Abstract
The timing of the glacial advances and volcanic activities on Mt. Tateyama (3,015m) and Tateyama Volcano in the Hida Range in central Japan during the late stade of the last glacial period were clarified based on three moraines and their stratigraphic relationships with volcanic ejecta. The late stade was subdivided into Tateyama Stades I (just before 29cal ka), II (18-20 10Be ka) and III (10-11 10Be ka). The glaciers during the late stade attained their maximum advances in Tateyama Stade I and retreated with time. The maximum glacial advances during the late stade were caused just before 29cal ka in MIS 3 on the high mountains in the Hida Range simultaneously. Between Tateyama Stades I and II, the Tateyama Volcano gave rise to phreatic explosions that fragmented a lava layer overlying explosion crater. The fall of the lava fragments, however, did not trigger off the start of the glacial retreat and advance on Mt. Tateyama.
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