Mailing address: PO Box 208109, New Haven CT 06520-8109
Street address: 210 Whitney Ave., New Haven CT 06511
My research broadly focuses on the evolution of global biogeochemical cycles through Earth’s early history. I integrate field, petrographic, geochemical and laboratory experimentation with numerical models, in order to test hypothesis of global change in deep time that concern the early co-evolution of microbial life and its environment. One central goal of my work is to reconstruct ancient ecosystems by fingerprinting geochemical signals that are unique to specific metabolisms within ancient sedimentary rocks. Another critical theme of my research is to better understand both the physical and chemical mechanisms that gives rise to planetary climate stability, particularly focusing on the portion of Earth’s thermostat involving authigenic processes (biotically and abiotically mediated) that occur within marine sedimentary porewater systems during early diagenesis.