Friday Photo (70): Geologists in the Field – Debrief on the Beach Rosalie Tostevin March 8, 2013 Geologists in the field, Photos Comments Closed Undergraduates have a debriefing session on the beach in Dorset to discuss the geological history of the cliff face in the background. (c) Geology for Global Development 2013 By Rosalie TostevinRosalie was the Himalayas Programme Officer for Geology for Global Development and writer for the GfGD blog. She is a geochemist and a postdoc at the University of Oxford.