Fig. 8From: Matuyama–Brunhes geomagnetic reversal record and associated key tephra layers in Boso Peninsula: extraction of primary magnetization of geomagnetic fields from mixed magnetic minerals of depositional, diagenesis, and weathering processesResults of first order reversal curve (FORC) measurements for 12 selected samples. Specimens 30-4 (e) and 76-1 (j) are tephra C and tephra A, respectivelyBack to article page