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核形石作为微生物岩的一种重要颗粒结构类型,长期受到地质学家的广泛关注。通过广泛的文献资料调研,分别从核形石相关的定义、分类、成因环境、微生态系统、物质结构组成、生长机制、控制因素等7个方面总结了核形石的研究进展。并通过野外观测和室内综合分析,在山东微山寒武系馒头组中发现了一种核形石新类型,以无核心、无纹层、无定形、菌类含量高、菌结构清楚为显著特征,将其命名为凝块核形石。结合前人研究成果,提出新的核形石定义,并根据核形石的结构组成、结构特征及成因将核形石划分为泥晶纹层核形石、富屑纹层核形石、菌纹层核形石、复合纹层核形石、放射状构造核形石及凝块核形石等6种类型,认为凝块核形石是核形石向凝块石的过渡类型。
As an important type of grain structure of microbial rock, the stone has long been widely concerned by geologists. Through extensive literature research, the progress of research on kibble stone was summarized from seven aspects of the definition, classification, genetic environment, microecosystem, material structure, growth mechanism, control factors and other related. And through the field observation and indoor comprehensive analysis, a new type of stone-shaped stone was found in the Cambrian Group of Weishan, Shandong Province. The core-type stone was found without core, no layer and amorphous, with high fungus content and clear bacterial structure Features, named as clot nuclei. According to the research results of predecessors, a new definition of core stone is proposed. Based on the structural composition, structural characteristics and genesis of the core stone, the core stone is divided into dolomite, Konjac, konjac, konjac, konjac, konjac, konjac, konjac, konjac, konjac, konjac, konjac, kyokono, kyokono, and kyokono.