Chronology of the fluvial terrace surfaces in the Kitakami Lowland, northeast Japan, and fluctuations of debris supply during the late Pleistocene

Abstract

The Ou Range, the backbone of northeast Japan which is <1000m high except for sporadic Quaternary volcanoes and some peaks, has shed debris eastward into the Kitakami Lowland during the Quaternary. This paper, after establishing the classification and correlation of the fluvial terrace surfaces in the Kitakami Lowland in stratigraphic relation with a number of marker tephras, discusses fluctuations of debris supply during the Late Pleistocene in eastern Japan. -from English summary