The influence of large-scale bedrock landslides in carving Grand Canyon

Robertson J. The influence of large-scale bedrock landslides in carving Grand Canyon. Research Permit and Reporting System

The effects of large-scale landsliding on the continental-scale Colorado River system in Grand Canyon remain poorly understood. This paper describes deep-seated bedrock landslides in the Surprise Valley area by combining detailed mapping, volume balanced cross-sections, strath terrace heights, and cosmogenic burial dating of river deposits buried by landslides. Mapping shows failures involving ~1000 m Paleozoic section localized within basal shale detachments, dammed and diverted the Colorado.

Type
Unpublished Report
Authors
Robertson, Jesse
Publisher
Research Permit and Reporting System
Units
GRCA

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