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Research
Interests
Major
research interests include the following areas:
- Isotopic
tracers of hydrologic processes - Specific research projects have
focused on topics entailing determination groundwater source regions,
estimation of fluid infiltration rates from the isotopic signatures
of vadose zone pore water, and tracking fluid and contaminant
migration through the unsaturated zone.
- Isotope
monitoring of subsurface biologic processes - This work has involved
laboratory experiments to determine the magnitude of isotopic
fractionation resulting from microbial metabolic processes.
There have also been a series of field studies of bioremediation
of organic contaminants (including petroleum hydrocarbons and
chlorinated solvents) and methane cycling.
- Climate
Change - Projects include a study of the isotopic compositions
of the different components of the water cycle and a series of
investigations of isotopic shifts recorded in the geologic record
caused by natural climatic variations.
- Crustal
fluid-rock interaction - Research in this area has included isotopic
studies of the effects of fluids on deep metamorphic processes,
hydrothermal systems, and sedimentary basins. Currently,
isotopic measurements of water and CO2 are being used
to examine the effects of heating on the chemistry of rocks at
Yucca Mountain.
Education
Professional
Experience , Service,
and Affiliations
Invited
Presentations
Research
Supervision
Publications
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Mark
Conrad
Scientist
Department Head
Geochemistry Department:
Center for Isotope Geochemistry
Phone:
510-486-6141
Fax: 510-486-5496
Email: msconrad@lbl.gov
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