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首次发现西藏安多县东巧地区晚侏罗世生物礁 ,造礁生物以层孔虫和六射珊瑚为主 ,其中 ,层孔虫可分为枝状、筒状和块状三种类型 ,它们多以原地生长状态保存。礁岩石学特征研究表明 ,礁岩可分为筒状 -枝状层孔虫障积岩、枝状层孔虫障积岩、筒状层孔虫障积岩、筒状 -块状层孔虫障积 -骨架岩和筒状层孔虫 -六射珊瑚障积 -骨架岩。礁体类型可分为筒状 -枝状层孔虫障积岩隆礁、枝状层孔虫障积岩隆礁、筒状层孔虫障积岩隆礁、筒状 -块状层孔虫障积 -骨架岩隆礁和筒状层孔虫 -六射珊瑚障积 -骨架岩隆礁 ,礁体的演化均经历了奠基阶段、发育阶段和衰亡阶段
For the first time, the Late Jurassic reefs in Dongqiao area, Anduo County, Tibet Autonomous Region were found for the first time. The reef-forming organisms mainly consisted of stratocotyledons and six corals. Among them, the stomatal organisms could be divided into three types: They are mostly preserved in situ growth status. Reef petrological characteristics of the study shows that the reef rock can be divided into tubular - dendritic stratoid rock, dendritic foraminifera, cylindrical stomatal lagoon rock, tubular - massive larvae Barrier - Skeleton Rock and Cylindrical Foraminifera - Six-Coral Barrier - Skeleton Rock. Reef types can be divided into tubular - dendritic foraminifer brecciated rock reef, dendritic foraminifera barrier rock reef, tubular lamellar worm faulted rock reef, tubular - massive larvae Barrier products - Skeleton rock reefs and Cylindrical foraminifera - Cathaysian dolostone - Skeleton rock reef, reef evolution have experienced the foundation stage, the development stage and the decline stage