Biogeochemical and micropaleontological reconstruction of past oxygenation and redox conditions in coastal upwelling systems


The goal of this subproject was the quantitative reconstruction of past oxygen levels and their controlling processes in the Peruvian upwelling cell over the past 20,000 years. This goal was achieved by development of a unique set of geochemical and micropaleontological proxies for past oxygen levels and redox conditions in the bottom and pore waters of the sediments, which was combined with isotopic proxy information for changes in silicate utilisation in the surface waters (and thus upwelling intensity) and water mass mixing obtained from the same sediment samples. 


Prof. Martin Frank                                Prof. Anton Eisenhauer
Tel.: +49 431 600 2113                        Tel.: +49 431 600 2282
mfrank(a)                            aeisenhauer(a)