贵阳乌当古生代腕足动物化石壳质成份的初步研究

Preliminary Study on the Fossil Shell Composition of Palaeozoic Era Brachiopodaa at Wudang Guiyang

通过对乌当古生代五组腕足动物化石壳和围岩的光谱半定量及红外光谱测试扫描,发现化石壳的化学成份、矿物成份和围岩关系密切,说明石化过程中,置换、交代作用进行得比较完全,这种研究有明显意义。

Having analysed the composition of 5 groups Brachiopoda fossil shell in Palaeozoic era and the country rock through spectral semiquantitative and infrared spectrometry scanning,the writers found out the close relations between the chemial composition of fossil shell, the mineral component and the country rock ingredient,showing the fact that the replacement and metasomtism are comparatively complete. The study has an obvious significance.