新疆石油地质 ›› 2006, Vol. 27 ›› Issue (6): 667-669.

• 油气勘探 • 上一篇    下一篇

塔里木盆地轮南奥陶系研究新进展

刘静江1,2, 袁玉春1, 龙维华1, 胡龙迪1   

  1. 1.西北大学地质学系, 西安 710059;
    2.中国石油塔里木油田分公司, 新疆库尔勒 841000
  • 收稿日期:2006-04-04 出版日期:2006-12-01 发布日期:2020-10-21
  • 作者简介:刘静江(1968-), 男, 河南人, 高级工程师, 石油地质,(Tel) 0996-2172202(E-mail) ljjtarim2@tom.com.

Advances in Ordovician Study of Lunnan Area in Tarim Basin

LIU Jing-jiang1,2, YUAN Yu-chun1, LONG Wei-hua1, HU Long-di1   

  1. 1. Department of Geology, Northwest University, Xi'an, Shaanxi 710059, China;
    2. Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China
  • Received:2006-04-04 Online:2006-12-01 Published:2020-10-21

摘要: 受资料条件的限制, 以往对轮南地区奥陶系内部的接触关系并不十分清楚。近期通过钻探和系统的地质研究发现了一些直接的地层不整合证据, 证明轮南奥陶系内部存在多期地层不整合。桑塔木组、良里塔格组、吐木休克组之间都是不整合接触, 而一间房组和吐木休克组之间则是整合接触。在连续的化石带里可能也会出现较长时间的地层不整合。

关键词: 塔里木盆地, 奥陶系, 地层不整合, 风化壳岩溶

Abstract: The contact relation was unclear within the Ordovician in Lunnan area of Tarim basin due to lack of related information. Recently, some direct proofs about the unconformity have been found by drilling and in-depth geologic study in this area, showing that there exist multiple unconformities within the Ordovician among Sangtamu formation, Lianglitag formation and Tumuxiuke formation, except for the conformity contact between Yijianfang formation and Tumuxiuke formation. There might be relatively long-term stratigraphic unconformities in successive fossil assemblage zones.

Key words: Tarim basin, Ordovician, stratigraphic unconformity, crust karst

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