Supplement to: Glock, Nicolaas; Eisenhauer, Anton; Liebetrau, Volker; Wiedenbeck, M; Hensen, Christian; Nehrke, Gernot (2012): EMP and SIMS studies on Mn/Ca and Fe/Ca systematics in benthic foraminifera from the Peruvian OMZ: a contribution to the identification of potential redox proxies and the impact of cleaning protocols. Biogeosciences, 9, 341-359, https://doi.org/10.5194/bg-9-341-2012