This publication presents descriptions of the formations present in the subsurface in northwestern Arkansas.

It includes:

• Stratigraphy of the Powell dolomite, Everton formation, St. Peter sandstone, Joachim dolomite, Plattin-Kimmswick limestones, Fernvale limestone-Boone formation, Fayetteville shale, Pitkin limestone, Morrow group, Atoka formation, Post-Atoka Pennsylvanian
• Structure of these units
• Oil and gas possibilities of the units
• Location map for referenced wells
• Isopach and structural contour maps for many of the units
• Generalized pre-Chattanooga paleogeographic map
• Tables include: formations and thicknesses penetrated in reference wells, list of reference wells, reference wells used for construction of each plate, gas potentials of reference wells

*Includes: 14 pages, 17 plates, 1 figure, 4 tables

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