data construction and use

oklahoma geological survey

The format of the data as an ESRI shapefile was originally used as a cartographic tool for constructing a printable map. The map was digitized at a scale of 1:24,000. Errors may exist from the digitizing process done at that scale. This may include errors in relation to the locational accuracy and precision of:  the contact or map unit boundary to the topographic contour; a map unit layer to another map unit layer (e.g., gaps, overlaps, slivers, overshoots). These data and adjoining data for other quadrangles were produced on a quadrangle-by-quadrangle basis. Therefore, misalignment issues may exist between these data and other data downloaded for adjoining quadrangles. Also, the attribute table for each geologic feature layer may not contain detailed information except when used for categorizing or rotating some feature objects. Specific information about each geologic unit can be found in the Description of Units on the published PDF map. Currently underway, these issues are being resolved for each quadrangle map through revision and implementation of a geologic data model based on an ESRI geodatabase environment. These revised data files will be available for download on the OGS website in the near future.

This digital map is not meant to be used or displayed at any scale greater than 1:24,000. Users should cite the Oklahoma Geological Survey as the original source of the data, but clearly denote cases where the original data has been updated, modified, or in any way altered from the original condition. There are no restrictions on the distribution of the data or interpretations shown on this data or reproduction of the data from the graphics files. However, users are encouraged to refer others to the Oklahoma Geological Survey to acquire the original data or any updated versions of the data.

The Oklahoma Geological Survey (OGS) provides these geologic data “as is”. The OGS makes no guarantee or warranty concerning the accuracy of information contained in the data. The OGS further makes no warranties, either expressed or implied, as to any other matter whatsoever including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the OGS, no warranty, expressed or implied, is made by the OGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.

In no event shall the OGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geologic data or arising out of the delivery, installation, operation, or support by OGS.

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