My research interests are rather broad, including marine geology, geochemistry (organic and inorganic), (foraminiferal) biomineralization and the reconstruction of past climates. Recent projects focus on the development of proxies for reconstruction of past ocean carbon speciation, salinity and temperature. These proxies often involve the incorporation of minor and trace elements in foraminiferal carbonate shells and hence require a better understanding of the processes involved (i.e. biomineralization). The formation of calcium carbonate (and dissolution) and how this affects the global carbon cycle is another focal point in my research. The development and application of new analytical methods has been central in much of my research and also currently plays an important role in ongoing projects looking into the stable isotope analyses of minor elements in foraminifera (la-MC-ICP-MS) and stable carbon isotope analyses of organic microfossils (la-nC-GC-IRMS).
Main areas of expertise include the Arabian Sea, Mediterranean, North Atlantic, Gulf of Mexico, Red Sea and Indian Ocean. Chief scientist on sea-going expeditions to the northern Indian Ocean, Mediterranean, Black Sea and North Atlantic, shipboard participation in many other areas. More on my research interests and motivation can be read in my inaugural lecture here.