High-resolution analysis of lake sediments collected from Lake Harutori in Kushiro City, eastern Hokkaido, Japan

Nakanishi, Toshimichi; Nanayama, Futoshi*; Katsuki, Kota*; Yamada, Keitaro*

no journal, , 

The Holocene sediments of Lake Harutori in Kushiro City, eastern Hokkaido, are mainly composed of annually laminated sediments, organic mud layers with plant fragments, sand layers with shell and plant fragments and tephra layers. Fluctuations of the marine reservoir effect of radiocarbon and the information on the paleo-tsunami caused by the huge interplate earthquakes were identified by the high-resolution sedimentological analysis.