Reconstruction of changes in the Southern Ocean OverturningCirculation using radiogenic Pb and Nd isotopes in marine sedimentsand a Fe-Mn crust for the past 19 Ma
Radiogenic lead (Pb) and neodymium (Nd) isotopes are sensitive paleoceanographic proxies for the reconstruction of ocean circulation changes in the past. The goal of this dissertation is to develop improved approaches to recover past seawater Pb and Nd isotope signals from marine sediments and ferromanganese (Fe-Mn) crust, and apply it for tracing water mass sourcing changes in the Southern Ocean at (sub-)millennial resolution.
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