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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: 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 processes

Fig. 1

SEM analyses of iron oxide and sulfide minerals. a Back scatter electron image taken from a thin section of Sample 77A. b S, c Fe, d T, and e O images obtained by EDS analysis within the area shown by a red rectangle in a. f Kikuchi pattern obtained for point A in a by EBSD analysis, and g those with best interpreted Kikuchi bands (pink lines), their midlines (yellow broken lines) and index numbers (digits) for titanomagnetite. h Kikuchi pattern obtained for point B in a, and i those with best interpretations for pyrite

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