My research focuses on quantifying and understanding low-temperature geochemical processes using sensitive major and trace element analytical techniques in conjunction with radiogenic and stable isotope measurements.
Specific interests include:
- Mineral weathering and its impact on local and global cycles
- The Great Unconformity and soils at the PC-C boundary
- Mercury photochemistry in freshwater environments
- Mercury emission from surfaces of waterbodies, plants, and sediments
- Fate and transport of toxic trace metals in groundwater
- Metal speciation and adsorption/desorption on natural and synthetic materials
- Biotic controls on metal transformations
- Use of GIS techniques to address geochemical problems
- Advancement of analytical methods in geochemistry.