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  3. Mineral Resource Data System (MRDS)

Site A-4a

Occurrence in King county in Texas, United States with commodity Copper
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10022097
MRDS ID DE01919
Record type Site
Current site name Site A-4a

Geographic coordinates

Geographic coordinates: -100.01844, 33.44485 (WGS84)
Elevation 500
Location accuracy 100(meters)
Relative position SITES ARE ABOUT 1.5 MI E. OF HUMP TRIANGULATION STATION. GO NW OF KNOX CITY ON TEXAS HWY. 143 FOR 15 MI TO BUZZARD PEAK. GO S. ON WINDING ROAD, BEGINNING ON SW SIDE OF BUZZARD PEAK, FOR ABOUT 5 MI TO UNIMPROVED ROAD ON E. GO 0.65 MI NE TO JUNCTION. TURN E. 0.25 MI. POSSIBLY THERE IS A TRAIL FOR 0.65 MI SE TO DRILL SITE.

Site location context

Political divisions (FIPS codes)

King(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Kiowa Peak NE(quadrangle 1:24,000 scale)

Aspermont(quadrangle 1:100,000 scale)

Lubbock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Brazos-Millers(hydrologic unit)

Middle Brazos-Clear Fork(hydrologic accounting unit)

Middle Brazos(hydrologic subregion)

Texas-Gulf(hydrologic region)

Geographic areas

Country State County
United States Texas King

Public Land Survey System information

Meridian Township Range Section Fraction State
83 Texas

Comments on the location information

  • BLOCK 13, HOUSTON AND TEXAS CENTRAL RAILROAD CO. SURVEY. (THE BLOCK AND SECTIONS ARE ORIENTED NW-SE. THE DESCRIPTION IS GIVEN AS IF THE SECTION WERE ORIENTED N-S.) SITE 62 IS ABOUT 1600 FT NNE OF DRILL SITE, AT ABOUT EL. 1570 FT. SITE 66 IS ABOUT 1200 FT SSW OF DRILL SITE, AT ABOUT EL. 1560 FT. SITES 75-76 ARE AT DRILL SITE, EL. 1640 FT, WITH COPPER IN A 5-FT SECTION. SITES 77-78 ARE ABOUT 500-750 FT SW OF DRILL SITE, AT APPROXIMATELY 1640 FT ELEVATION. SMITH (1974, P. 68-70) MEASURED 60 FT OF BEDS NEAR A-4A IN MEASURED SECTIONS 3 AND 37. A 14-INCH MALACHITE ZONE WAS 23 FT ABOVE BASE OF SECTION IN FLOWERPOT SHALE IN MEASURED SECTION 3.

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Malachite Ore
Shale Gangue

Analytical data

Result 0.09-0.98% CU AT 55-60.3 FT IN CORE
Result 0.01-0.04% CU AT 77-78.4 FT IN CORE
Result 0.01-0.21% CU AT 164.6-165 FT IN CORE. 0.38% CU IN 8-INCH SHALE, SITE 62 (USBM RAF-27)
Result 1.10% CU IN 8-INCH SHALE, SITE 66 (USBM RAF-31)
Result 0.02-1.75% CU IN 5-FT SECTION, SITES 75-78 (USBM RAF 69-72).

Host and associated rocks

  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name San Angelo Formation (Lower) Top At 119 Ft Deep In Core (El. 1521 Ft)
    Rock description San Angelo Formation (Lower) Top At 119 Ft Deep In Core (El. 1521 Ft)
    Stratigraphic age (youngest) Middle Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Flowerpot Shale (Upper 80 Ft) (3 Zones);;
    Rock description Flowerpot Shale (Upper 80 Ft) (3 Zones);;

Nearby scientific data

(1) Blaine Formation
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Gentle W. Dip Of 30 Ft/Mi Or Less, Off Bend Arch

