Geologic Mapping Using the H/V Spectral Ratio Method in the North-Central United States
Daniel Blake, Ohio Department of Natural Resources, Division of Geological Survey, Delaware, OH, John Esch, Oil, Gas, and Minerals Division, Michigan Department of Environment, Great Lakes, and Energy, Lansing, MI, Carole Johnson, Hydrogeophysics Branch, U.S. Geological Survey, Storrs, CT, Brian Currie, Department of Geology and Environmental Earth Science, Miami University, Oxford, OH and Ernest Hauser, Wright State University