The systematical experiments carried out by G6mez-Rivas and Griera （2012） demonstrate that the ductile shear zones initiate at 55° to 0-1 just as predicted by the MEM-criterion. However, the data are explained ...The systematical experiments carried out by G6mez-Rivas and Griera （2012） demonstrate that the ductile shear zones initiate at 55° to 0-1 just as predicted by the MEM-criterion. However, the data are explained in terms of dilatancy, which requires many prerequisites and implies that the ±55° angle is only valid for the used material. In contrast, the -55°predicted by the MEM-criterion is material independent, which makes it widely applicable to explaining the development of ductile shear zones in nature.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.90714006 and 40872133)
文摘The systematical experiments carried out by G6mez-Rivas and Griera （2012） demonstrate that the ductile shear zones initiate at 55° to 0-1 just as predicted by the MEM-criterion. However, the data are explained in terms of dilatancy, which requires many prerequisites and implies that the ±55° angle is only valid for the used material. In contrast, the -55°predicted by the MEM-criterion is material independent, which makes it widely applicable to explaining the development of ductile shear zones in nature.
