This folded transparent map is at the same scale as its corresponding Geologic Atlas of Texas (GAT) sheet and can be superimposed on it to compare gravity information with surface geology.

This folded transparent map is at the same scale as its corresponding Geologic Atlas of Texas (GAT) sheet and can be superimposed on it to compare gravity information with surface geology.

Changes in shoreline position occurring for more than a century provide estimates of the relative stability of shorelines and, along the Texas coast, allow comparisons of shoreline changes before and after human modifications became significant.

Statistical analysis of chemical data on Texas Eocene coals revealed startigraphic and geographic trends in lignite quality. Chemical data on near-surface coals wre obtained from various private and public sources. Seams from deep-basin coals were compared. Wilcox coals are the best for combustion processes, Yeagua coals are intermediate, and Jackson coals are the poorest. Wilcox Group coals, in the Sabine Uplift particularly, are borderline lignite A to subbituminous C in rank in both the near surface and the deep basin. Jackson Group coals are lignite A in the near surface.