Fig. 5From: A full sequence of the Matuyama–Brunhes geomagnetic reversal in the Chiba composite section, Central JapanSampling location in the upper part of the Yoro River section. Green and blue circles indicate sampling sites for paleomagnetic and oxygen isotope analyses, respectively. Sample codes of samples collected by previous studies (Suganuma et al. 2018; Haneda et al. 2020) and this study are shown by black and red letters and numbers, respectivelyBack to article page