新疆石油地质 ›› 2005, Vol. 26 ›› Issue (2): 172-174.

• 油气勘探 • 上一篇    下一篇

阿尔金斜坡地区上、下油砂山组沉积相分析

戴林1, 纪友亮1, 2, 刘成鑫1   

  1. 1.同济大学海洋与地球科学学院,上海 200092;
    2.同济大学油气资源中心,上海 200092
  • 收稿日期:2004-08-23 出版日期:2005-04-01 发布日期:2020-08-24
  • 作者简介:戴林(1980-),男,湖南湘潭人,在硕士研究生,石油地质,(Tel)021-65985163(E-mail)gokknships@sina.com

Sedimentary Fades of Upper and Lower Youshashan Formation in Altun Slope Area, Qaidam Basin

DAI Lln1, JI You-liang1,2, LIU Cheng-xin1   

  1. 1. Institute of Oceanic and Geo-Sciences, Tongji University, Shanghai 200092, China
  • Received:2004-08-23 Online:2005-04-01 Published:2020-08-24

摘要: 在层序地层学研究的基础上,对柴达木盆地阿尔金斜坡地区上、下油砂山组进行了详细的沉积相研究,分析了冲积扇相、河流一泛滥平原相、三角洲相、扇三角洲相、湖泊相等几种类型沉积相特征。并按识别出的4个二级层序,推测了古沉积相的平面展布特征,总结了由于构造抬升造成的新近系湖盆演化和向东迁移规律。结合古构造、古气候、物源供给等分析了阿尔金斜坡地区上、下油砂山组沉积相演化的控制因素。

关键词: 柴达木盆地, 阿尔金斜坡, 油砂山组, 沉积相, 演化

Abstract: This paper presents the in-depth sedimentary facies characteristics of upper and lower Youshashan formation in Altun slope area, Qaidam basin based on the sequence stratigraphic study, and includes the alluvial fan facies, the fluvial-floodplain facies, the delta facies, the fan-delta facies and the lacustrine facies, etc. Using four second-order sequences identified, plane distribution of each sedimentary facies is discussed, and the Neogene lake basin evolution and eastward movement caused by tectonic uplift are speculated. In terms of pale ostructure, paleoclimate and sedimentary source recharge, the dominant factors for Youshashau sedimentary facies evolution are analyzed.

Key words: Qaidam basin, Altun slope, Youshushan fommtion, sedimentary facies, evolution

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