Geosphere; February 2008; v. 4; no. 1;
p. 292-314; DOI: 10.1130/GES00111.1
© Geological Society of America
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Figure 18. Schematic structural interpretation of relations between the Gaoligong Shan shear zone, Sibumasu, Chong Shan shear zone, and the Lanping-Simao structural units also shows the structures and the morphological features that bound the Chong Shan shear zone and have played an important role in its exhumational history. The Chong Shan shear zone is bounded to the west by a normal fault, and to the east, by a thrust fault and a major river, the Mekong/Lancangjiang (blue), which follow this boundary very closely. Contractional structures observed on either side of the shear zone indicate that both pure shear and simple shear likely have affected the Chong Shan shear zone rocks at the same time. We think that vertical stretching was also one of the agents that contributed to the exhumation of the Chong Shan shear zone (inset block diagram).
Copyright © 2008 by Geological Society of America
