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Trap Rock Quarry

Producer in Uvalde county in Texas, United States with commodity Stone, Crushed/Broken
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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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Land status
  11. Ownership information
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10107124
MRDS ID TC36596
Record type Site
Current site name Trap Rock Quarry
Alternate or previous names Knippa
Related records 10226874

Geographic coordinates

Geographic coordinates: -99.65175, 29.29136 (WGS84)
Elevation 274
Relative position 0.8 MI S65W OF KNIPPA.

Site location context

Political divisions (FIPS codes)

Uvalde(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Knippa(quadrangle 1:24,000 scale)

Uvalde(quadrangle 1:100,000 scale)

San Antonio(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Frio(hydrologic unit)

Nueces(hydrologic accounting unit)

Nueces-Southwestern Texas Coastal(hydrologic subregion)

Texas-Gulf(hydrologic region)

Geographic areas

Country State County
United States Texas Uvalde

Comments on the location information

  • 0.8 MI W OF FM 1049 ON US90, S SIDE ON NE SIDE OF HILL.

Commodities

Commodity Importance
Stone, Crushed/Broken Primary

Comments on the commodity information

  • AGGREGATE, ROADBASE, RIPRAP, BALLAST, FILTERSTONE, SURFACE TREATMENT, ETC. ROCK IS TOO JOINTED FOR USE AS DIMENSIONSTONE.

Materials information

Materials Type of material
Basalt Ore

Analytical data

Result SPECIFIC GRAVITY: 3.15
Result WEIGHT: 196 LBS/CU FT
Result WATER ABSORPTION: 0.39 LBS/SQ FT
Result PERCENT OF WEAR: 1.8
Result FRENCH COEFFICIENT OF WEAR: 22.2
Result HARDNESS: 17.5
Result TOUGHNESS: 15
Result GOOD CEMENTING VALUE.

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -99.65175, 29.29136
ListMap

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Southwest Stone Co. (?-?), White Mines (?-?), Vulcan Materials Co. (?- ).

Workings at the site

  • Type of workings Surface
    Length 243.84M
    Overall depth 35.05M
    Overall width 243.84M

Comments on development

  • ECON.COM: CO. ALSO OWNS TWO BASALT MASSES NORTH OF US 90.

Reference information

Bibliographic references

  • Deposit

    TX BEG, 1991, NONPETROLEUM MINERAL PRODUCERS IN TEXAS.

  • Deposit

    MAXWELL, R.A., 1962, MINERAL RESOURCES OF SOUTH TEXAS.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit BASALT IS A PLUG-LIKE INTRUSION THAT FORMS A CONICAL HILL 0.25 MI IN DIAMETER.

Reporter information

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

Beyond USGS

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

Maps centered on this site