Structural Measurement Atlas
Atlas / States / Texas

Texas strike and dip data

3,132 structural measurements in Texas, digitized from 107 published geologic maps across 2 sources. Every row carries its azimuth, inclination, measurement type, location confidence and the citation of the map it came from.

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What kinds of measurement

The Atlas separates planar structures, recorded as a strike and dip, from linear ones, recorded as a trend and plunge. This is what Texas holds:

Measurement typeGeometryMeasurementsShare
Bedding Planar — strike and dip 2,22571%
Fault plane Planar — strike and dip 48315%
Joint Planar — strike and dip 32510%
Vein / dike Planar — strike and dip 903%
Other Planar — strike and dip 7<1%
Fold hinge / axis Linear — trend and plunge 2<1%

Where the data comes from

Each source is a survey, agency or program whose published mapping was harvested and reconciled into one schema. Rows are published only where the source's terms permit redistribution.

SourceMeasurementsShare
NPS GRI parks 3,04297%
USGS data releases · MRDS 903%

Most-measured published maps

The individual quadrangles and data releases contributing the most measurements in Texas. The full citation for every map behind a selection ships in the sources.csv of any export.

Published mapYearScaleMeasurements
adapted from: Turner, K.J. et al., 2011, Geologic Map of Big Bend National Park, Texas: U.S. Geological Survey, Scientific Investigations Map SIM-3142, scale 1:75,0002023 75000998
adapted from: R.M.P., N.G.J. and W.B.T. 1963. Karst Features Near Amistad Dam. International Boundary & Water Commission. 1:12,0002010 12000627
adapted from: Webster, R. E. 1982. Geology of the Carta Valley Fault Zone Area: Edwards, Kinney, and Val Verde Counties, Texas. University of Texas, Bureau of Economic Geology. Geologic Quadrangle Map GQ-0053. Scale 1:96,000.2010 96000426
adapted from: Skotnicki, Steven J., 2022, Geologic Map of the Guadalupe Mountains National Park, Culberson and Hudspeth Counties, Texas: New Mexico Bureau of Geology and Mineral Resources, Open-File Report 61, scale 1:24,0002022 24000288
adapted from: R.B.H., G.A.K. and L.H.H. 1951. Areal Geologic Map San Francisco Creek to Indian Creek Reach, Area 6. International Boundary & Water Commission. A-245. Scale 1:50,000.2010 50000282
adapted from: C.G.E., G.A.K. and L.H.H. 1950. Areal Geologic Map Indian Creek to Del Rio Reach, Area 9. International Boundary & Water Commission. A-221. Scale 1:50,000.2010 5000090
adapted from: Webster, R. E. 1982. Geology of the Carta Valley Fault Zone Area: Edwards, Kinney, and Val Verde Counties, Texas. University of Texas, Bureau of Economic Geology. Geologic Quadrangle Map GQ-0053. Scale 1:96,000.2010 9600076
adapted from: C.G.E., G.A.K. and L.H.H. 1951. Areal Geologic Map Indian Creek to Del Rio Reach, Area 7. International Boundary & Water Commission. A-223. Scale 1:50,000.2010 5000067
adapted from: Collins, E. W. 2007. Geologic Map of the Del Rio, Texas, Area. University of Texas, Bureau of Economic Geology. Miscellaneous Map 45. Scale 1:100,000.2010 10000050
adapted from: C.G.E., G.A.K. and L.H.H. 1950. Areal Geologic Map Indian Creek to Del Rio Reach, Area 8. International Boundary & Water Commission. A-222. Scale 1:50,000.2010 5000039
adapted from: Barnes, Virgil E., 1982, Geology of the Pedernales Falls Quadrangle, Blanco County, Texas: Texas Bureau of Economic Geology, University of Texas at Austin, Geologic Quadrangle Map GQ-49, scale 1:24,0002023 2400035
adapted from: Barnes, Virgil E., 1969, Geology of the Johnson City Quadrangle, Blanco County, Texas: Texas Bureau of Economic Geology, University of Texas at Austin, Geologic Quadrangle Map GQ-25, scale 1:24,0002023 2400024
adapted from: Barnes, Virgil E., 1965, Geology of the Rocky Creek Quadrangle, Blanco and Gillespie Counties, Texas: Texas Bureau of Economic Geology, University of Texas at Austin, Geologic Quadrangle Map GQ-29, scale 1:24,0002023 2400020
adapted from: Barnes, Virgil E., 1967, Geology of the Cave Creek School Quadrangle, Gillespie County, Texas: Texas Bureau of Economic Geology, University of Texas at Austin, Geologic Quadrangle Map GQ-32, scale 1:24,0002023 2400013
adapted from: Barnes, Virgil E., 1966, Geology of the Stonewall Quadrangle, Gillespie and Kendall Counties, Texas: Texas Bureau of Economic Geology, University of Texas at Austin, Geologic Quadrangle Map GQ-31, scale 1:24,0002023 240004

Most-measured map units

Where a source recorded the geologic unit a measurement was taken on, the Atlas keeps it. These are the units carrying the most measurements in Texas.

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