His expertise is in the fields of geochemistry, oceanography, and paleoclimate, and his research focuses on the signal transfer between the modern atmosphere and oceans to the geological record, as well as the reconstruction of past climate changes through the investigation of geochemical and sedimentary processes in marine and lacustrine archives.  Accordingly, research in the Torfstein group combines between time series of modern terrigenous fluxes and biogeochemical cycles in the oceans (e.g., the "Red Sea Dust, Marine Particles and Seawater Time Series" (REDMAST) project), and late Quaternary marine and lacustrine records.