Vegetational Changes since the Last Glacial Period in the Mountains around Liyama Basin, Central Japan

摘要

Three peat cores were obtained by boring surveys for pollen analysis from the Kitadobu bog, the Chayaike bog, and the Numanohara bog to reveal the vegetational changes since the Last Glacial Period in the Mountains around Iiyama basin, central Japan. Marker tephras AT, K-Ah, On-Kt, As-K, My-A, and My-Ot were recognized in the cores. It is clear that the deposits of the Chayaike bog were produced since the beginning of the Last Gla- cial Period.