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层序年代地层体制,本质上就是以各种不同级次的海平面变化所控制的不同级次的沉积层序为单位,在年代地层学格架中所建立起来的地层系统。本文以露头剖面的层序地层研究为主要依据,结合生物地层和地震地层的研究成果,在进行详细层序划分的基础上,通过生物地层和层序地层相结合的方法,重新屋定并标定了塔里木盆地北部石炭一二叠系中一系列重要地质界面和层序界面的年龄。首次在该区石炭一二叠纪地层中建立起了由不同周期叠加的海平面变化所控制的不同级次的层序所组成的高分辨率居序年代地层体制。它使地层划分和对比在方法上和精度上得到了重大的发展。
Sequence stratigraphic stratigraphic system is essentially a stratigraphic system established in the stratigraphic framework of the strata based on different levels of sedimentary sequence controlled by different levels of sea level change. Based on the study of sequence stratigraphy of outcrop profile, combining with the research results of biostratigraphy and seismic stratigraphy, based on the detailed sequence stratigraphy division, this paper rebuilds and calibrates The ages of a series of important geological and sequence interfaces in the Carboniferous-Permian system in the northern part of the Tarim Basin. For the first time, high-resolution sequence stratigraphy of the Ordos Basin in the Permian-Permian strata has been established by different levels of sea level controlled by the superposition of different cycles. It has led to significant advances in methodology and precision in stratigraphic division and contrast.