石油与天然气地质 ›› 1996, Vol. 17 ›› Issue (1): 8-14.doi: 10.11743/ogg19960102

• 论文 • 上一篇    下一篇

关于扭动构造的鉴别问题

严俊君1, 王燮培2   

  1. 1. 石油大学地球科学系, 北京 102200;
    2. 中国地质大学石油系, 湖北武汉 430074
  • 收稿日期:1995-08-28 修回日期:1995-09-25 出版日期:1996-03-25 发布日期:2014-01-14

ON IDENTIFICATION OF WRENCH STRUCTURE

Yan Junjun1, Wang Xiepei2   

  1. 1. Petroleum University, Beijing;
    2. China University of Geosciences, Wuhan
  • Received:1995-08-28 Revised:1995-09-25 Online:1996-03-25 Published:2014-01-14

PDF (PC)

506

被引次数

41

摘要：

鉴别扭断裂的地下标志归纳为九点:(1)雁列构造;(2)花状构造;(3)辫状构造;(4)窄变形带;(5)窄而深的半地堑构造;(6)窄而厚的粗相带;(7)两盘地层岩性不相匹配;(8)断面倾向摇摆、多变;(9)杂乱的地震显示。然而在实际应用中由于鉴定不准确存在夸大平移扭动作用的趋向,特别是在鉴别“雁列构造”和“花状构造”两个重要标志中出现的问题较大,关键问题是:(1)张性雁列构造并不一定指示平移扭动;(2)对于盆地内薄皮构造而言,“基底卷入”不应作为扭断裂的根本鉴别标志;(3)我国西部各油区广泛发育的“背冲断块”大多不属“花状构造”.

关键词: 扭动构造, 鉴别标志, 问题, 花状构造, 雁列构造, 背冲断块

Abstract:

The subsurface markers for identifying wrench structure could be concluded as follows:(1)echelon structure 3(2) flower-form structure;(3)braid structure;(4).narrow deformationzone;(5) deep narrow half-graben;(6) narrow thick coarse deposit zone;(7) unmatchablestrata across a fault;(8)swaying and variable fault dip;(9)clutter seismic reflection.However,the trend of overstating the effect ofwrenching may occur due to inaccurate identification in actual application, especially in identifying echelon structure and flower-formstructure.The key problems are(1) tenso-echelon does not always indicate wrench fracture;(2) as for the shallow-rooted structures in a basin,"basement-involving"could not be theessential identificative criterion of wrench fault I(3)the back--thrust blocks that widely developed in oil provinces in West China are mostly not flower-form structures.