Synthetic slip plane, a hybrid kind of calcite twin data in dynamic analysis

This paper defines a synthetic slip plane as the linear combination of a pair of twinned and untwinned e-planes in a single calcite crystal. This auxiliary slip plane is dependent upon neither the twinned e-plane nor the untwinned e-plane. It can be used together with the twinned e-plane either to further constrain the extents of the compression and tension axes in graphic dynamic analysis or to better estimate the reduced stress in numerical dynamic analysis. Highlights • The linear combination of twinned and untwinned e-planes in a calcite crystal defines the synthetic slip plane. • The synthetic slip plane can be incorporated into graphic and numerical dynamic analysis.