Ore body information

  • Name UNNAMED
    General form LENTICULAR
    Strike N-S}}}
    Dip 30 FT/MI W. OR LESS}}}
    Thickness 1.52M
    Depth to top 499.87M
    Depth to bottom 481.58M
  • Name UNNAMED
    General form LENTICULAR
    Dip 30 FT/MI W. OR LESS}}}
    Thickness 1.52M
    Depth to top 483.11M
    Depth to bottom 475.95M
  • Name UNNAMED
    General form LENTICULAR
    Dip 30 FT/MI W. OR LESS}}}
    Thickness 0.43M
    Depth to top 476.4M
    Depth to bottom 449.58M
  • Name UNNAMED
    General form LENTICULAR
    Dip 30 FT/MI W. OR LESS}}}
    Thickness 1.52M
    Depth to top 449.7M

Controls for ore emplacement

  • Reducing Environment, Stratigraphic

Comments on the geologic information

  • GEOLOGY BY HUBBARD AND FISCHER (1930), BARNES (1967), AND SMITH (1974, PL. IV).; HR.AGE.MV: GUADALUPIANyy

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1968
Discoverer Stroud And Others

Mining district

District name Hump

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner 6666 Ranch
    Home office Mr. Jay Humphrey, Trustee, Of S.B. And Tom Burnett Estate, 1212 First National Bank, Ft. Worth

Comments on the reserve resource information

  • APPROXIMATELY THREE ZONES OF COPPER MINERALS OCCUR IN THE UPPER 80 FT OF THE FLOWERPOT SHALE. THE ZONES ARE 5 FT OR LESS IN THICKNESS.

Workings at the site

  • Type of workings Surface
    Name of workings OUTCROP AND CORE HOLE
    Area 259.008HA

Comments on the workings information

  • OUTCROP

Reference information

Bibliographic references

  • Deposit

    HUBBARD, W.E., AND FISCHER, R.W., COMPILERS, 1930, GEOLOGIC MAP OF KING COUNTY, TEXAS: TEXAS BUREAU OF ECONOMIC GEOLOGY, SCALE 1:48,000.

  • Deposit

    BARNES, V.E., COMPILER, 1967, GEOLOGIC ATLAS OF TEXAS - LUBBOCK SHEET, SCALE 1:250,000.

  • Deposit

    STROUD, R.B., MCMAHAN, A.B., STROUP, R.K., AND HIBPSHMAN, M.A., 1970, U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 7422, 103 P. (P. 39-40, 49-51).

  • Deposit

    SMITH, G.E., 1974, TEXAS BUREAU OF ECONOMIC GEOLOGY, REPORT OF INVESTIGATIONS 80, 84 P. (P. 66, 68-70, PL. IV).

  • Deposit

    GALLOWAY, W.E., 1970, TEXAS BUREAU OF ECONOMIC GEOLOGY, OPEN FILE REPORT 1970-6, 115 P. (P. 30)

General comments

Subject category Comment text
Deposit APPARENTLY THERE ARE THREE ZONES OF COPPER IN THE UPPER 80 FT OF THE FLOWERPOT AND ONE ZONE IN THE LOWER SAN ANGELO.
Deposit STROUD AND OTHERS (1970, P. 49-51) IS REFERENCE FOR CORE HOLE A-4A, DRILLED DEC. 1968; EL. 1640 FT; TD, 171 FT; CU AT TOP, 55-60.3 FT BELOW TOP, 77-78.4 FT BELOW TOP, AND 164.6-165 FT BELOW TOP, IN UPPER FLOWERPOT AND LOWER SAN ANGELO. SAMPLES 75-78 WERE COLLECTED AT SURFACE, EL. 1640 FT (STROUD AND OTHERS, 1970, P. 40). SAMPLES 62, 66 WERE COLLECTED AT SURFACE, EL. 1560-1570 (STROUD AND OTHERS, 1970, P. 39-40), ALL IN SEC. 83.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1993 Fay, Robert O. Oklahoma Geological Survey

Beyond USGS

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

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