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Eureka Mine

Past Producer in Polk county in Tennessee, United States with commodities Copper, Gold, Sulfur-Pyrite, Lead, Silver, Sulfur, 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. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10300155
MRDS ID K001182
MAS/MILS ID 0471390002
Record type Site
Current site name Eureka Mine
Alternate or previous names Isabella Mine
Related records 10106801

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -84.36572, 35.03231 (WGS84)
Elevation 500
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Polk(county)

Tennessee(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Isabella(quadrangle 1:24,000 scale)

Cleveland(quadrangle 1:100,000 scale)

Chattanooga(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Ocoee(hydrologic unit)

Middle Tennessee-Hiwassee(hydrologic accounting unit)

Middle Tennessee-Hiwassee(hydrologic subregion)

Tennessee(hydrologic region)

Geographic areas

Country State County
United States Tennessee Polk

Commodities

Commodity Importance
Copper Primary
Gold Tertiary
Sulfur-Pyrite Secondary
Lead Tertiary
Silver Tertiary
Sulfur Secondary
Zinc Critical Primary

Materials information

Materials Type of material
Actinolite Unknown
Calcite Unknown
Chalcopyrite Unknown
Diopside Unknown
Galena Unknown
Gold Unknown
Hedenbergite Unknown
Magnetite Unknown
Pyrite Unknown
Pyrrhotite Unknown
Quartz Unknown
Silver Unknown
Sphalerite Unknown
Tremolite Unknown

Economic information

Ore body information

  • Strike N30E
    Dip 45E
    Thickness 53M
    Length 221M
    Width 151M
    Area 10HA
    Depth to top 160M
    Field Value
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 LENTICULAR
    Shape of Orebody #3 IRREGULAR
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control FAULTING
    Secondary Ore Control FOLDING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Type of Wallrock Alter. #2 OTHER
    Strike And Dip N30E:45E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 10
    Date of Last Modification 830510

Comments on the geologic information

  • GENERAL METAMOPHIC ROCK TYPE CONSIST OF INTERBEDDED METAMORPHOSED GRAYWACKE & GRAYWACKE CONGLOMERATE. AND MICA SCHIST. ADDITIONAL WALLROCK ALTERATION IS RETROGRADE METAMORPHISM.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Both
Significant No
Discovery year 1853
Mining method Caving Methods - Sublevel Caving
Year of first production 1925
Milling method Flotation

Mining district

District name Ducktown District

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Tennessee Chemical Corp
    ID 4000709
    Interest 100
    Home office Georgia
    Year 1982

Comments on the ownership information

  • GENERAL METAMOPHIC ROCK TYPE CONSIST OF INTERBEDDED METAMORPHOSED GRAYWACKE & GRAYWACKE CONGLOMERATE. AND MICA SCHIST. TENNESSEE CHEMICAL CORP. ADDRESS: 3475 LENOX RD N.E, SUITE 670, ATLANTA, GA 30326 TENNESSEE CHEMICAL PURCHASED ALL PROPERTIES IN THE COPPERHILL DISTRICT FROM CITIES SERVICE CORP IN SEPT 1982 FOR AN UNDISCLOSED AMOUNT.

Comments on the production information

  • PRODUCTION IS ONGOING

Reserves and resources

  • Type In-situ
    Estimate year 0
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 1.2 wt-pct Zinc Major 0
    Copper Cu 0.7 wt-pct Copper Major 0
    Iron FeS2 20 wt-pct Iron 0

Comments on the reserve resource information

  • 86 BROOK-HUNT & ILZSG DATA
  • M9C4 = M1C1. RESOURCES FROM THIS DEPOSIT NOT INCLUDED IN OFFICIAL DISTRICT RESERVES.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method SUBLEVEL 10-43
    Swell Factor .99
    Percent Waste Rock 50
    Percent Recovery 50
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    1st Condition of Workings OPEN
    Capacity 137
    Capacity Units MT ORE/DAY
    Unit Production Cost 7.02
    Units of Production $/MT ORE
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1977

Comments on other economic factors

  • MINED WAS ORIGINALLY MINED BY OPEN SUBLEVEL STOPING METHODS. PRODUCTION SINCE 1969 HAS BEEN BY PILLAR ROBBING.
  • TRANSPORTATION/ORE FROM THIS DEPOSIT IS HAULED BY THE COPPER COMPANY RAILROAD TO THE LONDON FLOTATION PLANT FOR BENEFICIATION. THE COPPER AND IRON CONCENTRATES PRODUCED AT THE MILL ARE THEN HAULED BY THE RAILROAD TO THE COPPERHILL SMELTER. THE ZINC CONCENTRATE IS SOLD AND SHIPPED TO OFF SITE SMELTERS DIRECTLY FROM THE MILL.
  • BENEFICIATION/SULFUR IS RECOVERED IN THE SMELTING PROCESS AS SULFUR DIOXIDE GAS AND IS USED IN MAKING SULFURIC ACID. GOLD AND SILVER ARE RECOVERED AS BY-PRODUCT FROM THE ELECTROLYTIC REFINING OF BLISTER COPPER PRODUCED IN THE SMELTING PROCESS AND THE PIERCE-SMITH CONVERTER.

