Randall Schaetzl is a Professor of Geography and Geosciences at Michigan State University. His research has been published in all the leading soils, geomorphology, and geography journals. He is the editor of the Soils section for the International Encyclopedia of Geography (Association of American Geographers) and a Fellow of the Geological Society of America. He is an expert in the soils and landforms of the Great Lakes region, and he is editor-in-chief of Michigan Geography and Geology (2012). His expertise on podzolization and pedoturbation has led him to publish numerous papers on these widespread soil processes.
Michael Thompson is a Professor of Soil Science at Iowa State University. For more than twenty years, he taught pedology and clay mineralogy courses, and for the past ten years he has taught courses in soil chemistry. Thompson's research has dealt with paleosols, soil organic matter, and the fate of actinides, heavy metals, and organic contaminants in waste-amended soils. His research seeks to identify the chemical and physical conditions that favor stability, transformations, and movement of soil organic matter, anthropogenic contaminants, and clay minerals in soils. He is a Fellow of the Soil Science Society of America, the American Society of Agronomy, and the American Association for the Advancement of Science.
