A6: Progress from new ocean isotope proxies

(F. von Blanckenburg, Hannover; H. Strauss, Münster; A. Eisenhauer, M. Frank, Kiel)

We are experiencing the development of new tools that are suited to identify processes and quantify ocean mass fluxes, redox reactions, continental inputs, weathering of sources, and microbial activity in the oceans. The new systems are »non-traditional« stable isotopes (Ca, Mg, Si, Fe, Cr, Cu, Zn), novel applications of »traditional« stable isotopes (H, O, N, S) such as mass-independent S isotope fractionation, or new findings from radiogenic (Nd, Pb, Hf) or cosmogenic (10Be, 14C, 36Cl, 53Mn) isotopes. We invite contributions that explore these new developments in the modern ocean, in paleoceanographic applications, and in the evolution of the oceans over geologic time.