石油与天然气地质 ›› 1982, Vol. 3 ›› Issue (4): 360-368.doi: 10.11743/ogg19820417

• 论文 • 上一篇    下一篇

鄂尔多斯西、南部中奥陶世环陆架沉积特征

张吉森, 费安琦, 王志辉   

  1. 长庆油田勘探开发研究院
  • 收稿日期:1981-10-30 出版日期:1982-12-25 发布日期:2012-01-16

PALEOGEOGRAPHIC FEATURES OF MIDDLE ORDOVICIAN SEDIMENTS ON ORDOS CONTINENTAL SHELF

Zhang Jisen, Fei Anqi, Wang Zhihui   

  1. Research Institute of Petroleum Exploration and Development of Changqing Oil Field
  • Received:1981-10-30 Online:1982-12-25 Published:2012-01-16

PDF (PC)

671

被引次数

36

摘要：

国内多数研究者均将华北峰峰组与本区中奥陶统对比。近年来笔者等发现,本区早中奥陶世牙形刺动物群面貌显著不同,峰峰组Badoudus-Panderodus-Microcoelodus牙形刺组合,出现于本区南缘歧山、泾阳、富平一带下奥陶统顶部的石马坪组之中,且与整个下奥陶统牙形刺动物群同属太平洋型。

Abstract:

Middle Ordovician sediments locally occurred at the western and southern margins of Ordos platform and are represented by sand-shale facies and carbonates respectively.They are formed in Qilian-Qinling marine trough and Weibei carbonate platform is line with comprehensive analysts of simple-factor based diagrams, facies sequence and charaetus of paleobiota of individual atratigraphical column. Weibei carbonatc platform has correspondingly been subdivided into backbeach Iagoonal zone, shallow-water beach zone and forebeach seaward-sloping Zone.