Title: Migration of the Pee Dee River system inferred from ancestral paleochannels underlying the South Carolina Grand Strand and Long Bay inner shelf
Abstract: Research Article| May 01, 2006 Migration of the Pee Dee River system inferred from ancestral paleochannels underlying the South Carolina Grand Strand and Long Bay inner shelf Wayne E. Baldwin; Wayne E. Baldwin 1U.S. Geological Survey, St. Petersburg, Florida 33701, USA Search for other works by this author on: GSW Google Scholar Robert A. Morton; Robert A. Morton 1U.S. Geological Survey, St. Petersburg, Florida 33701, USA Search for other works by this author on: GSW Google Scholar Thomas R. Putney; Thomas R. Putney 2Department of Geology and Environmental Geosciences, College of Charleston, Charleston, South Carolina 29424, USA Search for other works by this author on: GSW Google Scholar Michael P. Katuna; Michael P. Katuna 2Department of Geology and Environmental Geosciences, College of Charleston, Charleston, South Carolina 29424, USA Search for other works by this author on: GSW Google Scholar M. Scott Harris; M. Scott Harris 3Center for Marine and Wetland Studies, Coastal Carolina University, Conway, South Carolina 29526, USA Search for other works by this author on: GSW Google Scholar Paul T. Gayes; Paul T. Gayes 3Center for Marine and Wetland Studies, Coastal Carolina University, Conway, South Carolina 29526, USA Search for other works by this author on: GSW Google Scholar Neal W. Driscoll; Neal W. Driscoll 4Geosciences Research Division, Scripps Institute of Oceanography, La Jolla, California 92093, USA Search for other works by this author on: GSW Google Scholar Jane F. Denny; Jane F. Denny 5U.S. Geological Survey, Woods Hole, Massachusetts 02543, USA Search for other works by this author on: GSW Google Scholar William C. Schwab William C. Schwab 5U.S. Geological Survey, Woods Hole, Massachusetts 02543, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Wayne E. Baldwin 1U.S. Geological Survey, St. Petersburg, Florida 33701, USA Robert A. Morton 1U.S. Geological Survey, St. Petersburg, Florida 33701, USA Thomas R. Putney 2Department of Geology and Environmental Geosciences, College of Charleston, Charleston, South Carolina 29424, USA Michael P. Katuna 2Department of Geology and Environmental Geosciences, College of Charleston, Charleston, South Carolina 29424, USA M. Scott Harris 3Center for Marine and Wetland Studies, Coastal Carolina University, Conway, South Carolina 29526, USA Paul T. Gayes 3Center for Marine and Wetland Studies, Coastal Carolina University, Conway, South Carolina 29526, USA Neal W. Driscoll 4Geosciences Research Division, Scripps Institute of Oceanography, La Jolla, California 92093, USA Jane F. Denny 5U.S. Geological Survey, Woods Hole, Massachusetts 02543, USA William C. Schwab 5U.S. Geological Survey, Woods Hole, Massachusetts 02543, USA Publisher: Geological Society of America Received: 14 Jun 2005 Revision Received: 21 Nov 2005 Accepted: 20 Dec 2005 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (2006) 118 (5-6): 533–549. https://doi.org/10.1130/B25856.1 Article history Received: 14 Jun 2005 Revision Received: 21 Nov 2005 Accepted: 20 Dec 2005 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Wayne E. Baldwin, Robert A. Morton, Thomas R. Putney, Michael P. Katuna, M. Scott Harris, Paul T. Gayes, Neal W. Driscoll, Jane F. Denny, William C. Schwab; Migration of the Pee Dee River system inferred from ancestral paleochannels underlying the South Carolina Grand Strand and Long Bay inner shelf. GSA Bulletin 2006;; 118 (5-6): 533–549. doi: https://doi.org/10.1130/B25856.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Several generations of the ancestral Pee Dee River system have been mapped beneath the South Carolina Grand Strand coastline and adjacent Long Bay inner shelf. Deep boreholes onshore and high-resolution seismic-reflection data offshore allow for reconstruction of these paleochannels, which formed during glacial lowstands, when the Pee Dee River system incised subaerially exposed coastal-plain and continental-shelf strata. Paleochannel groups, representing different generations of the system, decrease in age to the southwest, where the modern Pee Dee River merges with several coastal-plain tributaries at Winyah Bay, the southern terminus of Long Bay. Positions of the successive generational groups record a regional, southwestward migration of the river system that may have initiated during the late Pliocene. The migration was primarily driven by barrier-island deposition, resulting from the interaction of fluvial and shoreline processes during eustatic highstands. Structurally driven, subsurface paleotopography associated with the Mid-Carolina Platform High has also indirectly assisted in forcing this migration. These results provide a better understanding of the evolution of the region and help explain the lack of mobile sediment on the Long Bay inner shelf. Migration of the river system caused a profound change in sediment supply during the late Pleistocene. The abundant fluvial source that once fed sand-rich barrier islands was cut off and replaced with a limited source, supplied by erosion and reworking of former coastal deposits exposed at the shore and on the inner shelf. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Publication Year: 2006
Publication Date: 2006-05-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 29
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