LUMINESCENCE DATING ON THE ATLANTIC COASTAL PLAIN OF THE SOUTHEASTERN UNITED STATES

2017 ◽  
Author(s):  
James K. Feathers ◽  
◽  
Christopher R. Moore
2016 ◽  
Vol 86 (3) ◽  
pp. 271-286 ◽  
Author(s):  
Christopher S. Swezey ◽  
Bradley A. Fitzwater ◽  
G. Richard Whittecar ◽  
Shannon A. Mahan ◽  
Christopher P. Garrity ◽  
...  

AbstractThe Carolina Sandhills is a physiographic region of the Atlantic Coastal Plain province in the southeastern United States. In Chesterfield County (South Carolina), the surficial sand of this region is the Pinehurst Formation, which is interpreted as eolian sand derived from the underlying Cretaceous Middendorf Formation. This sand has yielded three clusters of optically stimulated luminescence ages: (1) 75 to 37 thousand years ago (ka), coincident with growth of the Laurentide Ice Sheet; (2) 28 to 18 ka, coincident with the last glacial maximum (LGM); and (3) 12 to 6 ka, mostly coincident with the Younger Dryas through final collapse of the Laurentide Ice Sheet. Relict dune morphologies are consistent with winds from the west or northwest, coincident with modern and inferred LGM January wind directions. Sand sheets are more common than dunes because of effects of coarse grain size (mean range: 0.35-0.59 mm) and vegetation. The coarse grain size would have required LGM wind velocities of at least 4-6 m/sec, accounting for effects of colder air temperatures on eolian sand transport. The eolian interpretation of the Carolina Sandhills is consistent with other evidence for eolian activity in the southeastern United States during the last glaciation.


1986 ◽  
Vol 91 (B2) ◽  
pp. 2123 ◽  
Author(s):  
J. K. Costain ◽  
J. A. Speer ◽  
L. Glover ◽  
L. Perry ◽  
S. Dashevsky ◽  
...  

Author(s):  
Christopher R. Moore ◽  
Mark J. Brooks ◽  
I. Randolph Daniel ◽  
Andrew H. Ivester ◽  
James K. Feathers ◽  
...  

Archaeological site investigations on the South Atlantic Coastal Plain have revealed stratified cultural remains in sand deposits of mixed aeolian and fluvial origins, aeolian sand sheets and dunes, alluvial terraces, and Carolina Bay rims. These sites are typically shallow but have yielded discernible archaeostratigraphy within sand dominated deposits by using luminescence dating (OSL), AMS radiocarbon dating, and close interval sediment sampling. Periods of site burial are linked to regional and global paleoclimate records, including Bond events, and provide broader reconstructions for human ecology and periods of site burial.


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