Professor of Geochemistry
Director, Penn State Astrobiology Research Center
College of Earth and Mineral Sciences
Phone number(s): 
(814) 865-4074
Office Address: 
435A Deike Building
Research Summary: 

Research interests include astrobiology, stable isotopes, ore deposits and Precambrian geochemistry. Specific focus is on environmental and biological evolutions on early Earth and their influences on the chemical evolution of the atmosphere, oceans, cont