Sedimentology, Climate Change
Office: 311-1 Davis Hall
Phone: (815) 753-7952
Ph.D. 1980; Ohio State University
Evaluating processes at and near marine-ending glaciers in Alaska, Chile and Antarctica to 1) evaluate their stability during global climate change, 2) determine the type of sedimentary record that these glaciers would leave in order to infer past glacial/climatic condition from older deposits and 3) conduct marine geology and geophysical studies of Cenozoic sediments on continental shelves to document past glacial fluctuations through time.
Watch a video explaining some of my research.
Cowan, E.A., Cai, J., Powell, R.D., Clark, J.D., and Pitcher, J.N., 1997. Temperate glacimarine varves: an example of Disenchantment Bay, southern Alaska. Journal of Sedimentary Research, 67: 536-549.
Cai, J., Powell, R.D., Cowan, E.A., and Carlson, P.R., in press. Substantiating seismic reflection interpretations of temperate glacimarine sediment (Alaska) by comparison with known depositional processes and lithofacies. Marine Geology.
Seramur, K.C., Powell, R.D., and Carlson, P.R., in press. Seismic facies analysis of a Neoglacial morainal bank complex in Muir Inlet, Glacier Bay, Alaska. Marine Geology.
Stravers, J.A. and Powell, R.D., in press. Glacial debris flow deposits on the Baffin Island shelf: seismic facies architecture of till-tongue like deposits. Marine Geology.
Dawber, M. and Powell, R.D., in press. Epifaunal distributions at marine-ending glaciers: influences of ice dynamics and sedimentation. Proceedings VII International Symposium on Antarctic Earth Sciences, Siena, Italy.