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Buda Limestone

Buda Limestone

State Texas

Name Buda Limestone

Geologic age Phanerozoic | Mesozoic | Cretaceous-Early

Original map label Kbu

Comments In Eastern part of Trans-Pecos and High Plains- Buda 

Ls--fine grained, bioclastic, commonly glauconitic,

pyrite, hard, massive, poorly bedded to nodular, lt gray 

to pale orange; urrows filled with chalky marl, abdt 

pelecypods; formation is as much as 45 ft thick. In

Western part of Trans-Pecos Texas- Buda Ls--upper 

part-- thin to thick beds, resistant, few chert nodules; 

middle--interbedded gray ls, marl, and calc shale, 

limonite nodules; lower--fossilif., aphanitic ls, thin to 

thick beds; formation is 200-350 ft thick. In North, 

central, and south Texas including Quaternary for all of 

west Texas- Buda Ls--fine grained, bioclastic (molluskfragment-bearing), marly interbeds, commonly 

glauconitic, pyrite, hard, massive lt gray to pale orange; 

formation is 45-100 ft thick.

Primary rock type limestone

Secondary rock type

Other rock types

Lithologic constituents Major 

Sedimentary > Carbonate > Limestone (Bed)

Minor 

Sedimentary > Clastic > Mudstone > Shale (Bed)

Sedimentary > Carbonate > Marlstone (Bed)

Map references Bureau of Economic Geology, 1992, Geologic Map of Texas: 

University of Texas at Austin, Virgil E. Barnes, project supervisor, 

Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000 

Unit references

Buda Limestone (TXKbu;0) Page 1 of 2

http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=TXKbu%3B0 10/21/2014
Bureau of Economic Geology, 1974, San Antonio Sheet, Geologic 

Atlas of Texas, University of Texas, Bureau of Economic Geology, 

scale 1:250,000. 

Bureau of Economic Geology, 1979, Marfa Sheet, Geologic Atlas of 

Texas: Bureau of Economic Geology and The University of Texas at 

Austin, scale 1:250,000. 

Bureau of Economic Geology, 1976, Pecos Sheet, Geologic Atlas of 

Texas: University of Texas at Austin, Bureau of Economic Geology, 

scale 1:250,000. 

Bureau of Economic Geology, 1977, Del Rio Sheet, Geologic Atlas of 

Texas, University of Texas, Bureau of Economic Geology, scale 

1:250,000. 

Bureau of Economic Geology, 1981, Llano sheet, Geologic Atlas of 

Texas, Bureau of Economic Geology, University of Texas at Austin, 

scale 1:250,000. 

Bureau of Economic Geology, 1970, Waco Sheet, Geologic Atlas of 

Texas, University of Texas, Bureau of Economic Geology, scale 

1:250,000. 

Bureau of Economic Geology, 1974, Austin Sheet, Geologic Atlas of 

Texas, University of Texas, Bureau of Economic Geology, scale 

1:250,000. 

Geographic coverage Brewster - Crockett - Culberson - Edwards - Hudspeth - Irion - Jeff 

Davis - Kimble - Kinney - Menard - Pecos - Reagan - Reeves - 

Schleicher - Sutton - Terrell - Tom Green - Upton - Uvalde - Val 

Verde

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U.S. Department of the Interior | U.S. Geological Survey

URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=TXKbu;0

Page Contact Information: Peter Schweitzer

Buda Limestone (TXKbu;0) Page 2 of 2

http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=TXKbu%3B0 10/21/2014