2019-2020 Five College Geology Lecture Series speaker Caroline L Peacock, Professor of Biogeochemistry, Royal Society Wolfson Research Merit Award Holder, School of Earth and Environment. University of Leeds, Leeds, UK will give a talk titled "Mineralogical Controls on Earth's Climate."
Trace metals are essential for life and the concentration of trace metals in the surface oceans regulates photosynthetic activity, which in turn regulates the drawdown of atmospheric carbon dioxide and ultimately climate. The processes governing the concentration of trace metals in the
oceans are complex but in most cases the ocean sediments provide an important sink for these bio-essential elements, locking up trace metals with sediment minerals. This talk will introduce the importance of trace metals in the ocean system, the importance and peculiarities of marine
sediment minerals, the processes by which trace metals are scavenged by these intriguing phases, and what happens to trace metals as these phases change during sediment diagenesis. We will see that the global scale cycling of trace metals in the oceans is governed by molecular
scale interactions between trace metals and minerals.
This event is free and open to the public.
Monday, September 16, 2019 at 7:00pm to 9:00pm