About SATO TOKIYUKI
About 秋田大 工学資源
About CHIYONOBU SHUN
About 東北大 大学院理学研究科
About Coccolithus
About microfossil
About oceanic structure
About euphotic zone
About Indian Ocean
About Central Pacific Ocean
About biological product
About Tertiary Period
About marine environment
About plan
About calcareous nannofossil
About tropical Pacific
About microorganism
About protozoa
About Mastigophora
About Phytomastigophora
About Discoaster
About offshore drilling program
About Equatorial PacificOcean
About photic zone
About Cenozoic
About Marine geology
About 後期新生代
About 環境指標
About 微古生物学
About 古海洋学
About 進展
About 石灰質ナンノ化石
About サイズ変化
About 新生代
About 古海洋