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Little Hat Mountain, CA. Jess Valley, CA. Mass wasting features. Brook, question 7.1, King Hill, ID 7.1a What type of mass movement occurred and how did it happen? Did debris reach King Cr? If so, where? Give coordinates. 7.1c
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Mass wasting features • Brook, question 7.1, King Hill, ID • 7.1a • What type of mass movement occurred and how did it happen? • Did debris reach King Cr? If so, where? Give coordinates. • 7.1c • Three well-defined slump blocks are visible in the middle photo. Give their grid coordinates. rotational block slump yes, at A.0-3.0 to A.4-3.4 C.9-2.1 or E.0-2.1
Brook, question 7.2, Slumgullion, CO • 7.2a • What kind of mass movement occurred? • 7.2b • What relationship is there between the moved material and Lake San Cristobal? earthflow (more soil than rock/soil mix) earthflow dammed the river creating Lake San Cristobal
Mass wasting features • Brook, question 7.3, Sundog Basin, Canada • What type of mass movement has occurred in the unconsolidated sands (D.1-2.0)? • What could have triggered it? rotational soil slump erosion of the slope toe by the river reduced support at toe and weight of overlaying material triggered failure