David J. Weary and Robert E. Weems, 2004, Geologic map of the Van Buren North quadrangle, Carter, Reynolds, and Shannon County, Missouri: Geologic Investigations Series, U.S. Geological Survey, Reston, VA USA.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.000032
Ordinates (y-coordinates) are specified to the nearest 0.000032
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
703-648-6897 (voice)
dweary@usgs.gov
The purpose of this geological map and database is to support and be part of a three-dimensional geologic framework study of south-central Missouri. The framework will be used to assess environmental impacts of lead and zinc mining in the Mark Twain National Forest on the hydrologic system of the Ozark National Scenic Riverways.
All polygon atributes were checked for correct values against original field data by the geologists.
These data were created by delineating the boundaries from inked lines on a stable-base USGS 7.5 minute topographic map at 1:24,000 scale. Therefore, the mapped horizontal accuracy is assumed to be within National Map Accuracy Standards, with a horizontal accuracy of 45.6 feet at the 95% confidence level.
These data were created by delineating the boundaries from inked lines on a stable-base USGS 7.5 minute topographic map at 1:24,000 scale. Therefore, the mapped vertical accuracy is assumed to be within National Map Accuracy Standards, with a horizontal accuracy of 11.9 feet at the 95% confidence level.
These data are complete at a resolution of 1:24,000
These data are believed to be logically consistent, though no rigorous formal test were performed. Polygon coverages were queried to screen for empty or inconsistent values. Line geometry is topologically clean.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Although all data and software released on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software. None with proper citation. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
703-648-6897 (voice)
dweary@usgs.gov
Downloadable Data
Although all data and software released on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the
Data format: | Size: 0.361 |
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Cooperators or researchers with a need for the data may request a CD-ROM if downloading from the internet is not feasable. Contact David Weary, 703-648-6897 or dweary@usgs.gov with request.
email dweary@usgs.gov
The graphic file for the full map plate requires Adobe Acrobat Reader 5.0 or above. Use of the GIS data files requires a GIS software capable of viewing shapefiles produced by ESRI ArcMap V. 9.0.
703-648-6897 (voice)
dweary@usgs.gov