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.

The following report documents a year-long (1976-1977) study of National Uranium Resource Evaluation (NURE) data available in the area of the Lubbock, Texas quadrangle. The data evaluated includes aerial radiometric and magnetic data, spectrometer data, and rock and soil samples.

A report regarding the location of industry drill holes logged in Texas

Report discussing the stratigraphy of uraniferous rocks discovered near Tordilla Hill in Karnes County, Texas. The report contains sections on the stratigraphy of the area, the structure, uranium minerals, descriptions of individual prospects, and a summary.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the San Angelo National Topographic Map Sheet (NH 14-1). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Big Spring National Topographic Map Sheet (NI 14-10). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Hobbs National Topographic Map Sheet (NI 13-12). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Perryton National Topographic Map Sheet (NJ 14-10). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings. -- check/adjust details

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Sonora National Topographic Map Sheet (NH 14-4). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Final report documenting a high-sensitivity airborne gamma radiation and magnetic field survey of the Texas portions of the Crystal City (NH 14-11 quadrangle) National Topographic Map segment including a description of the program and results.

Abstract: Ground water continues to discharge into the Navidad and Lavaca Rivers by seepage out-flow even though large amounts of ground water are pumped for irrigation. Although a reduction in streamflow probably has occurred, a complete loss of the low flow of the streams by infiltration to a lowered water table seems remote. The large ground-water withdrawals will continue to cause land-surface subsidence, which will range from 0.012 foot to more than 0.026 foot per year. A minimum of about 0.013 to 0.015 foot of annual subsidence at the upper ends of the proposed reservoir and a maximum of about 0.019 foot near the dam site can be expected. Structural failures of manmade features have not occurred from the subsidence, but regional changes in the land slope have occurred and will continue . Numerous fault traces have been mapped in the area, but most of the faults are inactive. If movement along the fault planes should occur, the vertical displacement probably will not exceed the total subsidence.

Abstract: Experiments using highly turbid water from playa lakes for injection into the Ogallala Formation have resulted in greatly decreased yield of the recharge wells. Recharge of ground or surface water of good quality has indicated, however, that injection through wells in an effective method of recharging the aquifer. Water that is slightly turbid can be successfully injected for a period of time, but generally results in constantly declining yields and capacity for recharge. Redevelopment through pumping and surging significantly prolongs the life of recharge wells under some conditions. Surface spreading is little practiced on the High Plains, but locally may be a feasible means of artificial recharge.

Report regarding an airborne gamma-radioactivity survey that took place in the 2,800 square mile area around the Los Angeles region in California. Topics include the types of bedrock noted in the area as well as their levels of radioactivity.

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.

Technical paper issued by the Bureau of Mines over studies of waste in oil and gas fields in the mid-continent area. As stated in the introduction, this report "describes the general amounts and kinds of waste, and attempts to show the importance of conserving these natural resources" (p. 5). This paper includes tables, maps, illustrations, and photographs.

"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"

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Hobbs quadrangle in New Mexico and Texas.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Hobbs quadrangle in New Mexico and Texas.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Crystal City quadrangle in Texas.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Sonora quadrangle in Texas.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Sonora quadrangle in Texas.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Perryton quadrangle in Texas and Oklahoma.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Perryton quadrangle in Texas and Oklahoma.