@article{oai:nagoya.repo.nii.ac.jp:00011590, author = {奥野, 充 and Okuno, Mitsuru and 藤沢, 康弘 and Fujisawa, Yasuhiro and 田島(草薙), 恵 and Husanagi-Tajima, Megumi and 宇井, 忠英 and Ui, Tadahide and 中村, 俊夫 and Nakamura, Toshio and 小林, 哲夫 and Kobayashi, Tetsuo}, journal = {名古屋大学加速器質量分析計業績報告書}, month = {Mar}, note = {In order to determine an age of the last eruption at Yufu-dake volcano (northeastern Kyushu, Japan), we performed AMS radiocarbon dating of two charcoal fragments in the Nonokusa and Ikeshiro pyroclastic-flow deposits. The obtained ^<14>C dates are 2330±80 yr BP (NUTA-4495) and 2090±80 yr BP (NUTA-4491), respectively. Two ^<14>C dates agree within two-sigma errors. These are also consistent with AMS ^<14>C dates in the piston core in Beppu Bay. On the other hand, the ^<14>C date of 4060±150 yr BP (GaK-18379) for the Ikeshiro pyroclastic-flow deposit is significantly older than these dates., タンデトロン加速器質量分析計業績報告 Summaries of Researches Using AMS 1998 (平成10)年度}, pages = {199--205}, title = {由布岳火山,池代および野々草火砕流堆積物中の炭化木片の加速器<14>^C年代}, volume = {10}, year = {1999} }