About the Author: Mike Leeder is Professor Emeritus at the University of East Anglia, Norwich, England. A geologist by training, at the University of Durham, he has researched and taught sedimentology since 1969, beginning as a graduate student at the Sedimentological Research Laboratory, University of Reading under the legendary Perce Allen and as faculty member at the Universities of Leeds and East Anglia. He is particularly interested in sedimentological fluid dynamics, basin analysis and the links between sedimentary processes and climate change.