Fig. 1

Geographic positions of ODP Hole 925B investigated during the present study and of DSDP Sites 502 and 503 mentioned in the text. Dotted, hatched, and shaded areas indicate relative (%) abundances of G. menardii in sediment core tops after Bé (1977). Dashed lines with arrows represent most relevant surface ocean currents (AC Agulhas Current and Agulhas Retroflection, ARs Agulhas warm core rings, BC Benguela Current, SEC South Equatorial Current, BRC Brazil Current, SAC South Atlantic Current, SECC Southern Equatorial Counter Current, NBC North Brazil Current, NEC North Equatorial Current, NECC North Equatorial Counter Current, CC Caribbean Current, FC Florida Current, GS Gulf Stream). Currents in partem after Wefer et al. (1998), map with frequencies of G. menardii taken from Fig. 4 in Broecker and Pena (2014)