粒度分析在瓮福磷矿沉积环境研究中的应用

Application of Granulometric Analysis to Study Sedimentary Environment of Wengfu Phosphorite Deposit

本文通过对贵州省瓮福磷矿南沱组和陡山沱组沉积岩石碎屑粒度分析及粒度参数的研究，对沉积环境作出解释，与其它相素分析的结果是吻合的，这表明粒度分析可以作为确定沉积环境的参照资料。

Using the results of granulometric analysis for the fragments of sedimentary rocks of Nantuo Fm. and Doushantou Fm.of Sinian in Wengfu phosphorite deposit and its grain-size parameters to explain the sedimentary environment, it is indicated that the results coincide with the one of other phase-factor analysis. The author, therefore, considers that granulometric anaysis can be used as a reference to determine sedimentary environment.