About MAZER J J
About Argonne National Lab., Illinois, USA
About BATES J K
About Argonne National Lab., Illinois, USA
About BRADLEY J P
About McCrone Assoc. Inc., Illinois, USA
About BRADLEY C R
About Argonne National Lab., Illinois, USA
About STEVENSON C M
About Archaeological Serv. Consultants, Ohio, USA
About Nature (London)
About Cretaceous Period
About Stratigraphy,hiotorical geology,paleogeography in general
About 風化
About テクタイト
About 変質