[SGL38-P02] Planktonic foraminiferal faunal changes around the Matuyama–Brunhes boundary and its paleoceanographic implications in the Kuroshio domain off Honshu, Japan
Keywords:planktonic foraminifera, paleoceanography, Pleistocene, MIS19
In this study, we used core samples of IODP Site C0001 drilled off the Kii Peninsula. The present oceanographic setting at the study site is nearby the northern edge of the Kuroshio domain associated constantly with a cold eddy. A total of 47 samples were collected for this study from cores 6H-2 to 5H-6 at an interval of 10 cm (about 1.7 ka in time resolution). Age of each sample was determined by the oxygen isotope stratigraphy. According to the results, we have significantly observed two peaks of G. inflata in MIS19. The temporal distribution pattern in relative abundance of G. inflata at Site C0001 is similar to that at TB2. With respect to the current age model of Site C0001, the faunal change of this site might be slightly delayed from that of TB2.