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塔里木板块塔中井区上奥陶统凯迪阶良里塔格组灰岩中底栖固着型的钙质微生物、钙藻以及动物苔藓虫、珊瑚、层孔虫,可通过障积、盖覆和粘结等方式形成多种类型的生物绑结岩。对15口井部分岩芯以常用的绑结岩分类方案作岩石学微相分析,并描记底栖固着型生物颗粒的形成特征。菌藻类可在内碎屑表面以包结方式形成粘结岩;钙藻,特别是分枝状钙藻可形成障积岩;层孔虫可被隐藻层纹包结,也可单独形成小型盖覆岩;床板珊瑚格架岩可大量障积生屑和灰泥基质;苔藓虫在动物格架岩比例上占优,可与菌藻类粘结岩互相包结生长,也可独立形成局部小型障积岩。对比巴楚露头区同期藻丘中的绑结岩特征,显示塔中良里塔格组代表晚奥陶世由高生物多样性形成的礁滩复合体生态群落。
Tarim plate Tazhong wells in the Upper Ordovician Kaidi step Lianglitage group limestone benthic fixed type of calcareous microorganisms, calcareous algae and animal bryozoans, coral, stomatal, through barrier, cover and sticky Knot formation of various types of biological knot rock. Part of the 15 wells were lithostratigraphic analysis of common corestone classification schemes and the formation characteristics of benthic fixation bio-particles were recorded. Bacteria and algae can be formed in the inner surface of the debris to form a binder rock envelopment; calcium algae, especially branched algae can form barrier rock; stomatal can be buried alginate layer pattern can also be formed separately small Cover rock; bed coral bed rock can be a large number of barrier debris and stucco matrix; bryozoan dominant in the proportion of animal framework rock, bacteria and algae can bind with each other rock growth, but also the independent formation of small local Barrier rock. The characteristics of the bounding rocks in the alluvial mounds during the same period of the Bachu outcrop area show that the Lianglitage Formation in the Tazhong area represents the reef-bank complex ecological community formed by the high biodiversity in the Late Ordovician.