About KUMA RYUSEI
About HASEGAWA HITOSHI
About YAMAMOTO KOUSHI
About IKEDA MASAYUKI
About WHITESIDE J.
About サウサンプトン大
About 日本地球惑星科学連合大会予稿集(Web)
About United States of America
About lacustrine sediment
About Eocene Epoch
About chert
About climatic variation
About chemical composition
About productivity
About silicon dioxide
About グリーンリバー層
About Midwestern United States
About Early Eocene
About elemental composition
About warm period
About biological productivity
About silica
About Cenozoic
About 北米
About グリーン
About リバー
About 湖成層
About チャート
About 成因
About 始新世前期
About 温室
About 湖