Fig. 5From: Paleomagnetic direction and paleointensity variations during the Matuyama–Brunhes polarity transition from a marine succession in the Chiba composite section of the Boso Peninsula, central JapanExamples of the repeated thermomagnetic analysis in air for selected specimens: a is for TBH11 from 0.55 m below the Byk-E bed; b is for TBH31 from 2.55 m below the Byk-E bed. For each analysis, the destination temperature is increased progressively from 300 to 500 °C at 50 °C increments. Numbers shown in the panels inside of the diagrams a and b indicate the destination temperatures in °CBack to article page