Bulletin of the Seismological Society of America; February 2006; v. 96; no. 1;
p. 33-47; DOI: 10.1785/0120050094
© Seismological Society of America
Click on image to view larger version.
Figure 5. Topographic map of the study site with 1-m contour interval. Channels once
connected to the main channel (southeast) have been offset as the three beheaded
channels to the northwest. Our trench excavations exposed offset channels in T2,
T3, T8, T6', and T7. The T7 channel has subsequently captured the small
drainage immediately above it. The cross section below shows the topographic
profile through the beheaded channels (dashed line on map) and the projected
channel cross sections exposed and surveyed in the excavations. Note that the
offsets determined by matching the channels defined in the trenches are
different than those determined just from the offset geomorphology. Trench
locations (closed polygons) are mapped from survey data.
