• Professor of Geological Sciences (2007-present), Brigham Young University

• Associate Professor of Geology (2000-2007), Brigham Young University
• Assistant Professor of Geology (1997-2000), Brigham Young University
• Member, Chair, and Vice Chair, Utah State Radiation Control Board [Board membership by Gubernatorial appointment] 1998-2008 representing regulated academic institutions

EDUCATION

• BS, Brigham Young University, 1984
  
• MS, Brigham Young University, 1987
  
• PhD, University of California, Los Angeles, 1991

AREAS OF CURRENT RESEARCH (see publications page)

1. The response of arid groundwater systems to climate change, including structural and stratigraphic controls on interbasin flow.
2. Weathering rates of tropical islands to understand the relative importance of dissolved loads in ground water vs. dissolved and suspended loads in surface water.
3. Assembly of the western U.S. crust, including the location and nature of fundamental boundaries in basement rock.