石油学报 ›› 1992, Vol. 13 ›› Issue (2): 232-239.DOI: 10.7623/syxb199202038

• 论文 • 上一篇    下一篇

东濮凹陷早第三纪含盐地层

张永才   

  1. 中原油田勘探开发研究院
  • 收稿日期:1991-02-07 出版日期:1992-04-25 发布日期:2013-07-08

EARLY TEATIARY SALINE FORMATION IN DONGPU DEPRESSION

Zhang Yongcai   

  1. Institute of Exploration and Development. Zhongyuan Petroleum Exploration
  • Received:1991-02-07 Online:1992-04-25 Published:2013-07-08

摘要: 本文应用生物地层学方法,将东濮凹陷早第三纪含盐地层进行了统一划分与对比.东濮凹陷地层内古生物化石丰富,组合特征和纵向演化规律与渤海湾地区基本一致,属于同一古生物群体,与国内其它地区同时代古生物群也有许多共同之处.因此,该凹陷含盐地层不但可与渤海湾地区早第三纪地层进行对比,而且也可与国内其它地区同期地层进行对比.根据其他地区地层单元已确定的地质时代,将东濮凹陷和渤海湾地区沙四段、沙三段的地质时代分别划归中、晚始新世.

关键词: 东濮凹陷, 早第三纪, 含盐地层, 地层划分, 地层对比, 生物地层学, 地质时代确定

Abstract: Early Tertiary saline formation are widely spreaded in Dongpu Depression,with largethicknesses and highly abundant palaeontological fossils.Their assemblage features and verticle evolution are mainly consistent with those in Bohai Bay region,and the palaeontological groups are similar to those contemporaneous ones in many respects with those in other regions in China.Correlations of various groups and intervals in this region with those in Bohai Bay region are established.With a composite analysis of the palaeontological fossils in these formations,Kongdian,4th and 3rd menber of the Shahejie Formation are classified into Pliocene,-Early Eocene,Middle Eocene,and late Eocene repectively.