Reference information

Bibliographic references

  • Reserve-Resource

    MAGEEE, MAURICE. GEOLOGY AND ORE DEPOSITS OF THE DUCKTOWN

  • Reserve-Resource

    DISTRICT, TENNESSEE IN ORE DEPOSITS OF THE UNITED

  • Reserve-Resource

    STATES, 1933-1967. AM. INST. MINING, METALL. AND

  • Reserve-Resource

    PETROLEUM ENGINEERS, INC., V. 1, 1968, PP. 207-241.

  • Reserve-Resource

    ASHLEY, G.H. MINERAL RESOURCES OF TENNESSEE. TENN. GEOL.

  • Reserve-Resource

    SURV., NASHVILLE, TENN., 1910, 65 PP.

  • Reserve-Resource

    FLOYD, R.J. TENNESSEE ROCK AND MINERAL RESOURCES. STATE OF

  • Reserve-Resource

    TENN. DEPT. OF CONSERVATION, DIV. OF GEOL., BULL. 66,

  • Reserve-Resource

    NASHVILLE, TENN., 1965, PP. 47-50.

  • Reserve-Resource

    MCMAHON, A.D. COPPER. A MATERIALS SURVEY. BUMINES IC 8225,

  • Reserve-Resource

    1965, P. 54.

  • Deposit

    BEALL, J. W., 1973, COPPER IN THE U. S. -- A POSITION SURVEY

  • Deposit

    MINING ENGINEERING: SOC. MINING ENGINEERS, V. 25, NO. 4, P.

  • Deposit

    EMMONS, W. H., AND LANEY, F. B., 1926, GEOLOGY AND ORE DEPOS

  • Deposit

    THE DUCKTOWN MINING DISTRICT, TENNESSEE: U. S. GEOLOGICAL SURVEY

  • Deposit

    PAPER 139, PP. 30-32 & 94-97.

  • Deposit

    HARDEMAN, W. D., 1970, ZINC AND COPPER MINES IN TENNESSEE: U

  • Deposit

    BUREAU OF MINES OPEN-FILE REPORT, P. 25.

  • Deposit

    KERR, J. R., RAND, L. H., AND VALLELY, J. L., 1965, THE SULF

  • Deposit

    SULFURIC ACID INDUSTRY OF EASTERN UNITED STATES: U. S. BUR.

  • Deposit

    INF. CIRC. 8255, P. 74-75.

  • Deposit

    MAGEE, MAURICE, 1968, GEOLOGY AND ORE DEPOSITS OF THE DUCKTO

  • Deposit

    DISTRICT, TENNESSEE IN ORE DEPOSITS OF THE UNITED STATES, 19

  • Deposit

    1967: AM. INST. MINING, METALL., AND PETROLEUM ENGINEERS, V.

  • Deposit

    P. 207-241.

  • Deposit

    MAHER, S. W., 1966, THE COPPER-SULFURIC ACID INDUSTRY IN TEN

  • Deposit

    TENNESSEE DIV. GEOLOGY INF. CIRC. 14, 28 P.

  • Deposit

    ROSS, C. S., 1935, ORIGIN OF THE COPPER DEPOSITS OF THE DUCK

  • Deposit

    TYPE IN THE SOUTHERN APPALACHIAN REGION: U. S. GEOLOGICAL SURVEY

  • Deposit

    PAPER 179, PP. 94-97.

  • Deposit

    SAFFORD, J. M., 1869, GEOLOGY OF TENNESSEE: NASHVILLE, S. J.

  • Deposit

    MERCER, P. 470-482.

  • Deposit

    TENNESSEE COPPER COMPANY DIVISION, 1966, THE TCC STORY: COPP

  • Deposit

    TENN., 3RD ED., PP. 6, 11 & 13.

  • Deposit

    U. S. BUREAU OF MINES. ANNUAL STATISTICS ON THE MINERAL IND

  • Deposit

    OF TENESSEE. MINERAL INDUSTRY SURVEYS 1969-1976.

General comments

Subject category Comment text
Deposit CONTRACT NO. G0166176 ENTERED 1977/REVISED BY T. Q. LYDAY 19 IRON ORE OCCURS AS IRON SULFIDE AND MAGNETITE. SULFUR OCCURS IN SULFIDE MINERALS. THE DEPOSIT REVIEWED 11/78 BY SPANGENBERG.

Reporter information

Type Date Name Affiliation Comment
Reporter 09-AUG-93 Eastern Field Operations Center (EFOC) U.S. Bureau of Mines

Beyond USGS

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

External references

Maps centered on this site