Gravity Data: A Foundation for Integration of Geological and Geophysical Data

Wednesday, August 26, 2015: 1:40 PM
G Randy Keller Jr, University of Oklahoma, Norman, OK, United States
Regional, and sometimes detailed, gravity data are available in many parts of the world, and satellite data have also emerged as a viable resource for integrated studies. Thus, in many cases, these data can form a foundation for integrated studies that provide constraints that extend below and/or beyond the special extent and depth of seismic, electromagnetic, geochemical, and drilling data. Magnetic data are also valuable in a similar fashion, but integrating gravity and seismic data has the advantage of a usually reliable empirical relationship between density and seismic velocity. In a series of case histories, I will present examples of gravity mapping and modeling spatially extending the results of seismic studies, tying the results of seismic studies together, and gravity modeling intimately constrained by a variety of geologic data. These examples address a variety of scales (crustal structure to brine disposal from a desalinization facility), applications (basin studies to earthquake hazards), and locales (North America, Africa, Europe, and Africa).