The Age and Correlation of the Chalk at White Cliffs, Arkansas, with Notes on the Subsurface Correlations of Northeast Texas

Abstract

The micro-fauna found in the chalk at White Cliffs, Sevier County, Arkansas, in the chalk at Rocky Comfort, Little River County, Arkansas, in the chalk at Clarksville, Red River County, Texas, and in the Pecan Gap chalk of Texas is the same and is Upper Taylor in age. Neither the Austin chalk nor Stephenson's Annona tongue of the Austin are present on the surface in northeast Texas east of Lamar County and in the wells east of Lamar and Hopkins counties. The sands which occur in the wells in northeast Texas below the Austin chalk and the Brownstown formation and which commonly have been called are Veatch's sub-Clarksville sands and are Upper Eagle Ford in age. The true Blossom sands, which are exposed at Blossom and Paris, Texas, are equivalent to the upper part of the Austin chalk.