The complex geologic history of the surficial units of the Harbeson Quadrangle is one of deposition of the Beaverdam Formation and its subsequent modification by erosion and deposition related to sea-level fluctuations during the Pleistocene. The geology is further complicated by periglacial activity that produced dune deposits and Carolina Bays scattered throughout the map area.
Please give proper credit to the Delaware Geological Survey.
Ramsey, K.W. and Tomlinson, J.L. , 2011, Geologic Map of the Harbeson Quadrangle, Delaware: Delaware Geological Survey Geologic Map 17, scale 1:24.000
Delaware Geological Survey
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