Abstract
In the northwestern shore of Lake Tonle Sap which lies in central Cambodia, there are many archaeological sites during Angkor kingdom era, and human activities, for example engineering works for temple construction, are expected to have disturbed the environment on this area. However, detailed studies of depositional environments have not been carried out. The purpose of this study is to examine the landforms in this area by using aerial photos and SRTM3 data, and the development of landforms including historic times by describing all the core bore-hole data. This area can be classified into alluvial fans, sand ridges, two lacustrine terraces and lacustrine marsh, and the results suggest that some natural levees on lacustrine terraces were formed by changes of the river course in Angkor period.
