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DGS releases new geologic map of Georgetown area

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May 27, 2010

The Delaware Geological Survey (DGS) has published a new geologic map of the Georgetown area in eastern Sussex County entitled Geologic Map of the Georgetown Quadrangle, Delaware. Geologic Map No. 15 presents the results of research by Kelvin W. Ramsey of the DGS.

The map shows and describes the geologic units found at the land surface and in the shallow subsurface in the map area. The purpose of the map is to provide geologic information that can be used for determining such things as the geology of watersheds, recognition of the relationship between geology and regional environmental or land-use issues to support land-use and regulatory decision making, and identification of potential locations of sand and gravel resources.

When used in conjunction with subsurface geologic information, the map can be used to aid in locating water supplies for public, domestic, agricultural and industrial use, mapping groundwater recharge areas, and protecting ground- and surface-water resources in a rapidly growing area in Sussex County.

The map contains cross sections that show stratigraphic units that lie beneath the surficial units and detailed descriptions and ages of all units presented on the map. Water-bearing sands in the Beaverdam and Cat Hill Formations function as major aquifers for public and agricultural water supplies in the Georgetown area.

The map is part of the Delaware Geological Survey's ongoing mission to understand geologic and hydrologic systems and to advise, inform and educate Delawareans about the results of such investigations for use in issues regarding surface and groundwater resources, agriculture, economic development, land-use planning, environmental protection, resource evaluation, engineering applications, hazard identification and mitigation, and recreation.

DGS Geologic Map No. 15 is available in PDF format to view online or as a downloadable product from the DGS website.

Printed copies may be requested by contacting the Delaware Geological Survey at (302) 831-2833, via email at [delgeosurvey@udel.edu], or by visiting the DGS office off Academy Street on the University of Delaware campus in Newark.

For questions and information, contact DGS at
delgeosurvey@udel.edu, 302-831-2833