测区罗雅楚山组属塔里木南疆地层大区,结合宏观岩石组合、分布特征和微观岩石地球化学特征综合分析认为,本区罗雅楚山组硅质岩成因以生物成因为主,总体形成于大陆边缘环境,其硅质主要来源于海水直接从老的上地壳带来的化学物质.%In this paper,when combined with macro-rock assemblage in distribution and micro-rock geochemical characteristics,it is concluded that the genesis of the siliceous rocks in Luoyachu mountain formation in this area are dominated by biogenic genesis.In the continental margin of the environment,its siliceous state comes mainly from the sea,or directly from the old crust by the chemical substances.
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