Geologic map of the Jasper quadrangle, Newton and Boone Counties, Arkansas

To provide a digital geologic map database of the quadrangle that improves understanding of the regional geologic framework and its influence on the regional groundwater flow system.

This digital geologic map compilation presents new polygon (i.e., geologic map unit contacts), line (i.e., fault, fold axis, and structure contour), and point
(i.e., structural attitude, contact elevations) vector data for the Jasper 7 1/2' quadrangle in northern Arkansas. The map database, which is at 1:24,000-scale resolution, provides geologic coverage of an area of current hydrogeologic, tectonic, and stratigraphic interest. The Jasper quadrangle is located in northern Newton and southern Boone Counties about 20 km south of the town of Harrison. The map area is underlain by sedimentary rocks of Ordovician, Mississippian, and Pennsylvanian age that were mildly deformed by a
series of normal and strike-slip faults and folds. The area is representative of the stratigraphic and structural setting of the southern Ozark Dome. The
Jasper quadrangle map provides new geologic information for better understanding groundwater flow paths in and adjacent to the Buffalo River watershed.

The current map database incorporates geologic data from: (1) early geologic mapping (1906) by Purdue and Miser and (2) more recent field mapping (1995-1998) by M. R. Hudson. Buffalo National River, under the auspices of the National Park Service, occupies the central part of the map area.

>FILES INCLUDED WITH THIS DATA SET:
>jsp24k: geology polygon coverage
>jsppnt: strike/dip point locations and data
>jspcontrol: field elevation control points
>jspcontour: structure contours on the top of the Boone Formation
>geoscamp1.lin: geologic line symbols
>geoscamp1.mrk: geologic marker symbols
>fnt037: font used with geoscamp1.mrk
>wpgcmykg.shd: shadeset used to color polygons in jsp24k coverage
>fnt027: font containing geologic age symbols