Extensive diagenetic changes have occurred in deltaic sandstones of the "Gray" interval, Strawn Series (Pennsylvanian) from Taylor County, Texas. The present burial depth of the "Gray" interval is feet (1370 m.), and maximum ...

The Yellow Hill Quadrangle is between the Bofecillos, Davis, and Chisos volcanic centers of Trans-Pecos Texas. Tertiary volcaniclastic deposits occur only as small outliers on downthrown sides of faults. Erosion has removed ...

The major purpose of this study was to examine in detail the anomalous transgressive "boundary" sandstones which generally are present at formation boundaries throughout the Parras and La Popa basins. These extensive ...

Ancient and modern flood plain and channel morphology was mapped in the late Quaternary alluvial valley of the Colorado River between Utley and La Grange, Texas. The analysis of N.A.S.A.-generated color aerial infrared ...