贺兰山NNE向反“S”型构造的弹性力学探讨

收稿日期: 1997-05-04

修回日期: 1997-06-01

刊出日期: 1997-06-28

ELASTIC MECHANICS APPROACH OF HELANSHAN NNE TRENDING REVERSED S-SHAPED STRUCTURE

Received Date: 04 May 1997

Revised Date: 01 June 1997

Publish Date: 28 June 1997

摘要: 贺兰山NNE向反"S "型构造由一系列褶皱、断裂组成,相互平行,略显斜列。构造形迹多表现为压扭性,且以压性为主,兼有反扭。对其构造特征、力学成因和成生发展史,前人仅有定性描述。本文从弹性力学角度半定量-定量来求解该问题,并给出一个数学力学模型,较圆满地解释了贺兰山NNE向反" S"型构造的力学成因。
- 贺兰山NNE向构造 /
- 反S型构造
Abstract: The reversed "S"-shaped structure consists of series of NNE-trending folds and faults,which are mutually parallel and en echelon arranged.The component structures are mostly expressed as compress-shear elements,with sinistral motion predominated.They were only qualitatively described previously.This article,however,gives a mathematical-mechanical model for its formation.
- Helanshan NNE-trending structure /
- reversed s-shaped structure