3.2. VGP’s and Pole Migration
The virtual geomagnetic pole (VGP) shows the position of the geomagnetic paleopole (Lanza and Meloni, 2006). VGP’s latitudes from this data set show fluctuations in the Matuyama section which are similar with the data from Yamazaki and Oda (2001) (Fig. 7a, b). These values indicate 90o change from Matuyama to Brunhes transition as a result of pole migration (Fig. 7a). 75° change in VGP values at 11.8 cm depth (Fig. 7a) shows the precursor of the reversal according to Valet et al. (2012) (Fig. 7c). In addition, we plotted the VGP path for Matuyama, Brunhes, and transition sections using VGP latitudes and longitudes based on characteristic remanent magnetization (ChRM) directions detected in our samples (Fig. 8). VGP locations for the Matuyama section are in the southern hemisphere (Fig. 8). During the transition from reversed to normal polarity, the magnetic pole migrates from southern to northern hemisphere (Fig. 8). After the geomagnetic transition, paleopoles fluctuate around the geographic north pole (Fig. 8). This VGP path of pole migration during the transition from the southern to northern hemisphere compares well with the Matuyama-Brunhes transition found by Okada et al. (2017) recorded in marine sediments near Japan (Fig. 8).