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C-15

Occurrence in Stonewall 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 10022126
MRDS ID DE01955
Record type Site
Current site name C-15

Geographic coordinates

Geographic coordinates: -100.04316, 33.39319 (WGS84)
Elevation 453
Location accuracy 100(meters)
Relative position GO 15 MI NW OF KNOX CITY ON TEXAS HWY. 222 (OR 143) TO SW SIDE OF BUZZARD PEAK. TURN S. ON MAIN WINDING ROAD FOR ABOUT 5.5 MI TO FORK IN ROAD. GO SW FOR ABOUT 0.8 MI. TURN S. ON UNIMPROVED ROAD, STAYING TO RIGHT AT SEVERAL FORKS, AND GO ABOUT 3 MI TO WHERE ROAD TURNS E. ON SW SIDE OF ROAD. NEAR TURN IS WHERE CORE HOLE C-15 WAS DRILLED IN DEC. 1968, AT ELEVATION 1535 FT, TO 59 FT DEEP. A GREEN SHALE AT 48.5-50.8 FT ASSAYED AT 0.1-0.28% CU. THE WELL SPUDDED IN THE LOWER FLOWERPOT SHALE AND ENCOUNTERED THE TOP OF THE SAN ANGELO SANDSTONE AT 29 FT DEEP (EL. 1506 FT). GALLOWAY (1970, P. 54, FIGS. 3, 6) PLACED THE COPPER-SHALE IN THE UPPER CHOZA. STROUD AND OTHERS (1970, P. 18-19, 27-28) AND SMITH (1974, P. 66, PL. IV, LOC. 28) PLACED THE COPPER-SHALE IN THE LOWER SAN ANGELO FORMATION, ZONE C, OR BUZZARD PEAK MEMBER.

Site location context

Political divisions (FIPS codes)

Stonewall(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 Stonewall

Public Land Survey System information

Meridian Township Range Section Fraction State
262 Texas

Comments on the location information

  • HOUSTON AND TEXAS CENTRAL RAILROAD COMPANY BLOCK F ON 6666 RANCH. STROUD AND OTHERS (1970, P. 81) GAVE SEC. 261, BUT IT IS IN SEC. 262 ON THEIR MAP (P. 28, FIG. 11). ELEVATION GIVEN ABOVE IS ON COPPER SHALE IN CORE HOLE C-15. SURFACE ELEVATION IS 1535 WHERE WELL SPUDDED IN.

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcocite Ore
Malachite Ore
Shale Gangue

Analytical data

Result 0.1-0.28% CU, FROM 48.5 TO 50 FT DEEP

Host and associated rocks

  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name San Angelo Formation
    Rock description San Angelo Formation
    Stratigraphic age (youngest) Middle Permian
    Stratigraphic age (youngest) Middle Permian
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name San Angelo Formation (Zone C Of Lower San Angelo)
    Rock description San Angelo Formation (Zone C Of Lower San Angelo)

Nearby scientific data

(1) Clear Fork Group
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Gentle W. Dip About 30 Ft/Mi Off Bend Arch

Ore body information

  • Name UNNAMED
    General form LENTICULAR
    Strike N-S
    Dip 30 FT/MI W.
    Thickness 0.46M
    Depth to top 14.78M
    Depth to bottom 15.24M

Controls for ore emplacement

  • Reducing Environment, Stratigraphic

Comments on the geologic information

  • GEOLOGY BY STORM (1929), PATTON (1930), BARNES (1967), AND SMITH (1974, PL. IV).; HR.AGE.MV: GUADALUPIAN

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, Core Hole

Mining district

District name North Croton Creek

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

  • THIS COPPER-SHALE COULD BE WIDESPREAD AT BASE OF SAN ANGELO FORMATION, BUT THE SHALE COULD BE LENTICULAR.

Workings at the site

  • Type of workings Underground
    Name of workings CORE HOLE C-15, U.S. BUREAU OF MINES
    Area 0.405HA

Comments on development

  • DRILL HOLE C-15, U.S. BUREAU OF MINES

Reference information

Bibliographic references

  • Deposit

    STROUD, R.B., MCMAHAN, A.B., STROUP, R.K., AND HIBPSHMAN, M.H., 1970, U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 7422, 103 P. (P. 18-19, 27-28, 81).

  • Deposit

    STORM, L.W., COMPILER, 1929, GEOLOGIC MAP OF STONEWALL COUNTY, TEXAS: TEXAS BUREAU OF ECONOMIC GEOLOGY, SCALE 1:48,000.

  • Deposit

    SMITH, G.E., 1974, TEXAS BUREAU OF ECONOMIC GEOLOGY, REPORT OF INVESTIGATIONS 80, 84 P. (P. 66, PL. IV, LOC. 28).

  • Deposit

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

  • Deposit

    PATTON, L.T., 1930, TEXAS BUREAU OF ECONOMIC GEOLOGY, BULLETIN 3027, 77 P.

  • Deposit

    GALLOWAY, W.E., 1970, TEXAS BUREAU OF ECONOMIC GEOLOGY, OPEN FILE REPORT 1970-6, 115 P. (P. 54, FIGS. 3, 6)

General comments

Subject category Comment text
Deposit ZONE C OF STROUD AND OTHERS (1970) AND BUZZARD PEAK MEMBER OF SAN ANGELO FORMATION OF SMITH (1974).
Deposit CORE C-15. THE COPPER COULD OCCUR OVER A WIDE AREA, BUT THE BEDS COULD BE DIFFERENT FROM PLACE TO PLACE, EVEN THOUGH THEY ARE CALLED ZONE C OF LOWER SAN ANGELO.
Deposit STROUD AND OTHERS (1970, P. 18-19, 27-28, 81, FIG. 11), GALLOWAY (1970, P. 54, FIGS. 3, 6), AND SMITH (1974, P. 66, PL. IV, LOC. 28) GIVE DETAILS.

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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