- Atmospheric evolution
(terrestrial samples and SNC/Martian meteorites)
- Atmospheric deposition
(environmental studies of nitrate and sulfate)
- Co-evolution of life and the surface environment
across critical transitions in the history of Earth and Life
- Cosmochemistry
(evolution of water early in solar system)
- Determination of the changes in the isotopic
composition of the oceans through time
- Developing tools to investigate the
antiquity of biological processes
- Developing tools to investigate the flow of sulfur
through geological, biological, and sedimentary systems
- Experimental studies of
photochemical mass-independent isotope effects
- Multiple sulfur isotopes as a tracer of magma sources
and surface sulfur in the Bushveld Complex
- Paleoclimatic field reconstruction from sparse
observational networks of proxy observations
- Paleoclimatology of ENSO via
high
resolution
light
stable isotopic measurements in marine and
terrestrial archives
- Proxy system modeling
- Quantifying biogeochemical transformations in
watersheds
- Role of water in climate change processes on
interannual to centennial timescales
- Tracking sources of pollution using isotopic tracers
- Tracking hytadrologic sources and flowpaths in
watersheds
- Use of stable isotopes in long-term ecological
research
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