石油与天然气地质 ›› 1998, Vol. 19 ›› Issue (4): 313-317.doi: 10.11743/ogg19980409

• 论文 • 上一篇    下一篇

济阳坳陷新老第三纪地层间断面研究

吴智平, 史卜庆, 周瑶琪, 李建明   

  1. 石油大学油气资源与环境地质研究所, 山东东营257062
  • 收稿日期:1998-07-02 出版日期:1998-12-25 发布日期:2012-01-18
  • 基金项目:

    石油天然气总公司中青年创新基金项目“渤海湾盆地N/E间断面的精细时间结构研究”的阶段性研究成果

A STUDY ON HIATUS SURFACE OF NEOGENE EOGENE IN JIYANG DEPRESSION

Wu Zhiping, Shi Buqing, Zhou Yaoqi, Li Jianming   

  1. Institute of Petroleum Resource & Environmental Geology, Petroleum University, Dongying, Shandong
  • Received:1998-07-02 Online:1998-12-25 Published:2012-01-18

PDF (PC)

857

被引次数

27

摘要：

济阳坳陷新老第三纪地层间断面是一个下剥上超面。界面之下为断陷沉积,受构造抬升作用的影响地层受到强烈剥蚀,从凸起到凹陷地层时代由太古代逐渐变化为中、新生代;地层接触关系由非整合接触逐渐变为平行不整合;裂变径迹和镜质体反射率资料反映出地层剥蚀量也存在明显差异,凸起上约6000～8000m,凹陷内不到100m.界面之上为坳陷沉积,馆陶组下段为填平补齐沉积,上段为披覆沉积,盖在所有凸起和凹陷之上。这些特征体现了济阳坳陷由断陷阶段断块掀斜运动到整体抬升、剥蚀夷平再到坳陷阶段整体沉降运动的演化过程。

关键词: N/E间断面, 剥蚀量, 形成过程, 济阳坳陷

Abstract:

The hiatus surface of Neogene-Eogene in Jiyang Depression is situated between underlying erosion and overlap strata.Under the boundary,there were sediments formed in faulted depression and were eroded due to tectonic uplift.The stratigraphic ages of the sediments gradually changed from Archeozoic on uplifts to Mesozoic and Cenozoic in sags; the stratigaphic connection changed from nonconformity to parallel unconformity;the erosion amounts changed from 6 000-8 000 m on uplifts to less than 100 m in sags.On the the boundary,there were sediments formed in depression.The lower part of Guantao Formation is filled in deposit,the upper part is drape deposit covering all uplifts and sags.These properties indicate that the depression underwent the evolution process of fault subsiding→sloping→uplifting→eroding→subsiding.