新疆石油地质 ›› 2011, Vol. 32 ›› Issue (3): 228-230.

• 油气勘探 • 上一篇    下一篇

塔里木板块塔中–古城区块早–中奥陶世沉积格局

王振宇1, 韩杰2, 熊益学1, 孙崇浩1,2, 于红枫2   

  1. 1.西南石油大学,成都 610500;
    2.中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒 841000
  • 收稿日期:2010-10-19 出版日期:2011-06-01 发布日期:2020-08-14
  • 作者简介:王振宇(1964-),男,河南滑县人,副教授,博士,沉积学,(Tel)028-83033472(E-mail)starriverusst@vip.sina.com.

Depositional Framework of Early-Middle Ordovician in Tazhong-Gucheng Area in Tarim Plate

WANG Zhen-yu1, HAN Jie2, XIONG Yi-xue1, SUN Chong-hao1,2, YU Hong-feng2   

  1. 1. Southwest Petroleum University, Chengdu, Sichuan 610500;
    2. Research Institute of Exploration and Development, Tarim Oilfield Company, Korla, Xinjiang 841000, China
  • Received:2010-10-19 Online:2011-06-01 Published:2020-08-14

摘要: 从沉积特征、地震反射特征和区域地层厚度变化等方面探讨了塔中和古城地区早中奥陶世的沉积格局。研究表明,塔中地区和古城地区分别存在两个孤立的台地边缘-斜坡体系,之间由一个相对低洼的中古海槽所间隔。孤立台地-海槽沉积格局的确立,对寻找和圈定中下奥陶统台缘高能相带以及扩大该区的油气勘探领域具有重要的意义。

关键词: 塔里木板块, 塔中, 古城, 奥陶纪, 台地边缘, 海槽, 沉积格局

Abstract: The core drillings prove that slope facies sediments exist in the Middle-Lower Ordovician in Tazhong area. From the sedimentary characteristics, seismic reflection characteristics and regional stratigraphic thickness changes, this article discusses the depositional framework of the Early-Middle Ordovician in Tazhong and Gucheng areas where two isolated platform margin-slope systems are existed respectively, between which is separated by a relatively low Zhonggu trough. Such a depositional framework discovery is an important significance to exploring and delineating the platform margin high energy facies of the Middle-Lower Ordovician and expanding the oil and gas exploration blocks in these areas.

Key words: Tarim plate, Tazhong, Gucheng, Early-Middle Ordovician, platform margin, Trough, depositional framework

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