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256 CHAPTER 9
Figure 9.9 Downbending of an elastic or elastic-
perfectly plastic plate at a subduction zone (redrawn
from Turcotte et al., 1978, with permission from
Elsevier). Figure 9.10 Observed and theoretical profiles of
lithosphere bending at a trench: (a) Mariana Trench,
with an elastic lithosphere 29 km thick; (b) Tonga
Trench, better modeled by an elastic-perfectly plastic
plate 32 km thick (redrawn from Turcotte et al., 1978,
with permission from Elsevier).
Figure 9.11 Focal mechanism solutions of earthquakes in the Aleutian arc, compressional quadrant shaded (redrawn
from Stauder, 1968, by permission of the American Geophysical Union. Copyright © 1968 American Geophysical Union).
