摘要：Lake Suigetsu has a long history in Quaternar y research. In 1991, a group of Japanese researchers, led by Prof. Yoshinori Yasuda of the International Research Center for Japanese Studies (IRCJS, Japan), re -covered a couple of >10 m long piston cores from the lake and found that the lower parts of those cores were an-nually laminated (varved; Fig. 1). This marked the initiation of varve studies in Japan
