About Arimoto Jun
About Department of Earth Science, Graduate School of Science, Tohoku University, Aramaki Aza Aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
About Takashima Reishi
About The Center for Academic Resources and Archives, Tohoku University Museum, Tohoku University, Aramaki Aza Aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
About Nishi Hiroshi
About The Center for Academic Resources and Archives, Tohoku University Museum, Tohoku University, Aramaki Aza Aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
About Yamanaka Toshiro
About Faculty of Science, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
About Orihashi Yuji
About Earthquake Research Institute, The University of Tokyo, Bunkyo-ku, Tokyo 113-0032, Japan
About Jo Shota
About Department of Earth Science, Graduate School of Science, Tohoku University, Aramaki Aza Aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
About Yamamoto Koshi
About Department of Earth and Environmental Sciences, Graduate School of Environmental Studies, Nagoya University, Chikusa, Nagoya 464-8601, Japan
About Umetsu Keita
About Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Natsushima-cho 2-15, Yokosuka 237-0061, Japan
About Cretaceous Research
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About stratigraphy (sequence of layers)
About carbon isotope
About fossil
About Cretaceous Period
About ICP-MS analysis
About Northwest Pacific Ocean
About biostratigraphy
About geologic time
About ocean
About North America
About clastic sediment
About continental margin
About Tohoku District
About tuff
About Quaternary Period
About Upper Cretaceous
About Kuji Group
About Non-marine
About Shallow marine
About Carbon isotope stratigraphy
About U-Pb dating
About Mesozoic
About 炭素同位体
About 層序
About Pb
About 放射年代測定
About 東北日本
About 層群
About 上部白亜系
About 砕屑岩
About 堆積年代
About 制約