About SATO TOMOHIKO
About SAWAKI YUSUKE
About MARUYAMA SHIGENORI
About SAITO MASAFUMI
About JAMSTEC
About MATSUI YOHEI
About JAMSTEC
About 日本地質学会学術大会講演要旨
About carbon 13
About nitrogen 15
About organic carbon
About Gabonese Republic
About Proterozoic Era
About chemostratigraphy
About organic evolution
About anaerobic
About paleoenvironment
About Isotope geology
About Precambrian
About ガボン
About 盆地
About 前期
About 原生代
About 有機炭素
About 窒素同位体
About 層序
About 大型化石
About 嫌気
About 環境