Mailing address: PO Box 208109, New Haven CT 06520-8109
Street address: 210 Whitney Ave., New Haven CT 06511
I study the redox evolution of the Earth’s atmosphere - ocean system through time, and the relationship between environmental changes and the biosphere. I combine field geology, sedimentology, and trace metal geochemistry to tackle these problems, primarily in deep time. Recently I have focused on the use of novel metal paleoredox proxies such as chromium and uranium isotopes as a tool to improve our understanding of oxygen availability through Earth’s early history and answer questions about the relationship between environment and biotic innovation.