Now showing items 1-10 of 150
Sedimentology and petrography of a distributary channel complex in the Aguja Formation (Late Campanian), Big Bend National Park, Texas
(Texas Tech University, 1988-12)
The Upper Cretaceous Aguja Formation and the underlying Pen Formation, northwest of the Grapevine Hills in the northcentral part of Big Bend National Park, was deposited in a fluvial-dominated deltaic depositional environment. ...
Precambrian structural and metamorphic history of the Rociada Area, New Mexico
(Texas Tech University, 1976-08)
Precambrian rocks are exposed in the eastern foothills of the southern Sangre de Cristo Mountains in the Rociada area of north-central New Mexico. These rocks, overlain by Paleozoic sedimentary rocks, are divided into an ...
Petrography of the middle and upper Holder Formation (Upper Pennsylvanian), Sacramento Mountains, New Mexico
(Texas Tech University, 1985-12)
The middle and upper Holder formation (Upper Pennsylvanian), Sacramento Mountains, New Mexico, comprises terrigenous and carbonate facies that accumulated on a narrow open to restricted marine shelf. Differential subsidence ...
A paleomagnetic study of some Texas intrusives
Characterization of geothermal anomalies in the Louisiana continental shelf, Gulf of Mexico, using corrected bottom-hole temperatures
Some localized, high geothermal-gradient anomalies are observed in the continental shelf off southwestern Louisiana. While typical geothermal gradients in the Louisiana shelf range from .013 °C/m to .035 °C/m, those in the ...
Sedimentology of the Cretaceous-Paleogene Boundary Interval in the Tornillo Group of West Texas
ABSTRACT A recently discovered outcrop of the Tornillo Group at Rough Run Creek in Big Bend National Park provides the best exposure of the Cretaceous/Paleogene (K/Pg) boundary interval thus far known in the Big Bend region. ...
Studying the geometry and kinematics of gypsum-filled fractures in the Permian Strata of Caprock Canyons State Park, Texas, USA
Characteristic sets of veins can be found in the Permian rocks within the Southern High Plains. This network of veins are cut by the South Prong of the Little Red River in Caprock Canyons State Park, creating excellent 3-D ...
Late pleistocene geology of Pluvial Lake Mound, Lynn and Terry counties, Texas
(Texas Tech University, 1968-06)
Geology of the Thermal Water Area and Deposits North of Dubois, Wyoming
(Texas Tech University, 1942-06)
The Wind River Mountains are made up of a core of pre-Cambrian granodiorites and are in the form of a large anticline. The northeast flank is a dip slope wit h sediments ranging from Cambrian through Pleistocene with the ...
Petrographical, petrophysical, and biostratigraphical investigation of the Caddo Limestone (Pennsylvanian) Stephens County, Texas
(Texas Tech University, 2001-12)
The Pennsylvanian Caddo Limestone (Desmoinesian) of Stephens County, Texas, is a thick-hydrocarbon bearing carbonate unit. The uppermost Caddo is an algal-mound structure formed by the sediment-baffling effect of phylloid ...