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笔者报道了在祁连山东部开展早古生代地层和沉积一构造演化研究所获得的最新成果.在生物地层学方面,对祁连山东部寒武纪地层和动物群特征进行了系统的论述,对北祁连山奥陶纪等时地层格架、有关岩石地层单位的含义、时限及分布特征作了补充和修订。在沉积学方面,着重分析了祁连山东部早古生代各种沉积相及环境,特别是晚寒武世大陆裂谷发育中、晚期的火山一沉积环境.在上述基础上,运用板块构造理论提出祁连山东部早古生代沉积-构造演化的新认识.同时,该文亦描述了拉鸡山晚寒武世的4个三叶虫新属.
The author reported on the latest achievements in the study of the Paleozoic strata and sedimentary-tectonic evolution in the eastern Qilian Mountains. In terms of biostratigraphy, the characteristics of the Cambrian strata and fauna in the eastern Qilian Mountains are systematically discussed. The Ordovician isochronal stratigraphic framework, implications, time limits and distribution characteristics of lithostratigraphy unit are complemented and analyzed Revised In terms of sedimentology, we emphatically analyzed the early Paleozoic sedimentary facies and environment in the eastern part of the Qilian Mountains, especially the middle and late volcanic-sedimentary environments of the Late Cambrian continental rift. On the basis of the above, a new understanding of the sedimentation-tectonic evolution of the Early Paleozoic in the eastern Qilian Mountains was proposed based on the plate tectonics theory. At the same time, the paper also describes four new trilobite genus in the Late Cambrian of Laji Mountain.