Pleistocene Planktic Foraminiferal Events in the Northwest Pacific Near Japan

Abstract

Using an age model based on magnetostratigraphic and tephrostratigraphic control points, we assigned ages to two planktic foraminiferal events from the Pleistocene sequence in the northwest Pacific: the first occurrence of Neogloboquadrina pachyderma at 1.25 ± 0.04 Ma and the last occurrence of Neogloboquadrina inglei at 0.73 ± 0.05 Ma.