Submitted as a chapter for The Geology of Virginia, edited by Chuck Bailey, College of William and Mary Coastal Processes and Offshore Geology Carl H. Hobbs, III Virginia Institute of Marine Science College of William & Mary Gloucester Point, VA 23062
[email protected] David E. Krantz Department of Environmental Sciences University of Toledo Toledo, OH 43606 Geoffrey L. Wikel Virginia Institute of Marine Science College of William & Mary Gloucester Point, VA 23062 ABSTRACT The modern coastal geology of Virginia results the Delmarva Peninsula, the Bay Mouth, and from the interactions of modern processes, primarily Southeastern Virginia sections insufficiently waves, tidal currents and sea-level rise, with the describes the variation. The two major subaerial antecedent geology. The ancient and major rivers compartments can be further segmented. The draining the Piedmont and interior highlands of Delmarva Peninsula embraces, from north to south, eastern North America carried sediments that were the Cape Henlopen spit complex, the eroding deposited in various areas across the physiographic headlands of Bethany and Rehoboth, the long continuum of the coastal plain and continental shelf Fenwick-Assateague barrier island terminating in a as sea level fluctuated in response to global climate potentially developing cape adjacent to Chincoteague changes. The scarps that formed by shoreline erosion Island, the Virginia Barrier Islands, and the distal during highstands of sea level and the very low- Fishermans Island at Cape Charles. The Virginia gradient intervening flats are the proximal Barrier Islands can be partitioned into a wave- underpinning of the contemporary coastal zone. The dominated, severely eroding northern segment, a ocean shoreline of Virginia comprises parts of two central transitional segment, and a southern segment major coastal compartments: one spanning the with greater tidal influence.