Research Interests

My academic and technical background in stable isotope and minor-element geochemistry forms the foundation for my specialization in stable isostope and elemental analytical chemistry. I manage the USF Paleoclimatology, Paleoceanography and Biogeochemistry Laboratory under the direction of Drs. Terry Quinn and David Hollander. Currently, the lab houses two ThermoQuest Delta+XL stable isotope ratio mass spectrometers capable of measuring dD, d13C, d15N and d18O in a variety of inorganic and organic sample types. The lab also houses a Perkin-Elmer 4300DV ICP-OES capable of simultaneously measuring a wide suite of trace, minor and major elemental concentrations in sub-mL volume aqueous samples.

In addition to managing the operation and maintenance of the lab instrumentation and coordinating the development of new methods and approaches to geochemical problems, I maintain the laboratory computer systems (Mac, PC and Linux), participate in field-based research, and maintain the PPB website.

Publications & Presentations

Guilderson, T.P., D.P. Schrag, E.A. Goddard, M. Kashgarian, and E. Druffel, 2001, Subtropical north Pacific surface water radiocarbon history in a high-resolution coral record, submitted to Journal of Physical Oceanography, March 2001.

Guilderson, T.P., G.M. Wellington, B.K. Linsley, D.P. Schrag, E.A. Goddard, and M. Kashgarian, 2001, Southwest subtropical Pacific surface water radiocarbon in a high-resolution coral record, Radiocarbon, v.42, p. 249-256.

Railsback, L.B., E.A. Goddard, et al., 1996, A survey of the major-element geochemistry of Georgia groundwater, Southeastern Geology, v.36, p. 99-121.