@article{oai:nagoya.repo.nii.ac.jp:00019799, author = {岡, 孝雄 and 近藤, 務 and 中村, 俊夫 and 星野, フサ and 安井, 賢 and 井島, 行夫 and 関根, 達夫 and 米道, 博 and 宿田, 浩司 and 山崎, 芳樹 and 乾, 哲也 and 奈良, 智法 and Oka, Takao and Kondou, Tsutomu and Nakamura, Toshio and Hoshino, Fusa and Yasui, Satoshi and Ijima, Yukio and Sekine, Tatsuo and Yonemichi, Hiroshi and Shukuda, Koji and Yamazaki, Yoshiki and Inui, Tetsuya and Nara, Tomonori}, journal = {名古屋大学加速器質量分析計業績報告書}, month = {Mar}, note = {Two drilling cores (46 meters core of AZK-1 and 25 meters core of S60Kー1), in the lowland along the downstream of Atsuma River, southern Hokkaido, were investigated based on lithologic observation, microbiostratigraphy (pollen and diatom), tephrochronology and radiocarbon dating (14C dating;AMS). AZK-1 drilling hole, located in the river mouth area of Atsuma, is composed of AZK-1-1(last inter-glacial stage deposits), AZK-1-2 (buried terrace deposits, fluvial), AZK-1-3 (upper part of so-called “Chuseki formation") and AZK-1-4 (artificial bank) upward stratigraphically. 60SK-1 drilling hole, located in the town area of Kamiatsuma, is divided thirteen lithological units. All units of 60SK-1 drilling hole are compose the upper part of so-called “Chuseki formation". Diatom analysis is very useful for the study of “Chuseki formation" under the influence of sea water especially. The stage of brackish water of AZK-1 core is post-era, while one of 60SK-1 core is about five thousand years ago., 名古屋大学年代測定総合研究センターシンポジウム報告}, pages = {111--124}, title = {北海道厚真川下流域の後期更新世~完新世の古環境変遷}, volume = {25}, year = {2014} }