About MATSUMOTO K
About Hokkaido Univ., Sapporo, JPN
About YAMADA K
About Tokyo Metropolitan Univ., Tokyo, JPN
About ISHIWATARI R
About Tokyo Metropolitan Univ., Tokyo, JPN
About Organic Geochemistry
About sterol
About 24-エチルコレステ-5-エン-3β-オール
About Organic geology
About Marine geology
About Cholesterol
About 炭素同位体組成
About 過去
About 日本海
About 堆積物