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Birth and Death of an Offshore Bar
Sankey L. Blanton, Jr., (1)
The coast of southeastern North Carolina is protected by a system of long, narrow sand islands. These islands are very stable geographically, despite very recent submergence. Partially buried forests indicate that the islands have been maintained by the sea. They are thought to have been either a maintained submerged Pleistocene beach ridge or to have been generated seaward by excessive bottom sediments and severe storms. There is considerable evidence that not only did they originate seaward from the mainland, but that the present mainland is an abandoned offshore bar. This creates a paradox of regressive sediments in a transgressive sea.
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