Roger Nicholas Bryant

Projects would most likely involve the application of isotopic or trace element geochemistry of marine sedimentary archives to understand past climate variations. This could include the development of new environmental proxies, for example in foraminifera or coccolithophores, and the refinement of methods to measure those proxies. A particular interest is how our understanding of paleoclimate and the workings of the Earth system has been shaped by post-depositional processes (e.g., diagenesis) in marine sediments. Environmental parameters of most interest to me are dissolved [O2], pH, [DIC]. Time intervals of interest include Pleistocene glacial cycles, the Eocene, the Cretaceous, and even deeper intervals of time with relevance to climate science. My laboratory uses mostly ICP-MS and MC-ICP-MS to make geochemical analyses, but we also collaborate with other facilities to do SIMS and X-Ray absorption spectroscopy.