ROW:  Oxygen Isotope Fractionation in Marine Biogenic       Phosphates
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Oxygen Isotope Fractionation in Marine Biogenic Phosphates                      Paleotemperature determinations are important in                           paleoclimatology, paleoceanography, and paleoecology.  The goal of              this research is to use isotopes to study recent and fossil                     material to determine ancient ocean temperatures in Paleozoic                   times.  The use of oxygen isotopes in calcium carbonates is well                established for determining paleotemperatures, but carbonates                   shells are susceptible to alteration.  Phosphate minerals are                   more resistant to alteration and are present in a broad range of                marine environments.  This work will grow phosphatic brachiopods                in the lab, and use the isotopic information from the controlled                experiments as a possible model for ancient Paleozoic temperatures              and environments.
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