Radar Structure of Earthquake-Induced, Coastal Landslides in Anchorage, Alaska
Figure 5
GPR profile across the Government Hill landslide. Lateral movement of slide blocks, normal faulting, and formation of large graben deformed the flat-lying stratigraphy of original bluff. Wedge-shaped packets of strong reflections in floor of graben and above main scarp may represent ground cracks infi ]led with poorly consolidated sediment. Apparent reflections deep in the clay section are probably artifacts (ringing) produced by the radar system. Depths are based on radar velocity of 0. 12 m/ns. ns, nanosecond.
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