天然气地球科学 ›› 2010, Vol. 21 ›› Issue (3): 470–475.doi: 10.11764/j.issn.1672-1926.2010.03.470

• 天然气地质学 • 上一篇    下一篇

松辽盆地十屋断陷沉积体系空间展布及演化规律研究

陈新军, 陈萍莉   

  1. 1.中国石油化工股份有限公司石油勘探开发研究院,北京100083;
    2.江西省勘察设计研究院,江西 南昌 330096)
  • 收稿日期:2009-09-16 修回日期:2010-01-14 出版日期:2010-06-10 发布日期:2010-06-10
  • 通讯作者: 陈新军chenxj2008@sina.com. E-mail:chenxj2008@sina.com.
  • 作者简介:陈新军(1975-),男,新疆哈密人,高级工程师,博士后,主要从事层序地层学与沉积学研究.

Spatial Distribution of Depositional System and Evolution  in Shiwu Rift Subsidence of Songliao Basin

CHEN Xin-Jun, CHEN Ping-li   

  1. 1.Exploration and Development Research Institute , China Petrochemistry Limited Company, Beijing100083,China;2.Jiangxi Prospecting and Design Researching Institute,Nanchang 330096,China
  • Received:2009-09-16 Revised:2010-01-14 Online:2010-06-10 Published:2010-06-10

摘要:

通过对岩心、录井、测井及地震资料的综合研究,识别出冲积扇和扇三角洲等8种沉积相类型,并组合为冲积沉积体系、河流—三角洲沉积体系、水下扇—扇三角洲沉积体系和湖泊—深水重力流沉积体系等4种类型。研究表明在箕状单断凹陷的构造背景下,十屋断陷早期以冲积沉积体系为主,从沙河子组沉积期至泉头组沉积期,西部断裂带及北部陡坡带沉积体系由冲积沉积体系演化为水下扇—扇三角洲沉积体系,东南缓坡带的沉积体系由滨—浅湖相沉积体系演化为辫状河三角洲—河流相沉积体系,中部沉积类型多样。

关键词: 沉积体系, 演化, 十屋断陷

Abstract:

Based on drill core, logging, hole logging and seismic data, we discerned 8 types of sedimentary facies, such as alluvial fan and fan delta etc. and grouped 4 types of depositional system, including alluvial fan system, river\|delta system, underwater fan-fan delta system, lake-density flow system. The Shiwu rift subsidence was alluvial fan system at early phase. But at the period of Shahezi to Quantou, the depositional system type changed from alluvial fan system to underwater fan-fan delta system in the west fracture belt and the north steep slope belt, and from lake facies to braid delta-river faices in the southeast slow slope belt, and there is multiform sedimentary types in the middle part.

 

Key words: Depositional System, Evolution, Shiwu rift subsidence.

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