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Geomechanical modeling of induced seismicity source parameters and implications for seismic hazard assessment, credited to Goertz-Allmann, BP, published in 2012. Published in Geophysics, volume 78, issue 1, in 2012.
Aeromagneticand gravity surveys were conducted in the Black Rock Desert,Utah to assess the geothermal potential of the Meadow-Hatton KnownGeothermal Resource Area (KGRA). The presence of basalt flows lessthan 1000 yr old and a 400 000 yr oldrhyolite dome suggested that a hot intrusive body, which shouldbe detectable in both types of potential field data, mayprovide the heat source for hot springs in the studyarea. A simultaneous inversion computer program was developed as partof this study to model these potential field data. Theresulting models indicate hydrothermal alteration about the hot springs extendingto a depth of approximately 1 km. Normal faults abovea low-angle detachment appear to reach a depth of approximately4...
Investigation of injection-induced seismicity using a coupled fluid flow and rate/state friction model, credited to McClure, MW, published in 2011. Published in Geophysics, volume 76, issue 6, in 2011.
Seismicdata from the Paradox basin, southeast Utah, exhibit amplitude anomaliesassociated with the presence of Pennsylvanian algal mound reservoirs. Anexperimental line over the Patterson and Nancy fields shows amplitudereductions corresponding to reservoir mound facies. Amplitude reduction is dueto the lateral facies change from intermound evaporite-dominated facies tothe carbonate algal mound facies. Porosity in the mound faciesaccentuates the amplitude reduction but the influence of porosity isminor compared to the effect of the lateral lithologic change.Recurrent movement on basement faults during the Pennsylvanian may havecontrolled the location of these mounds. �1988 Society of Exploration Geophysicists Published...
Investigation of injection-induced seismicity using a coupled fluid flow and rate/state friction model, credited to McClure, Mark W, published in 2011. Published in Geophysics, volume 76, issue 6, on pages WC181 - WC198, in 2011.
TheRANN Division (Research Applied to National Needs) of the NationalScience Foundation has embarked upon a program of encouragement andsponsorship of research on exploration for and exploitation of nonenergynonrenewable resources. To define critical problems requiring research, RANN issponsoring a series of workshops wherein prominent members of industry,academia, and government assemble to debate the issues and producelists of subjects requiring research. The first workshop in thisseries, entitled Published in Geophysics, volume 42, issue 4, on pages 878 - 886, in 1977.
ReflectionP- and S-wave data were used in an investigation todetermine the relative merits and strengths of these two datasets to characterize a naturally fractured gas reservoir in theTertiary Upper Green River formation. The objective is to evaluatethe viability of P-wave seismic to detect the presence ofgas-filled fractures, estimate fracture density and orientation, and compare theresults with estimates obtained from the S-wave data. The P-waveresponse to vertical fractures must be evaluated at different source-receiverazimuths (travelpaths) relative to fracture strike. Two perpendicular lines ofmulticomponent reflection data were acquired approximately parallel and normal tothe dominant strike of Upper Green...
Salinization and alkalinization are the most common land degradation processes, particularly occurring in arid and semi-arid regions, where precipitation is too low to maintain a regular percolation of rainwater through the soil. Under such a climatic condition, soluble salts are accumulated in the soil, influencing soil properties and environment which cause lessening of the soil productivity. The consistent identification of the processes is essential for sustainable soil management. Identification, large scale mapping and monitoring of the salt-affected areas have been done using three different data and techniques. Remote sensing has been widely used to detect and map salt-affected areas, since thousands of...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Geoderma,
geophysics,
remote sensing,
salinization,
soil degradation,
Geophysicalmethods can be helpful in mapping areas of contaminated soiland groundwater. Electrical resistivity and very low-frequency electromagnetic induction (VLF)surveys were carried out at a site of shallow hydrocarboncontamination in Utah County, Utah. Previously installed monitoring wells facilitatedanalysis of water chemistry to enhance interpretation of the geophysicaldata. The electrical resistivity and VLF data correlate well, andvertical cross-sections and contour maps generated from these data helpedmap the contaminant plume, which was delineated as an areaof high interpreted resistivities. Published in Geophysics, volume 62, issue 1, on pages 80 - 86, in 1997.
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