"The objective [of this report] is to produce an inventory of those important ecological along the lower Mississippi River on which siting of major industrial facilities and land clearing operations could have an impact."

This report is one part of the second volume containing data on quadrangles of Texas, Oklahoma, Arkansas and Louisiana. This volume contains the detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation map, flight line and geologic base map, individual corrected profiles, computer map unit histograms and statistical tables for the Texarkana quadrangle.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Texarkana Quadrangle in the northeast Texas area.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Texarkana Quadrangle in the northeast Texas area.

This report describes the results of a series of tests on soil borings taken in Atchafalaya Test Section VI, a 2000-ft-long portion of the Atchafalaya Basin Protection Levee System in south-central Louisiana. The samples were tested to interpret the depositional layers in the foundations soils and to determine various engineering properties.

"Approximately 30 radioactive mineral deposits are known to occur in the Gulf Coastal Plain of Texas and Louisianna, north and east of the Guadalupe River. A preliminary field examination and sampling of each deposit has been made"