Dr. Dalton Hardisty is a paleoceanographer whose research focuses on reconstructing the distribution of redox-sensitive elements, mostly prominently iodine, in ancient seawater and links to oxygen availability in the geological past. This work includes placing both proxy constraints on ancient marine elemental cycles through measurements in sedimentary archives as well as experimental controls on processes driving these elemental cycles in modern seawater. Dalton is an Assistant Professor in the Department of Earth and Environmental Sciences at Michigan State University.

Dalton’s interests on this cruise are to measure rates and determine reaction pathways and mechanisms of the reduction and oxidation of iodine both within and outside of the oxygen minimum zone. Together, Dalton and co-chief Andrew Babbin will also test potential relationships between the cycling of iodine and nitrogen in oxygen deficient waters. This work will provide important insights into the distribution of iodine in both modern and ancient low oxygen settings.

Dalton received a B.S. and M.S. from Indiana University and a Ph.D. in Earth Sciences from the University of California, Riverside. He was a Postdoctoral Scholar at Woods Hole Oceanographic Institution.