Now showing items 1-10 of 90
Stratigraphy, vertebrate paleontology and depositional history of the Ogallala Group in Blanco and Yellowhouse canyons, northwestern Texas
The late Miocene Ogallala Group is up to 90 meters thick in exposures along the eastern escarpment of the High Plains in Crosby, Garza and Lubbock Counties, Texas. Two formations are mapped in this section. The lower ...
Computer simulation of mass transport in groundwater : affect of macroscopic heterogeneities in hydraulic conductivity
In this study a computer model was used to simulate dissolved chloride movement through alluvial sediments which border the Canadian River in Hutchinson County, Texas. Hydraulic conductivity values of the sediments were ...
An investigation into the nature of the symbiotic stars
A sample of twelve symbiotic variables were examined using both low and high resolution ground-based and satellite observations between 1977 and 1981. The majority of the stars were quiescent stellar, or S-type, systems; ...
Microstructures and sense of shear in the Brevard Zone, southern Appalachians
The Brevard Zone, which separates the Blue Ridge and Inner Piedmont geologic provinces in the southern Appalachians, is a major structural feature with a multiple deformation history. Microstructures in oriented thin ...
Fluid content effect on acoustic impedance and limits of direct detection capability : illustrated on an offshore prospect
The presence of gas and oil in some sand formations decreases the seismic velocity and density to such an extent that anomalously large reflections coefficients are encountered at fluid contacts. Geerstma and Gassmann's ...
Petrology and burial diagenesis of Plio-Pleistocene sediments, northern Gulf of Mexico
Plio-Pleistocene sediments and rocks beneath the Louisiana and adjacent Texas shelves are the youngest of several thick packages of terrigenous sediment which prograded into the Gulf of Mexico during the Cenozoic. Comparison ...