H.N. Johns Prospect

Occurrence in Hancock county in Tennessee, United States with commodities Zinc, Iron, Cadmium
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10025714
MRDS ID K001642
Record type Site
Current site name H.N. Johns Prospect
Related records 10202289

Geographic coordinates

Geographic coordinates: -83.24071, 36.42814 (WGS84)
Relative position 0.8 MILE NW OF FLAT GAP, TENN.

Site location context

Political divisions (FIPS codes)

Hancock(county)

Tennessee(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lee Valley(quadrangle 1:24,000 scale)

Morristown(quadrangle 1:100,000 scale)

Johnson City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Clinch, Tennessee, Virginia(hydrologic unit)

Upper Tennessee(hydrologic accounting unit)

Upper Tennessee(hydrologic subregion)

Tennessee(hydrologic region)

Geographic areas

Country State County
United States Tennessee Hancock

Commodities

Commodity Importance
Zinc Critical Tertiary
Iron Tertiary
Cadmium Tertiary

Materials information

Materials Type of material
Calamine Ore
Greenockite Ore
Pyrite Ore
Smithsonite Ore
Sphalerite Ore
Chert Gangue

Analytical data

Result TENOR OF ZINC ORE ESTIMATED AT MORE THAN 2%. METALLIC ZINC.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Kingsport Formation, Dolomite
    Rock description Kingsport Formation, Dolomite
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Late Ordovician

Nearby scientific data

(1) -83.24071, 36.42814

Economic information

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Breccia Zone

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1916
Discoverer Supposedly American Zinc Company

Mining district

District name Copper Ridge Zinc District

Comments on development

  • PROSPECTING LIMITED TO TWO SMALL CUTS. THE MOST-RECENT PROSPECTING WAS CARRIED ON BY U.S. BUREAU OF MINES IN 1943.

Reference information

Bibliographic references

  • Deposit

    SECRIST, M.H., 1924, ZINC DEPOSITS OF EAST TENNESSEE: TENN. DIV. GEOL., BULL. 31, 165 P.

  • Deposit

    MAHER, S.W., 1958, THE ZINC INDUSTRY OF TENNESSEE: TENN. DIV. GEOL., INF. CIR. NO. 6, 28 P.

  • Deposit

    1924 GEOLMAP SECRIST, M.H., TENN. DIV. GEOL., REPORT

  • Deposit

    1958 COMPILE MAHER, S.W., TENN. DIV. GEOL., REPORT

  • Deposit

    KENT, D.F., MAPS OF THE SHILOH, JOHNS, AND IDOL ZINC PROSPECTS, HAWKINS, HANCOCK, AND GRAINGER COUNTIES, EAST TENNESSEE: USGS STRATEGIC MINERALS INVESTIGATIONS, PRELIMINARY MAPS.

  • Production

    SECRIST, M.H., 1924, TENN. DIV. GEOL. BULL. 31.

General comments

Subject category Comment text
Deposit MINERALIZATION OCCURS IN A 50-FOOT THICK DOLOMITE BED WHICH IS IN THE BASAL KINGSPORT FORMATION. KENT IMPLIES THAT MINERALIZATION IS RELATED TO FAULTING AND BRECCIATION. SPHALERITE OCCURS IN INTERSTICES OF BRECCIA WITH GANGUE DOLOMITE. BRECCIA MATRIX INCLUDES SPHALERITE, DOLOMITE, CHERT, AND SMALL AMOUNT OF PYRITE. MINERALIZATION IS LOCALLY QUITE RICH.PARTLY OXIDIZED SULFIDE ORE IS COMMONLY COATED WITH GREENOCKITE. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1973 Hale, Robin C. U.S. Geological Survey

Beyond USGS

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