Geophysical Applications to the Karst of Edwards Aquifer, TX
Presented by: Mustafa Saribudak
January 24th at 9:00 PM EDT
This webinar will present resistivity imaging (2D and 3D), natural potential (NP) and some other geophysical data (conductivity, magnetic, induced polarization, and seismic refraction data) collected over the karstic features of the Edwards Aquifer of southcentral Texas, USA. The data was collected between 2000 and 2016. The evaluated karstic features included caves and conduits filled with air and/or sediments, sinkholes and major faults such as Mt. Bonnell, Haby and Barton Springs faults. Detecting karst-related features using geophysical methods has been proven over the years. But each method has limitations in depth and resolution accuracy based on geological factor such as the size and shape, of the karstic feature. In addition, some methods, such as gravity and seismic, are more labor intensive and they may be cost-prohibitive. More than 16 years of experience using geophysical techniques in karst terrains has proven that the best methods are a combination of NP and resistivity techniques. Several case studies of resistivity and NP methods applied to the karst terrains and to major faults will be discussed in detail in this presentation.
Mustafa Saribudak, Ph.D. is the President of Environmental Geophysics Associates (EGA). He received a master's degree in geology and a doctorate in geophysics from Istanbul Technical University, Turkey. He came to the University of Houston in 1989 to work on a project funded by the National Science Foundation. He worked for Tierra Environmental between 1990 and 1993, where he pioneered application of geophysical methods to environmental problems. He founded EGA in 1994 to provide near-surface geophysical services for engineering, environmental, the oil and gas industry, and real estate developers. During the last sixteen years he has conducted geophysical surveys at more than 300 sites in the U.S and Central America. He has published numerous papers and short notes in geophysical and environmental journals. He is certified with the Texas Board of Professional Geoscientists (Geophysics). He is an active member of Society of Exploration Geophysics, Environmental & Engineering Geophysical Society, Houston Geological Society, and Houston Geophysical Society, Austin Geological Society, South Texas Geological Society. He lives in Austin, Texas.
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