[ESS] Gavin Piccone (Brown)

“Unveiling the Dynamic Evolution of the Antarctic Ice Sheet Through Sedimentary Rock Archives”

Understanding the evolution of the Antarctic Ice Sheet is critical for reconstructing past sea level change and predicting future ice sheet behavior. In this talk, I present new geochemical and geochronologic data from Antarctic sedimentary rocks that provide direct constraints on the δ¹⁸O of Antarctic ice and reveal dynamic ice sheet behavior on millennial to million-year timescales. Paired isotope measurements and radiometric dating capture ice sheet evolution extending from the late Miocene to the late Pleistocene. These data offer novel insights into the isotopic evolution, spatial footprint, and climatic sensitivity of the Antarctic Ice Sheet across diverse climate states.

Earth Science Seminar —

Lecture portion of the EAPS graduate-level class 12.571, covering current research in geophysics, geology, geochemistry, and geobiology. All members of the MIT community are welcome to join for presentations by guest speakers, held approximately every two weeks during the term.

Contact: earth-science-seminar-info@mit.edu