國(guó)際地科聯(lián)在中國(guó)確立的第一個(gè)遠(yuǎn)古奧陶系地層剖面界碑。ThefirstmarkerintheOrdovicianperiodapprovedbytheInterna-tionalGeologicalScienceAssociation,itisoneoftheonlytwogoldenspikesinChina. (本文共 156 字 , 1 張圖 ) [閱讀本文] >>
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 國(guó)際地科聯(lián)在中國(guó)確立的第一個(gè)遠(yuǎn)古奧陶系地層剖面界碑。ThefirstmarkerintheOrdovicianperiodapprovedbytheInterna-tionalGeologicalScienceAssociation,itisoneoftheonlytwogoldenspikesinChina. (本文共 156 字 , 1 張圖 ) [閱讀本文] >>