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Spatial arrangement of deformation bands and processes of formation within porous sandstone : Arches National Park, Utah
(2006)
Individual deformation bands within porous sandstones reduce permeability and form barriers to fluid flow. A network of deformation bands can destroy reservoir connectivity and impose compartmentalization. Consequently, ...
Fracture pattern prediction using geomechanical models incorporating diagenesis, with comparison to outcrop data (Cambrian Eriboll Group sandstones, Northwestern Scotland) and core observations (Tertiary Mirador Formation sandstones, Llanos foothills Colombia)
(2007-12)
Effective and accurate characterization of fracture populations is a key for hydrocarbon reservoir assessments. The challenge is that fractures in the subsurface are exceedingly difficult to sample in meaningful ways. ...
Hyperpycnal flow variability and slope organization of an Eocene shelf margin, Central Basin, Spitsbergen
(2005)
Identification of bypass at the shelf margin is critical to deepwater exploration. The shelf margin of an early Eocene fourth-order sequence with an attached basin-floor fan in the Central Spitsbergen Basin was examined ...
Hillslope seepage erosion, spring sapping, and knickpoint migration : evidence of groundwater sapping Middle Trinity Aquifer, Honey Creek Basin, Comal County, Texas
(2005)
Geomorphic features within Honey Creek basin are consistent with formation by spring sapping which is the erosion of soil and rock by groundwater. Geomorphic evidence includes: swallow holes (stream swallets) that pirate ...
Chronology of Cenozoic tectonic events in western Venezuela and the Dutch Antilles Islands based on integration of offshore seismic reflection data and onland geology
(2005)
Newly acquired BOLIVAR seismic reflection data from offshore western Venezuela and the Dutch Antilles are combined with existing geologic and geophysical data sets to examine the complex chronology of tectonic events ...
Pliocene-Quaternary deformation and magmatism at the southern margin of the Puna plateau, Argentine Andes
(2005)
New fault data and mapping of volcanic rocks from northwestern Argentina's Cordillera de San Buenaventura, a Pliocene-Quaternary, E-W trending volcanic range at the southern margin of the Puna plateau adjacent to the modern ...
Seismic AVO response to variations in sandstone reservoir properties
(2005)
Successful exploration for hydrocarbon reservoirs requires understanding seismic response for different sandstone lithologies. Today, many new targets lie within shale-rich environments such as mud-rich deltaic systems, ...
Nature and source of mineralizing fluids at the Presidio mine, Shafter district, Presidio County, Texas
(2005)
The object of this research is to determine the nature and source of the mineralizing fluids that formed the Presidio Zn-Pb-Ag deposit, and to determine the relationship of the Presidio deposit to the rest of the Shafter ...
The hydrologic function of small sinkholes in the Edwards Aquifer recharge zone
(2005)
Thin soils on Cretaceous karst bedrock typify the Edwards aquifer recharge zone in central and south Texas U.S.A. Most of the recharge occurs in major streambeds in this region, but abundant evidence of active karstic ...
Cenozoic stratigraphic and tectonic history of the Grenada and Tobago basins as determined from marine seismic data, wells, and onland geology
(2005)
This thesis presents an integrated stratigraphic and tectonic evolution of the Grenada and Tobago basins using multi-channel seismic data collected in May, 2004, (BOLIVAR cruise), along with GULFREX seismic data collected ...