Records of major and minor transgression and regression events in the Paleo-Sea of Japan during late Cenozoic

  • Iwao Kobayashi Deptartment of Geology, Faculty of Science, Niigata University, 8050 Nino-cho, Ikarashi, Niigata 950-2181, Japan.
  • Osamu Takano Technology Research Center, Japan National Oil Corporation, 2-2, Hamada 1-chome, Mihama-ku, Chiba 261-0025, Japan
Keywords: transgression, regression, late Cenozoic, Niigata, Sea of Japan.


Late Cenozoic strata distributed along the coastal region of the Sea of Japan are a good recorder of transgression and regression events in the Paleo-Sea of Japan. The main events are recognized from many stratigraphical horizons of Niigata late Cenozoic formations. They are early/middle Miocene transgression; 2) latest Miocene / early Pliocene events; 3) late Pliocene to early Pleistocene transgressions and regressions; 4) middle to late Pleistocene transgressions and regressions; and 5) Holocene It is thought that the events were related to global sealevel changes, crustal movements and local landform changes.