Department of Applied Science, Okayama University of Science
Abstract
Chugoku District is characterized by gently undulated mountains in which three flatland levels are differentiated. The largest flatland level, the so called "Kibi Highland Level", is a presumed elevated peneplain. Deep weathering of different kinds of rocks and sediments in Chugoku District, which has been noted for many years, was found to be tightly associated with the flatland levels
