Assistant Professor of Earth and Planetary Sciences
My research focuses on the habitability of the early Earth and how it was affected by crustal processes and changing surface environments. The study of the early Earth requires a clear understanding of present-day sedimentary processes as well as an appreciation of the non-uniformitarian character of the early Earth. My research integrates multidisciplinary approaches by applying stratigraphic, provenance and geochemical analyses paired with detailed knowledge of complex geology at outcrop- to basin-scale. Specifically, my contributions to the field focus on: (1) Furthering our understanding of the formation of crust during the Hadean and Archean, (2) evaluating processes of early life recorded in the rock record and studying the influence of impact-related environmental perturbations on the biosphere, and (3) characterizing the poorly understood tectonic processes in the Archean.
Clare Boothe Luce Assistant Professor of Earth and Planetary Sciences
Accretion, core formation, and composition of the deep interiors of Earth and other terrestrial planets. She combines high-pressure, high-temperature mineral physics experiments with planetary-scale modeling.
Fischer received a B.A. in Earth and Planetary Sciences and Integrated Science from Northwestern University in 2009, and a Ph.D. in Geophysical Sciences from the University of Chicago in 2015.
Department Chair; Murray and Martha Ross Professor of Environmental Sciences; Harvard College Professor
Ann Pearson is the Murray and Martha Ross Professor of Environmental Sciences. Her research focuses on applications of analytical chemistry, isotope geochemistry, and molecular biology to biochemical oceanography and Earth history.
Through study of the “how, when, and why” of microbial processes, her work yields insight about environmental conditions on Earth today, in the past, and about potential human impacts on our future. Recent projects have focused on the carbon and nitrogen cycles and on pathways of lipid biosynthesis.
Pearson received a Fellowship for Science and Engineering from the David and Lucille Packard Foundation in 2004, a Radcliffe Institute Fellowship in 2009, and was named a Marine Microbiology Initiative Investigator of the Gordon and Betty Moore Foundation in 2012. She holds a Ph.D. in Chemical Oceanography from the MIT/WHOI Joint Program in Oceanography, where she was awarded the C. G. Rossby Award for Best Dissertation in the Program in Atmospheres, Oceans, and Climate; and a B.A. in Chemistry from Oberlin College.
Sturgis Hooper Professor of Geology; Professor of Environmental Science and Engineering; Director of the Harvard University Center for the Environment; Director of the Science, Technology, and Public Policy Program, HKS
Daniel P. Schrag is the Sturgis Hooper Professor of Geology at Harvard University, Professor of Environmental Science and Engineering, and Director of the Harvard University Center for the Environment.
Schrag studies climate and climate change over the broadest range of Earth history. He is particularly interested in how information on climate change from the geologic past can lead to better understanding of anthropogenic climate change in the future. In addition to his work on geochemistry and climatology, Schrag studies energy technology and policy, including carbon capture and storage and low-carbon synthetic fuels.
From 2009-2017, Schrag served on President Obama’s Council of Advisors on Science and Technology. Among various honors, he is the recipient of the James B. Macelwane Medal from the American Geophysical Union and a MacArthur Fellowship. Schrag earned a B.S. in geology and geophysics and political science from Yale University and his Ph.D. in geology from the University of California at Berkeley. He came to Harvard in 1997 after teaching at Princeton.
Professor of Earth and Planetary Sciences Director of Graduate Studies
Isotope geochemistry and historical geobiology. Re-animating ancient ecosystems and ocean chemistry using stable isotope systems, chemical speciation techniques, modern microbial experiments (for calibration) and theoretical considerations.
Fisher Professor of Natural History; Professor of Earth and Planetary Sciences, Emeritus
Andy Knoll is the Fisher Professor of Natural History at Harvard University. He received his B.A. in Geology from Lehigh University in 1973 and his Ph.D., also in Geology, from Harvard in 1977.... Read more about Andrew Knoll
Talk Title: Promises and Pitfalls of Paleoredox Proxies in Carbonate Rocks
Abstract: The redox state of the oceans strongly influences organic carbon burial, habitability for marine biota, and biogeochemical cycling of nutrients and critical redox-sensitive elements. There are various methods for reconstructing oxygenation and deoxygenation through Earth history: Of these,...
Overall, my research interests are in constraining the timescales and conditions of planetesimal formation and evolution via elemental, isotopic and petrographic analyses of meteorites. About Myriam Telus
On Monday, Professor Andrew Knoll was awarded the Crafoord Prize in Geoscience from the Royal Swedish Academy of Sciences for depicting the first three billion years of life on earth through studies of microfossils. A video about Professor Knoll's work and the prize can be found by clicking this link.
Please follow this link to a Science Magazine article featuring some great research by Roger Fu's group. The research has been featured in popular media as well including CNN and National Geographic. Congratulations to Roger and his team!
Episodic Plate Motion and Thermal Structure in Subduction Zones Caused by Slab Folding in the Transition Zone
Abstract: Although most present-day subduction zones are in trench retreat, plate reconstructions and geological observations show that individual margins experience episodes of advancing, retreating or stationary trench motion with time-variable subduction rates. However, most laboratory and numerical simulations predict steady plate velocities and sustained trench retreat unless the slab experiences folding in the...