Subsidence-induced fissures in Las Vegas, Nevada
AuthorPassmore, Gary William
AdvisorMaxey, George B.
Geological Sciences & Engineering
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Subsidence induced by artesian head loss has resulted in tansional forces which, when acting across pre-stressed zones in unconsolidated sediments, causes fissuring of the ground surface. Among the major controlling factors of this phenomenon are the presence of a pre—stressed or fractured zone and an area of high differential subsidence. Ideally, fissures will most likely occur at the closed curve of inflection surrounding a subsidence bowl where it transects a fractured zone, for example, a fault scarp.
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