Recent projects or go to published papers
Geology of Proterozoic metasediments in Madagascar: GSA abstract 2003. Supported by the National Science Foundation photo by Christian Nicollet		Geological controls on formation of lavakas in central Madagascar. GSA Abstracts: 2003, 2004. Supported by the National Science Foundation.		Mapping craters and chaos on Jupiter's moon Europa, and ice-impact experiments in collaboration with Masahiko Arakawa at Hokkaido University. LPSC abstract 2004; GSA abstract 2004
Ecological changes and sedimentation on the Mary Creek reef complex, St. John, U.S. Virgin Islands: Pictures. GSA abstract 2004. Supported by the Williams College Geosciences Department Sperry Family Fund		Diagenetic effects on quartz-cobble conglomerates: Supported by the National Science Foundation and the Petroleum Research Fund. photo by Drew Coleman		Sedimentology and tectonics of the Proterozoic Mazatzal Group in Arizona (in conjunction with the Keck Geology Consortium)