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Nuhn Mine

Past Producer in Karnes county in Texas, United States with commodity Uranium
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Production statistics
  19. Reserves and resources
  20. Workings at the site
  21. Links to other databases
  22. Bibliographic references
  23. General comments
  24. Reporter information

Geologic information

Identification information

Deposit ID 10062959
MRDS ID TC36566
Record type Site
Current site name Nuhn Mine
Alternate or previous names Climax, Korzekwa, Lyssy, Gembler

Geographic coordinates

Geographic coordinates: -98.12948, 28.89887 (WGS84)
Elevation 131
Relative position 0.6 MI S45W OF DEWEESVILLE.

Site location context

Political divisions (FIPS codes)

Karnes(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Three Oaks(quadrangle 1:24,000 scale)

Pleasanton(quadrangle 1:100,000 scale)

Crystal City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Atascosa(hydrologic unit)

Nueces(hydrologic accounting unit)

Nueces-Southwestern Texas Coastal(hydrologic subregion)

Texas-Gulf(hydrologic region)

Geographic areas

Country State County
United States Texas Karnes

Commodities

Commodity Importance
Uranium Primary

Materials information

Materials Type of material
Pitchblende Ore
Uraninite Ore

Alteration

  • (Local) Silicification

Mineral occurrence model information

Model code 204
USGS model code 30c
Deposit model name Sandstone U

Host and associated rocks

  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Mudstone
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Deweesville (Stone Switch) Member, Whitsett Formation;Conquista Clay Member, Whitsett Formation
    Rock description Deweesville (Stone Switch) Mbr, Whitsett Formation;Conquista Clay Mbr, Whitsett Formation

Nearby scientific data

(1) -98.12948, 28.89887
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Normal Faulting
Type of structure Local
Structure description Paleochannel

Ore body information

  • General form TABULAR
    Length 1219.2M
    Width 609.6M

Controls for ore emplacement

  • Permeable Deweesville Sandstone Overlying Impermeable Conquista Clay Updip From A Deep, Clay-Filled Channel (This Interpretation Is Contradicted By Conoco Drilling 1979-1980).

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1954
Production years 1959-1961, 1964- ; 1978; 1981-1982

Mining district

District name Karnes Area, Searcy Treno

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner San Antonio Mng. Co. (Climax Molybdenum Co.)
  • Type Owner
    Owner Korzekwa, Lyssy, Gembler

Production statistics

  • Year 1961
    Period 1959-1961
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^0.2% U308
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major U3O8 Ore Uranium Uranium 0wt-pct
  • Year 1964
    Period 1964-
    Material U308
    Accuracy Estimate
    Description Cp_Grade: ^Cog Was 0.12% U308 Average Grade Unknown
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major U3O8 Uranium Uranium 0wt-pct
  • Year 1982
    Period 1981-1982
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^0.063% U308
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major U3O8 Ore Uranium Uranium 0wt-pct

Comments on the production information

  • ITEM 1 IS PRODUCTION THROUGH 4/1961, MAINLY FROM WINDMILL OREBODY. TAILINGS WERE SOLUTION MINED IN 1978.

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Total resources 149000mt ore
    Commodity Subtype Grade units Group Importance Year
    Uranium U3O8 0.053 wt-pct Uranium Major 1980

Comments on the reserve resource information

  • ITEM 1 IS KORZEKWA TRACT ONLY.

Workings at the site

  • Type of workings Surface
    Length 853.44M
    Overall width 365.76M

Comments on the workings information

  • OPEN PIT DEVELOPED ON WINDMILL OREBODY.

Comments on development

  • DISCOVERED DURING JAFFEE-MARIT AND ASSOCIATES AIRBORNE RADIOACTIVITY SURVEY. LEASED AND EXPLORED BY DRILLING AND TRENCHING BY CLIMAX MOLYBDENUM CO. 1955-1957. OPERATED BY SUSQUEHANNA-WESTERN FROM 1964. LEASED BY CONOCO 1971-1976.

Reference information

Bibliographic references

  • Deposit

    BUNKER, C.M., AND MACKALLOR, J.A., 1973, USGS PP 765, 37 P.

  • Deposit

    EARGLE, D.M., ET AL, 1975, SOUTH TEXAS URANIUM DEPOSITS: AAPG BULL. V. 59, P. 766-779.

  • Deposit

    MCCULLOH, R.P., AND ROBERTS, C., 1986, GEOLOGY OF THE NUNH URANIUM OREBODY, JACKSON GROUP, SOUTH TEXAS, URANIUM DISTRICT, IN STAPP, W.L., ED., CONTRIBUTIONS TO THE GEOLOGY OF SOUTH TEXAS: SAN ANTONIO, SOUTH TEXAS GEOLOGICAL SOCIETY, P. 109-125.

  • Other Database

    CIMRI

  • Production

    BUNKER AND MACKALLOR (1973) P. 25-26; MCCULLOH AND ROBERTS (1986) P. 112-113.

  • Reserve-Resource

    MCCULLOH AND ROBERTS (1986) P. 123-125.

General comments

Subject category Comment text
Deposit TWO ORE BODIES ON KORZEKWA PROPERTY (ORCHARD, UNNAMED), ONE ON LYSSY PROPERTY, AND ONE (WINDMILL) THAT LIES PARTLY IN BOTH THE GEMBLER AND LYSSY TRACTS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1993 Long, Keith R. U.S. Geological Survey

Beyond USGS

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

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