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Ground-penetrating Radar Mapping of Agricultural Landforms within the New Madrid Seismic Zone of the Mississippi Embayment

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2007 ASAE Annual Meeting  073099.(doi:10.13031/2013.23195)
Authors:   Robert S Freeland
Keywords:   Earthquake, Geophysics, Irrigation, Morphology, Sand Blow, Seismic, Soil, Wetlands

Cataclysmic earthquakes have repeatedly shattered the alluvial landforms about the Missouri Bootheel, the most recent being the 1811-1812 New Madrid earthquakes. During these immense earthquakes, the surface split spewing sands, sulfuric steam, and charcoal. The volcanic-like venting left sand craters pockmarking the surface over millions of acres, with sand-filled vents permanently embedded between the subsurface and surface. Sand vents and fissures now serve as rapid water-transport channels extending from just beneath the surface directly into the water table, draining surface water much like sink holes and abandoned wells.

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