Southeastern Section - 58th Annual Meeting (12-13 March 2009)

Paper No. 13
Presentation Time: 1:30 PM-5:30 PM

GROUND PENETRATING RADAR (GPR) STRATIGRAPHY OF SURFSIDE BEACH, SC AREA


WRIGHT, Eric, Department of Marine Science, Coastal Carolina University, P.O. Box 261954, Conway, SC 29528, CORREIA, Katie, Marine Science Department, Coastal Carolina University, 1270 Atlantic Avenue, Conway, SC 29526 and HARRIS, M. Scott, Department of Geology and Environmental Geosciences, College of Charleston, 66 George Street, Charleston, SC 29424, ewright@coastal.edu

The 90 km long Grand Strand shoreline of northeastern South Carolina is the result of the intersection of the landward retreating Holocene shoreline with the paleo-Myrtle Beach barrier system. In the Surfside Beach area, located near the middle of the Grand Strand, the shoreline area is dominated by fully welded Pleistocene headlands with small swash channels draining wetlands located within the topographic lows of the compound paleo-barrier system. Along very limited sections of the Surfside Beach area coastline, shore-parallel coastal wetlands have formed at the intersection of the transgressive shoreline and the emergent terraces. This study uses LIDAR, aerial photography, and GPR data to examine the morphology and shallow subsurface stratigraphy of the pre-transgressive emergent paleo-barrier system and the current Holocene transgressive sediment wedge.