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Quaternary fault scarps occur in mountain blocks throughout the Saint Elias orogen of southern Alaska. Mechanisms proposed for formation of these scarps include deformation caused by active folding, downhill creep and landsliding on steep, previously glaciated slopes, and superficial faulting caused by strong ground motion during earthquakes. Field observations and interpretation of high-resolution topographic models constructed from a light detection and ranging (LIDAR) survey indicate that failure by flexural toppling creates the uphill-facing scarps in the mountain that we selected for detailed analysis. Toppling failure occurs by shearing and outward rotation of sedimentary bedding that dips steeply into the...
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Quaternary fault scarps occur in mountain blocks throughout the Saint Elias orogen of southern Alaska. Mechanisms proposed for formation of these scarps include deformation caused by active folding, downhill creep and landsliding on steep, previously glaciated slopes, and superficial faulting caused by strong ground motion during earthquakes. Field observations and interpretation of high-resolution topographic models constructed from a light detection and ranging (LIDAR) survey indicate that failure by flexural toppling creates the uphill-facing scarps in the mountain that we selected for detailed analysis. Toppling failure occurs by shearing and outward rotation of sedimentary bedding that dips steeply into the...
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Quaternary fault scarps occur in mountain blocks throughout the Saint Elias orogen of southern Alaska. Mechanisms proposed for formation of these scarps include deformation caused by active folding, downhill creep and landsliding on steep, previously glaciated slopes, and superficial faulting caused by strong ground motion during earthquakes. Field observations and interpretation of high-resolution topographic models constructed from a light detection and ranging (LIDAR) survey indicate that failure by flexural toppling creates the uphill-facing scarps in the mountain that we selected for detailed analysis. Toppling failure occurs by shearing and outward rotation of sedimentary bedding that dips steeply into the...
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Quaternary fault scarps occur in mountain blocks throughout the Saint Elias orogen of southern Alaska. Mechanisms proposed for formation of these scarps include deformation caused by active folding, downhill creep and landsliding on steep, previously glaciated slopes, and superficial faulting caused by strong ground motion during earthquakes. Field observations and interpretation of high-resolution topographic models constructed from a light detection and ranging (LIDAR) survey indicate that failure by flexural toppling creates the uphill-facing scarps in the mountain that we selected for detailed analysis. Toppling failure occurs by shearing and outward rotation of sedimentary bedding that dips steeply into the...
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Quaternary fault scarps occur in mountain blocks throughout the Saint Elias orogen of southern Alaska. Mechanisms proposed for formation of these scarps include deformation caused by active folding, downhill creep and landsliding on steep, previously glaciated slopes, and superficial faulting caused by strong ground motion during earthquakes. Field observations and interpretation of high-resolution topographic models constructed from a light detection and ranging (LIDAR) survey indicate that failure by flexural toppling creates the uphill-facing scarps in the mountain that we selected for detailed analysis. Toppling failure occurs by shearing and outward rotation of sedimentary bedding that dips steeply into the...
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