@article{oai:nagoya.repo.nii.ac.jp:00011522, author = {村山, 雅史 and Murayama, Masafumi and 成田, 尚史 and Narita, Hisashi and 佐藤, 昌泰 and Sato, Masayasu 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 = {A gravity core (246cm) was obtained from the central part of Funka Bay at lat. 42° 16.2' N, log. 140° 36.0' E and water depth of 91m during cruise of the R/V Oshoro-Maru. The core is composed mainly of homogeneous, olive grayish colored silty mud which shows two intercalated ash layers at depths of 0-35cm and 202-227cm. Except for these two ash layers, no turbidity current or slumping related structures were identified based on sedimentological (visual and soft X ray) observation. The core were examined using AMS ^<14>C dating measurement to reconstruct the paleoenvironment in this area. The result of AMS ^<14>C dating for six shell fragments indicates that the average sedimentation rate is approximately >0.9mm/yr., タンデトロン加速器質量分析計業績報告 Summaries of Researches Using AMS 1997 (平成9)年度}, pages = {228--235}, title = {噴火湾コア(ST.30)の堆積年代とその意義}, volume = {9}, year = {1998} }