Study on the development of Kanto Plain by tephrochronological survey of underground geology

点击翻译按钮获取中文摘要

The purpose of this study is establishing the formation model of Kanto Plain by tephrochronological survey of underground geology. Sedimentological description of boring cores collected in Machida-south, Machida, Inagi, Tama and Mitaka was carried out, and tephra identification was attempted. Early Pleistocene tephras, NG-Yr, KK, Ym, Kd23B, Kd24, Horinouchi-1^<st>, Omn-Kd25, Tsuike were recognized, and newly identified tephras were detected in several different cores. By using identified tephras, geological structures and deformation were evaluated, and the formation model of Kanto Plain was considered.