DGS Geologic Map Series
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Browsing DGS Geologic Map Series by Author "Andres, A.S."
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Item Geologic Map of the Frankford and Selbyville Quadrangles, Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 2013-12) Tomlinson, J.L.; Ramsey, K.W.; Andres, A.S.The geological history of the surficial units of the Frankford and Delaware portion of the Selbyville Quadrangles was the result of deposition of the Beaverdam Formation during the late Pliocene and its subsequent modification by erosion and deposition related to sea-level fluctuations during the Pleistocene. The geology at the land surface was then further modified by periglacial activity that produced dune deposits in the map area. Surficial geologic mapping was conducted using field maps at a scale of 1:12,000 with 2 foot contours. Stratigraphic boundaries drawn at topographic breaks reflect detailed mapping using contours not shown on this map.Item Geologic Map of the Seaford West and Seaford East Quadrangles, Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 2015-08) Tomlinson, J.L.; Ramsey, K.W.; Andres, A.S.The geological history of the surficial units of the Seaford East Quadrangle and the Delaware portion of the Seaford West Quadrangle was the result of deposition of the Beaverdam Formation and its subsequent modification by erosion and deposition related to sea-level fluctuations during the Pleistocene. The geology reflects this complex history by the cut and fill geometry of the middle and late Pleistocene deposits incised into the Beaverdam Formation. The geology is further complicated by periglacial activity that produced dune deposits and the Carolina Bays in the map area, which modified the land surface.Item Geology Of The Seaford Area, Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1995) Andres, A.S.; Ramsey, K.W.