John Holbrook is a Professor in the Department of Geological Sciences at Texas Christian University.  He previously served as a Professor at University of Texas at Arlington and Southeast Missouri State University, and has held adjunct/guest professor positions at Enugu State University, Nigeria; St Petersburg State University, Russia; University of Texas at Dallas; and Hebrew University, Jerusalem.  His research interests are field oriented, focusing mostly on both modern and ancient fluvial systems and physical stratigraphy.  Current interests include controls on permeability trends and connectivity of flow paths in sediments, quantifying fundamental sedimentary processes at small and large scales, preservation of modern processes in the stratigraphic record, and tectonic and climatic impact on rivers.  He applies his research widely across petroleum, geothermal, and environmental issues, and is well published, well cited (<5000), and active professionally in each of these fields.  He has thus far graduated 39 M.S. and four Ph.D. thesis…