|George Burr Chair Professor|
|BS., Geology Department, University of Colorado (1978)|
|MS.,Geology Department, George Washington University (1982)|
|PhD.,Department of the Geophysical Sciences, University of Chicago (1993)|
|Geologist/Physical Science Techincian, U.S. Geological Survey (1979/10-1989/01)|
|AssociateResearch Scientist, University of Arizona (1994/01-2000/07)|
|Research Scientist, University of Arizona(2000/07-2009/01)|
|Senior Research Scientist, University of Arizona(2009/01-present)|
- Position: Chair Professor
1. 14C and 129I time series studies of seawater and corals.
2. Quantification of iodine in natural waters.
3. development of specialized AMS techniques and paleoenvironmental studies.