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USGS CMG InfoBank: Evidence of Mass Wasting

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Comment: 20:52 - 21:38 (00:46)
Source: Annenberg/CPB Resources - Earth Revealed - 16. Mass Wasting
Keywords: "Ann Meeker", "mass wasting", creep, slump, downslope, depression, mitigation, construction

Our transcription: During the course of their investigation, Meeker and her associates find evidence of mass wasting.
Their subsurface work reveals irregularities in the upper section of the material; in other words "creep."
They also find evidence of slump.
Material that was once in place has clearly moved downslope, creating a shallow depression in the original location and leading to a thickening of ground in the downslope area.
What worries the developer is that if the mass wasting problems go beyond creep and slump, the mitigation costs could be too high to complete the building project.

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