadrangle 1:100,000 scale)

Johnson City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Holston(hydrologic unit)

French Broad-Holston(hydrologic accounting unit)

Upper Tennessee(hydrologic subregion)

Tennessee(hydrologic region)

Geographic areas

Country State County
United States Tennessee Jefferson

Commodities

Commodity Importance
Limestone, General Tertiary
Stone, Crushed/Broken Tertiary
Zinc Critical Primary

Materials information

Materials Type of material
Calcite Unknown
Chalcopyrite Unknown
Chert Unknown
Dolomite Unknown
Fluorite Unknown
Galena Unknown
Jasper Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Main Entrance (1) Copper Ridge Dolomite
ListMap

Economic information

Ore body information

  • Strike N25E
    Dip 07E
    Thickness 60M
    Length 6000M
    Width 1400M
    Area 80HA
    Depth to top 345M
    Field Value
    Type of Orebody #1 BRECCIA FILL
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 DOLOMITIZATION
    Type of Wallrock Alter. #2 SILICIFICATION
    Type of Wallrock Alter. #3 BLEACHING
    Strike And Dip N25E:07E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 2.5
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 80
    Date of Last Modification 800811

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Both
Deposit size Large
Significant Yes
Discovery year 1949
Mining method Open Stope - Room and Pillar
Year of first production 1956
Milling method Flotation

Mining district

District name Mascot District

Mineral rights holdings

Type of mineral rights Minerals Only
Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Savage Resources Inc.
    Interest 100
    Home office Australia
    Year 1996
    First year 1995
  • Type Owner-Operator
    Owner Union Miniere
    Interest 100
    Year 1995
    Last year 1995

Comments on the ownership information

  • NEW JERSEY ZINC CO. IS A WHOLLY OWNED SUBSIDARY OF GULF AND WESTERN INDUSTRIES. NEW JERSEY ZINC (SUB. OF GULF & WESTERN) SOLD PROPERTY TO INSPIRATION RESOURCES IN 1983 FOR AN UNDICLOSED AMOUNT.

Production statistics

  • Year 1964
    Description Tonnes Of Crude Zinc Ore 450200 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 450200mt
  • Year 1965
    Description Tonnes Of Crude Zinc Ore 440100 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 440100mt
  • Year 1966
    Description Tonnes Of Crude Zinc Ore 329400 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 329400mt
  • Year 1967
    Description Tonnes Of Crude Zinc Ore 409600 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 409600mt
  • Year 1968
    Description Tonnes Of Crude Zinc Ore 422100 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 422100mt
  • Year 1969
    Description Tonnes Of Crude Zinc Ore 419600 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 419600mt
  • Year 1970
    Description Tonnes Of Crude Zinc Ore 420900 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 420900mt
  • Year 1971
    Description Tonnes Of Crude Zinc Ore 404800 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 404800mt
  • Year 1972
    Description Tonnes Of Crude Zinc Ore 423100 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 423100mt
  • Year 1973
    Description Tonnes Of Crude Zinc Ore 399000 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 399000mt
  • Year 1974
    Description Tonnes Of Crude Zinc Ore 329700 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 329700mt
  • Year 1975
    Description Tonnes Of Crude Zinc Ore 374300 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 374300mt
  • Year 1976
    Description Tonnes Of Crude Zinc Ore 398700 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 398700mt
  • Year 1977
    Description Tonnes Of Crude Zinc Ore 334100 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 334100mt
  • Year 1978
    Description Tonnes Of Crude Ore Mined 415000 Mt Ore/Year
  • Year 1979
    Description Tonnes Of Crude Ore Mined 412000 Mt Ore/Year
  • Year 1980
    Description Tonnes Of Crude Ore Mined 436000 Mt Ore/Year
  • Year 1981
    Description Tonnes Of Crude Ore Mined 545000 Mt Ore/Year
  • Year 1982
    Description Mine Closed Early 1982
  • Year 1995
    Description Ore Milled 385028 Mt

Comments on the production information

  • COUNTRY ROCK IS CACO3;SO 100% OF MATERIAL IS MARKETABLE
  • PRODUCTION IS ONGOING. MINE PERMANENTLY CLOSED IN EARLY 1982 - RESERVES EXHAUSTED.

