Incorporating imaginary faults in graphical stress methods

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• 作者：Yehua Shan ; Ye Tian ; Wenjiao Xiao
• 关键词：The right dihedra method ; The right trihedra method ; Imaginary fault ; Principal stress directions ; Graphic determination
• 刊名：Journal of Structural Geology
• 出版年：2009
• 出版时间：April 2009
• 年：2009
• 卷：31
• 期：4
• 页码：366-368
• 全文大小：246 K

文摘

The concept of an imaginary fault is introduced in this communication as an auxiliary constraint in the graphical determination of principal stress directions. A new graphic method is developed for this purpose by applying the right dihedra method to both real faults and their imaginary faults. Although similar to each other, this method has advantages in simplicity and convenience over the right trihedra method that is essentially an extension of the right dihedra method.