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陆相地层的层序地层学研究一直是各国地质学家关注的焦点之一。本文主要讨论了陆相层序的控制因素,认为陆相层序的主控因素是构造升降、气候波动、沉积物的供应和充填速率而不是湖平面的升降,它们的综合作用影响着基准面的升降,湖平面的变化只是这种作用的表现形式;同时讨论了古土壤作为层序边界的意义,得出煤层不能作为层序边界的结论;并提出河流冲积体系域(AFS)的概念,建议对于湖泊沉积体系使用扩展体系域(EST)和萎缩体系域(RST)。
The study of sequence stratigraphy of terrestrial strata has been one of the focuses of geologists in various countries. This paper mainly discusses the controlling factors of terrestrial sequence. It is considered that the main controlling factors of terrestrial sequence are tectonic movements, climate fluctuations, sediment supply and filling rate rather than the rise and fall of the lake plane. Their combined effects affect the datum The change of lake level is only the manifestation of this function. Meanwhile, the significance of palaeosol as sequence boundary is discussed, and the conclusion that coal seam can not be used as the boundary of sequence order is obtained. The concept of river alluvial system tract (AFS) It is suggested that extended system tract (EST) and atrophy system tract (RST) be used for lake sedimentary systems.