Indiana University Bloomington

Sedimentation & Stratigraphy

Petrology of sedimentary rocks is fundamental to the understanding of the processes that range from tectonism of the earth to the interaction of the atmosphere, hydrosphere, and the biosphere with the solid earth. Low-temperature geochemical processes contribute to the modification of original sediments as well as to their preservation. More than half of the faculty of the department relate to sedimentary petrology directly or in an interdisciplinary way.

Abhijit Basu works on the provenance of sand and sandstone. Basu also analyzes the petrology of lunar soils.

David Bish, Haydn Murray Chair in Applied Clay Mineralogy, studies applications of crystal chemical and crystal structural fundamentals to geological, materials, and environmental problems, using a combination of experimental and theoretical methods. Applications include especially Clay and Zeolite Mineralogy using X-ray and neutron powder diffraction methods.

Douglas Edmonds, Rbert R. Shrock Professorship in Sedimentary Geology, Assistant Professor of Geological Sciences. My research focuses on the sedimentology, stratigraphy, and geomorphology of depositional sedimentary systems. Example projects and scales of interest range from: secondary circulation and turbulence to formation of reach-scale features such as levees, to whole system behavior of deltas and river belts. I use a combination of mathematical modeling, field observation, and occasionally experimentation to understand these systems. My research is generally directed toward understanding the coupled surficial and sedimentological evolution of these systems. Below is a list of research interests and a brief description of each. SedSystems Lab

Julie Fosdick Assistant Professor, Sedimentary Geology and Tectonics. My research addresses the interactions between crustal deformation, exhumation, and basin evolution during mountain-building. I am particularly interested in understanding the long-term evolution of orogenic belts during their growth and denudation as recorded in the sedimentary record. I draw upon numerous field-based, analytical, and modeling tools that include basin analysis, low–temperature thermochronology, and structural geology.

Ed Ripley, and Erika Elswick study sedimentary mineralogy, soil development and diagenesis. Organic and inorganic sedimentary geochemistry is included in studies by Peter Ortoleva, Lisa Pratt, Ripley and Bob Wintsch.

Juergen Schieber, who joined the IU Department of Geological Sciences in June 2002, specializes in shales, and his research web site provides a wealth of information about his research and about shales in general.

Chen Zhu works on weathering rates in sandstone groundwater aquifers, and fluid flow and chemical reactions in deep sedimentary aquifers, upon the injections of CO2 and industrial wastes.

A large number of adjunct faculty and geologists in the Indiana Geological Survey are involved in many aspects of research in sedimentology, stratigraphy and basin analysis. Our location on the east flank of the Illinois Basin makes study of the formation, history, and depositional settings in this basin particularly convenient. Researchers in the department are studying rocks deposited in the basin as old as Proterozoic and as young as Pennsylvanian. Indeed, some of our faculty and students have studied the sedimentology of the Pleistocene sediments that blanket the northern part of the state and fill the valleys to the south.