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Table 2 Summary of the M–B boundary in the Chiba composite section

From: A full sequence of the Matuyama–Brunhes geomagnetic reversal in the Chiba composite section, Central Japan

Section/Demag. method Stratigraphic distance from the Byk-E (m) Age (ka)1 Reference
Start End Mid-point Start End Mid-point Duration
Yoro-Tabuchi/hybrid 1.07 2.09 1.58 772.96 771.79 772.38 1.17 This study
Yanagawa (and Chiba)/ThD 0.35 1.25 0.80 773.75 772.73 773.24 1.02 Suganuma et al. (2015)
Chiba/hybrid 0.35 1.85 1.10 773.75 772.06 772.91 1.69 Okada et al. (2017)
TB2 sediment core2/ThD 0.68 1.23 0.96 773.37 772.76 773.07 0.61 Hyodo et al. (2016)
Average 0.6 1.6 1.1 773.5 772.3 772.9 1.1  
SD-1σ 0.3 0.4 0.3 0.4 0.5 0.4 0.4  
  1. 1Age model of Suganuma et al. (2018) is used to calculate the ages of the M–B boundary and the durations
  2. 2Depth scale of the TB-2 sediment core is converted into thickness scale in the Chiba composite section based on the lithology and tephrostratigraphy