Continuous magnetic records across the MBB boundary at Lingtai (central CLP). The directional behaviour of the MBB transitional polarity interval (given by ChRM declination, inclination (local geocentric axial dipole inclination = 54°) and VGP latitudes, respectively) is characterized by seven full polarity changes in both data sets. Two intermediate VGP positions are located at depths 61.94 m and 62.20 m in set Y. A slight stratigraphic shift of the transitional directions is seen between thermally and AF demagnetized data. Low field susceptibility (χ), frequency dependence of susceptibility (F-factor resulting from measurements at two frequencies, 0.47 kHz and 4.7 kHz), coercivity Hc (dotted line), coercivity of remanence Hcr (solid line), saturation magnetization Ms (maximum field of 300 mT; dotted line) and saturation remanence Mrs (solid line). All rock magnetic data are from set Y, except the dotted susceptibility curve, which is from set A. Since both susceptibility curves coincide, stratigraphic consistency of both sample sets is demonstrated.
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