On the use of imaginary faults in palaeostress analysis
On the use of imaginary faults in palaeostress analysis
复制标题
假想断层在古应力分析中的应用
DOI：
10.1016/j.jsg.2017.09.005
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发表时间：
2017
影响因子：
3.1
通讯作者：
Liang Xinquan
中科院分区：
文献类型：
--
作者：
Shan Yehua;Liang Xinquan
假想断层是指与Wallace-Bott假说具有相似表达的某一给定断层的对应物。它包括使用右二面角方法进一步减少主应力方向的可行场。给定的断层和它的假想断层在伸展或挤压体制下具有相似的倾向滑动方向，但如本文所证明的，在走滑体制下具有不同的倾向滑动方向。它们在倾滑意义上的关系不随坐标系的旋转而改变，从而可普遍用于任何构造体制下的假想断层的还原。提出了一种方法，并应用于一个真实的例子来证明这种方法的可行性。
The imaginary fault refers to the counterpart of a certain given fault that has a similar expression about the Wallace–Bott hypothesis. It is included to further reduce the feasible fields for the principal stress directions using the right dihedra method. The given fault and its imaginary fault have a similar dip-slip sense under the extensional or compressional regime but, as proved in this paper, a different dip-slip sense under the strike-slip regime. Their relation in dip-slip sense does no change with the rotation of the coordinate system, thus making possible the general use in the reduction of the imaginary faults under any tectonic regime. A procedure for this use is proposed and applied to a real example to demonstrate the feasibility of this method.