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Indicated 1934000mt ore
    Demonstrated 1934000mt ore
    Total resources 1934000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 2.8 wt-pct Zinc Major 1976
  • Type In-situ
    Estimate year 1997
    Demonstrated 140000mt ore
    Total resources 140000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 2.9 wt-pct Zinc Major 1997

Comments on the reserve resource information

  • RESERVES AT 90 AND 75% PROBABILITY LEVELS ARE CALCULATED FROM RESERVE RECORD 1 BY SUBTRACTING OUT SUBSEQUENT MINE PRODUCTION UP TO OCTOBER 1, 1978, AND BY MAKING ADJUSTMENT FOR MINING EXTRACTION RATE (95%) AND GRADE REDUCTION OF 30 % DUE TO DILUTION. RESERVES AT 50% AND LOWER PROBABILITY LEVELS ARE TWICE THE 75% LEVEL QUANTITY, ROUNDED TO 3 SIGNIFICANT FIGURES. RECOVERABLE GRADE IS 3.0%, INSITU GRADE 4.3 PERCENT. BLENDED GRADES GIVEN IN FEED DATA SETS.

Workings at the site

  • Type of workings Underground
    Length 8000M
    Overall depth 384M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method ROOM AND PILLAR 10-34
    Percent Waste Rock 0
    Percent Recovery 95
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    Length of Inclines (m) 600
    Slope of Inclines 7
    Number of Inclines 1
    Avg. Length of Adits (m) 0
    1st Condition of Workings OPEN
    Capacity 1360
    Capacity Units MT ORE/DAY
    Unit Production Cost 10.73
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1978
  • Type of workings Underground
    Length 8000M
    Overall depth 384M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Mining Method ROOM AND PILLAR 10-34
    Percent Waste Rock 0
    Percent Recovery 95
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    Length of Inclines (m) 600
    Slope of Inclines 7
    Number of Inclines 1
    Avg. Length of Adits (m) 0
    1st Condition of Workings OPEN
    Capacity 272
    Capacity Units MT ORE/DAY
    Unit Production Cost 13.41
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1978

Comments on other economic factors

  • ZINC CONCENTRATE IS NOW BEING STOCKPILED AT THE MILL. WHEN THE NEW CLARKSVILLE, TENNESSEE, SMELTER OPENS LATER THIS YEAR, THE CONCENTRATE WILL BE TRUCKED TO KNOXVILLE AND BARGED DOWN THE TENNESSEE RIVER TO CLARKSVILLE.

Reference information

Bibliographic references

  • Production

    HAYES, A.L., AND R.E. DAUGHERTY. THE JEFFERSON CITH FLOTA-

  • Production

    TION MILL. CHAPTER IN MILLING METHODS IN THE AMERICAS,

  • Production

    EDITED BY N. ARBITER. GORDON AND BREACH SCIENCE PUB-

  • Production

    LISHERS, 1964, PP. 415-447.

  • Reserve-Resource

    GULF AND WESTERN INDUSTRIES, INC. PROSPECTUS, DATED DECEM-

  • Reserve-Resource

    BER 20, 1976, P. 36.

  • Deposit

    SAVAGE QUARTERLY REPORT=CLOSURE DUE TO EXHAUSTED RESERVES

  • Deposit

    10/30/96

  • Deposit

    1981 MSHA LIST

  • Deposit

    RCF & CMS LISTS 10/81

General comments

Subject category Comment text
Deposit THE FOLLOWING COMMENTS HAVE BEEN ENTERED BY E.F.O.C.,ON 10/25/78:1-5,D1-8,I1-12,Q1-7,T1-4,F,O,&U1-2. THE STONE BYPRODUCT IS LIMESTONE, WHICH IS SOLD AS AGRICULTURAL LIMESTONE, SAND, AND CRUSHED ROCK. PROPERTY UPDATED SEP 1987.

Reporter information

Type Date Name Affiliation Comment
Reporter 30-OCT-97 Jah / Tad / Dw 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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