@article{oai:nagoya.repo.nii.ac.jp:00011688, author = {永迫, 俊郎 and Nagasako, Toshiro and 奥野, 充 and Okuno, Mitsuru and 新井, 房夫 and Arai, Fusao and 松下, まり子 and Matsushita, Mariko and 松島, 義章 and Matsushima, Yoshiaki and 松原, 彰子 and Matsubara, Akiko and 森脇, 広 and Moriwaki, Hiroshi and 中村, 俊夫 and Nakamura, Toshio}, journal = {名古屋大学加速器質量分析計業績報告書}, month = {Mar}, note = {This study discusses the Holocene landscape evolution of the Kimotsuki River basin, Osumi Peninsula, Southern Kyushu Volcanic Field, Japan, with reference to volcanic events. The type stratigraphy of alluvial deposits in lower reaches is constructed by synthetic analyses about the Kushira-yoshimotobashi core. While most hillslopes were stabilized by 6.5 ^<14>C ka and sediment supply from upstream areas was reduced, leading to the widespread deposition of peat layers in the late Holocene, the Holocene transgression resulted in coastal erosion along the cliffs of the non-welded A-Ito ignimbrite and so sediment production in coastal zones increased during 7-5 ^<14>C ka. In addition, K-Ah and Ik-P tephras which fell in the mid-Holocene were re-transported to the lowland. These deposits contributed to infilling of the inner bay and lagoons. The past major volcanic eruptions affected land surface environments discontinuously and episodically, lasting for relatively short periods, although they played important roles in sediment supply. They are thus an abrupt and brief driving force for landscape evolution., タンデトロン加速器質量分析計業績報告 Summaries of Researches Using AMS 2001 (平成13)年度}, pages = {203--218}, title = {大隈半島における完新世の環境変化とそれに与えた火山噴火の影響}, volume = {13}, year = {2002} }