Olivier Marchal’s research focuses on ways to understand the circulation of the ocean through chemical tracers from the water column and seafloor sediments. He works to overcome barriers between physical oceanographers, paleoceanographers, and marine geochemists, who “don’t talk to each other much,” he said. Marchal grew up in Tournai, Belgium. He earned a bachelor’s degree at the Free University of Brussels, two master’s degrees at the University of Liège, and a doctorate degree at the University Pierre et Marie Curie of Paris. He spent five years as a postdoctoral scholar at the University of Bern. He lives in Falmouth with his wife and three children.