About BOYD S R
About Open Univ., Milton Keynes, GBR
About HALL A
About Univ. London, Surrey, GBR
About PILLINGER C T
About Open Univ., Milton Keynes, GBR
About Geochimica et Cosmochimica Acta
About nitrogen 15
About Isotope geology
About Metamorphic rocks
About 真空
About マススペクトロメトリ
About 地殻岩石
About δ15N
About イングランド
About 底盤
About アンモニウム
About 起源