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沉积波动过程分析在地层层序分析中的应用——以塔里木盆地为例

The Applications of Sedimentary Wave Processes in the Analysis of Stratigraphic Sequences -Case Study of Tarim Basin

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【作者】 刘国臣

【Author】 Liu Guochen (Petroleum University,Beijing 102200)

【机构】 石油大学

【摘要】 沉积波动过程是地壳波状运动的具体表现,它是各种天文因素、地质因素共同作用的结果,沉积波动过程的时空演化控制着地层层序的时空展布特点。在介绍沉积波动过程分析概念、技术思路、工作方法的基础上,利用沉积波动曲线在剖面上的预测功能及对沉积-剥蚀过程起止时间、不整合的研究成果,分析了塔里木盆地震旦系至第四系各主要构造层的地层展布特征,并对其形成过程及成因进行了分析,在理论和方法研究方面,试图将沉积波动特征的研究与层序地层学的研究结合起来,提出了地层格架-沉积波动特征连井对比图的概念和编制方法,该类图件能直观地反映多期不整合的存在及不整合间断的时间,并能直观地反映各层序的时空分布,而且能够解释地层格架的形成过程,进而进行成因分析,是沉积波动过程分析方法与层序地层学结合的一种具体、有益的偿试。

【Abstract】 The wave process of sedimentary basin is a form of earth’s crust movement,which is controled by both cosmogony and earth evolution. Tht distribution of stratigraphic sequence in time and space is determined by the evolution of sedimentary wave processes.Based on the discussion of the theory of sedimentary wave processes,technique approach and working method,the distribution and formation of stratigraphic sequences of Sinian-Quaternary ws studied by using the predictive function of the sedimentary wave cruves studing the starting and ending time of deposition and erosion,and the erosional quantity of the unconformities .In the aspects of theory and method,the author was trying combining the sediementary wave processes of the study of sequance stratigraphy,and put forward the concept of the well connected correaltion figure of stratigraphic frame work and sedimentary wave processes and its making steps.The figure reflects the position and the forming time of unconformities,thd distrbution of the stratigraphic sequence,and interprets the forming processes of the stratigraphic framework preserved,as well as its origin It is a helpful attempt to study the connection of sedimentary wave processes and the sequence stratigraphy.

  • 【文献出处】 沉积学报 ,ACTA SEDIMENTOLOGICA SINICA , 编辑部邮箱 ,1998年04期
  • 【分类号】P512.2,P534
  • 【被引频次】6
  • 【下载频次】149
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