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Geology: Recent submissions
Now showing items 421-440 of 480
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Applicability of 2-D Time-Lapse High-Resolution Seismic Reflection Approach to Image Natural Salt-Dissolution and Subsidence in Central Kansas and Improved Post-Processed Vibroseis Data Characteristics
(University of Kansas, 2009-01-12)The effectiveness of 2-D time-lapse imaging for monitoring natural dissolution of the Hutchinson Salt in eastern Reno County, Kansas was shown to be restricted when comparing high-resolution seismic reflection data acquired ... -
Tomographic Characterization of Aquifer Heterogeneity
(University of Kansas, 2011-05-31)The Darcy's Law proportionality constant, hydraulic conductivity, describes the relative ease or rate at which water can move through a permeable medium and its fine-scale heterogeneity determines preferential flow rates ... -
Ground-penetrating radar imaging of depositional and diagenetic features in an Upper Miocene carbonate reservoir analog, SE Spain
(University of Kansas, 2011-08-31)Optimal hydrocarbon recovery from microbialite-oolite reservoirs can be limited by complex facies geometries and porosity distribution. This study integrates ground-penetrating radar (GPR) and detailed outcrop data for 3D ... -
Separating the Kinetic and Sorption Parameters of Mixed Chlorinated Solvents in Contact with Granular Iron
(University of Kansas, 2011-08-31)Chlorinated solvents and nitroaromatic solvents in drinking-water supplies are an important concern for public health. Granular iron, the most common medium in permeable reactive barriers (PRBs), is very effective at ... -
Forebulge influence on deposition of the Cretaceous Castlegate Sandstone, Book Cliffs, Utah, U.S.A.
(University of Kansas, 2011-08-31)Analysis of facies changes and paleocurrent directions of the incised valley fill of the Late Cretaceous Castlegate Sandstone supports a reinterpretation of the axis of the well-studied Castlegate Sandstone incised valley ... -
A List of Kansas Minerals
(University of Kansas, 1895) -
Thermochronometric constraints on the thermal anatomy and evolution of an extensional accommodation zone and implications on exploration for extensional-type geothermal systems
(University of Kansas, 2011-05-12)The northern Basin and Range province is characterized by a significantly elevated heat flow and geothermal gradient as a result of shallow volcanism and lithospheric stretching and thinning occurring in tandem throughout ... -
Miocene core complex development and coeval supradetachment basin evolution of Paros, Greece
(University of Kansas, 2011-05-23)This study evaluates the tectonosedimentary evolution of Paros, Greece using apatite and zircon (U-Th)/He dating to assess the currently accepted kinematic history and resolve controversy about the formation of and sources ... -
Synapsid Burrows in the Lower Jurassic Navajo Sandstone, Utah
(University of Kansas, 2011-05-03)Enigmatic structures below interdune deposits of the Lower Jurassic Navajo Sandstone near Moab, Utah are interpreted as synapsid burrows based on similar morphologies to fossil and extant synapsid burrows. Two types of ... -
Characterization of a Dipole Flow System Using Point Velocity Probes
(University of Kansas, 2010-11-23)A direct groundwater velocity measurement tool, the Point Velocity Probe, was developed to measure velocities in the vertical and horizontal directions. The tool was designed and tested in a low-cost laboratory flow-through ... -
A Statistical Examination of the Change in Body Size of Mammalian Communities Across the Eocene-Oligocene Boundary
(University of Kansas, 2011-04-19)The body mass change of mammals across the Eocene-Oligocene Boundary (EOB) and the potential relationship with global climate change was studied. Global climate went through a period of dramatic cooling and drying during ... -
Thermochronometric Investigation of Multiple Unconformities and Post-depositional Thermal History of a Fault Block in the Northern Western Desert, Egypt
(University of Kansas, 2010-12-13)Detrital apatite and zircon (U-TH)/He analysis across a recently discovered unconformity in the Western Desert of Egypt provides new insight into the tectonic evolution of northeastern Africa. The unconformity juxtaposes ... -
Controls on reservoir character in carbonate-chert strata, Mississippian (Osagean-Meramecian), southeast Kansas
(University of Kansas, 2010-11-19)Osagean-Meramecian strata in southeast Kansas were investigated to determine structural, relative sea level, diagenetic, and depositional controls on stratigraphy, lithofacies distribution, and reservoir character. Lithofacies ... -
AN EVALUATION OF HYDROSTRATIGRAPHIC CHARACTERIZATION METHODS BASED ON WELL LOGS FOR GROUNDWATER MODELING OF THE HIGH PLAINS AQUIFER IN SOUTHWEST KANSAS
(University of Kansas, 2011-04-27)The Ogallala portion of the High Plains aquifer is the primary source of water for irrigation and municipal purposes in southwestern Kansas. The spatial variability and connectivity of permeable and non-permeable deposits ... -
Investigation of Radar Subsurface Sounding through Seasonal Cycles Collected by Mars Shallow Radar (SHARAD) in the South Polar Area
(University of Kansas, 2011-03-08)Using an orbital-based ground-penetrating radar - SHARAD proves to be an effective method for imaging the Martian surface and subsurface layering at the south polar layered deposit. This investigation focuses on examining ... -
THE ROLE OF ARCHAEAL METHANOGENS IN BIOMINERALIZATION AND METAL CYCLING: FROM THE MICROSCOPIC TO THE GLOBAL SCALE
(University of Kansas, 2010-12-16)Archaea, including methanogens, comprise 20% of microbial biomass in global oceans. This study examines the role of Archaeal cell walls in primary low-temperature (30oC) dolomite formation, the impact of biogenic methane ... -
Application of (U-Th)/He thermochronometry as a geothermal exploration tool in extensional tectonic settings: the Wassuk Range, Hawthorne, Nevada
(Transactions - Geothermal Resources Council, 2010) -
STRATIGRAPHY OF UPPER MIOCENE OOLITE-MICROBIALITE-CORALGAL REEF SEQUENCES OF THE TERMINAL CARBONATE COMPLEX: SOUTHEAST SPAIN
(University of Kansas, 2009-12-17)This study documents the stratigraphic characterization of the Terminal Carbonate Complex (TCC) at two locations within the Cabo de Gata area of southeast Spain, La Molata and La Rellana/Ricardillo. The TCC is a distinctive ... -
A Paleoclimatic and Paleohydrologic Reconstruction of Pleistocene Fossil Lake, Oregon
(University of Kansas, 2010-09-30)Fossil Lake, Oregon, is a Pleistocene lacustrine basin (~ 650-13 ka) in the northwestern part of the Great Basin best known for its abundant and diverse vertebrate assemblage. Multi-proxy studies using lithostratigraphy, ... -
Biogeography and Evolution of the Araneae: A Synthetic Approach
(University of Kansas, 2010-04-18)Various methods are used to study the evolution and biogeography of the Araneae through time. Two new fossil spider species were described from Miocene Dominican amber and French Cretaceous amber. A preliminary biogeographic ...