Sandhills (Carolina)
The Sandhills or Carolina Sandhills is a 10-35 mi wide physiographic region within the U.S. Atlantic Coastal Plain province, along the updip (inland) margin of this province in the States of North Carolina, South Carolina, and Georgia. The extent of the Carolina Sandhills is shown in maps of the ecoregions of North Carolina, South Carolina, and Georgia. Geology The unconsolidated sand of the Carolina Sandhills is mapped as the Quaternary Pinehurst Formation, and is interpreted as eolian (wind-blown) sand sheets and dunes that were mobilized episodically from approximately 75,000 to 6,000 years ago. Most of the published luminescence ages from the sand are coincident with the last glaciation, a time when the southeastern United States was characterized by colder air temperatures, stronger winds, and less vegetation. The Carolina Sandhills region also contains outcrops of Cretaceous-age (~100 million years old) strata of sand, sandstone, and clay that are interpreted as f ...
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