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Hosston Formation outcrops in the study area.
This dataset was created as part of the conversion of the 1:250,000 University of Texas, Bureau of Economic Geology Geologic Atlas of Texas map sheets. |
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Hosston Formation outcrops in the study area.
This dataset was created as part of the conversion of the 1:250,000 University of Texas, Bureau of Economic Geology Geologic Atlas of Texas map sheets. |
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This dataset was specifically developed as part of the Geologic Database of Texas. This dataset was derived using a variety of software tools in tandem. These included MS Access (Microsoft Corp.), Illustrator 10.0 (Adobe Systems Inc.), and ArcGIS 9.2 (ESRI Inc.) |
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5000 |
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<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Hosston Formation outcrops in the study area.</SPAN></P><P><SPAN>The Texas Geologic Atlas Project was first cited in the University of Texas - Bureau of Economic Geology (BEG) Report for 1961. In September of that year, compilation of the first of 38 Geologic Atlas of Texas (GAT) hardcopy map sheets began. The project, under the direction of Dr. Virgil E. Barnes, involved the work of 28 BEG geologists and many other geologists, seven cartographers, and several editors. The last GAT sheet was published in 1987, but the GAT has remained on the BEG "Best Seller" list of publications for many years and can be found at: http://www.beg.utexas.edu/mainweb/publications/pubs-bstsell.htm In October 2002, the United States Geological Survey (USGS), in cooperation with the Texas Water Development Board (TWDB), began development of an Environmental Systems Research Institute (ESRI) geodatabase model to capture the power of these data. Phase I (2002-2004) of this effort produced a library of 38 ESRI personal geodatabases representing the original 38 BEG map sheets. Phase II (2005-2006) involved the development of a Statewide Digital Geologic Atlas of Texas, combining the 38 personal geodatabases into one ESRI ArcSDE geodatabase containing more than 145,000 geologic features. Phase III (2007), continued to build on the work completed in the previous two phases with the inclusion of higher-resolution geologic data from the USGS STATEMAP program and on-going geodatabase refinement. The final product is an ESRI personal geodatabase consisting of four feature datasets, corresponding to the four different resolutions of geologic data. Each feature dataset includes two feature classes: rock units and faults. Where available, other geologic feature classes may be included inside the scale-appropriate feature datasets (i.e. member units, geologic contacts, volcanic vents, etc.).</SPAN></P></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Although the USGS has used this dataset, caution should be taken when applying a regionally generalized dataset to a local area. This data was developed and produced at 1:250,000-scale.</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>This dataset was prepared to meet the requirements set in Texas Water Code § 16.060, directing the Texas Water Development Board (TWDB) to conduct studies to identify and designate brackish groundwater production zones. The data provided in these files is accurate as of the date of the file. The TWDB provides this information as a public service in accordance with its statutory responsibility. Users of this data are responsible for checking the accuracy, completeness, currency, or suitability of the information for any particular purpose. The TWDB disclaims any liability for any claims or damages that may result from the use of this data.</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV> |
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GISDATAOWNER.RP250_HSN_D_Cx |
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["geology"] |
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en-US |
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150000000 |
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