Fig. 7
From: Review of the Early–Middle Pleistocene boundary and Marine Isotope Stage 19
Differing subdivisions of the interval comprising Marine Isotope Substages 19b and 19a illustrated using the isotope record of the Chiba composite section (CbCS; Haneda et al. 2020b). (a) Four millennial-scale benthic isotope oscillations (MIS 19a-o1 to MIS 19a-o4) represented in the benthic foraminiferal record by lighter values exclusively within MIS 19a. Four stadials (MIS 19-s1 to MIS 19-s4) and four interstadials (MIS 19-i1 to MIS 19-i4) reflect more localized millennial-scale paleoenvironmental alternations across MIS 19b–a, in this case characterized by the planktonic foraminiferal record. (b) The labelling scheme of Haneda et al. (2020b) based on the planktonic foraminiferal record of the CbCS. (c) The labelling scheme of Nomade et al. (2019) based on the benthic foraminiferal record of Montalbano Jonico, Italy