EAPS DLS Department Highlight Series: Roger Summons

Roger Summons
Wednesday, October 27, 2021 - 4:00pm to 5:00pm
Hybrid - 54-915 and Zoom

The Geological Record of Photosynthetic Pigments


Photosynthesis makes the world go around. Chlorophylls and carotenoids are the two key types of pigment molecules involved in harvesting sunlight for photosynthesis which have some potential to be preserved in the sedimentary record. In this talk I will focus on what we have been learning over the years concerning fossilization of carotenoids and how these molecules might tell us about modern and ancient sedimentary environments, the photosynthetic microbes therein and a stark transformation in marine phytoplankton that occurred across the Proterozoic-Phanerozoic transition.

About this Series

The Department Lecture Series at EAPS at MIT is a series of Weekly talks given by leading thinkers in the areas of geology, geophysics, geobiology, geochemistry, atmospheric science, oceanography, climatology, and planetary science. For more information please contact: Maggie Cedarstrom, maggie84@mit.edu.