About JOHNSON C M
About Univ. Wisconsin, Madison
About THOMPSON R A
About U.S. Geological Survey, Colorado
About Journal of Geophysical Research
About Oligocene Epoch
About Colorado
About Volcanic geology in general
About 岩石圏【’81~’92】
About Plate tectonics
About リオグランデ
About リフト
About 漸新世
About 塩基性
About 火山岩類
About 同位体組成
About 岩石圏
About 進化
About サブダクション
About マグマ活動
About 証拠