天津蓟县中新元古代层序地层初探

基金项目:

王鸿祯院士主持的国家攀登项目,“中国古大陆及其边缘层序地层和海平面变化研究”和石油天然气总公司项目

详细信息

MESO-AND NEOPROTEROZOIC SEQUENCE STRATIGRAPHY IN JIXIAN

摘要: 运用层序地层学的原理和方法，重新探讨了蓟县中、新元古代层序及不同层序的层序界面、副层序的类型、相演化及海平面变化；初步识别出１８个层序界面，因而将其划分为１７个层序，其中有５个层序界面与岩组界线不一致。通过生物的丰度探讨了生油层，通过岩相组合探讨了可能的储油层。用新的观点和方法研究并解释这一中、新元古代地层剖面时注重对已有资料的二次开发。

Abstract: The authors have preliminarily studied Meso-and Neoproterozoic sequences of strata andrestudied the sequence boundaries of different sequences,types of parasequences,facies evolution and sea-level changes by using the principle and method of sequence stratigraphy.Eighteen sequence boundaries have been recognized and thus 17 sequences have been distinguished,of which five sequence boundaries are not coincident with rock formation boundaries. Oil source beds have been studied by means of the abundance of organisms. The authors paid attention to the second development of available data when they studied this Meso-and Neoproterozoic stratigraphic section with new view-points and methods.