Geologic framework of the long bay inner shelf: implications for coastal evolution in South Carolina

W. Barnhardt; J. Denny; W. Baldwin; W. Schwab; R. Morton; P. Gayes; N. Driscoll

doi:10.1061/40926(239)169

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Geologic framework of the long bay inner shelf: implications for coastal evolution in South Carolina

W. Barnhardt·J. Denny·W. Baldwin·W. Schwab·R. Morton·P. Gayes·N. Driscoll

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Abstract

The inner continental shelf off northern South Carolina is a sediment-limited environment characterized by extensive hardground areas, where coastal plain strata and ancient channel-fill deposits are exposed at the sea floor. Holocene sand is concentrated in large shoals associated with active tidal inlets, an isolated shore-detached sand body, and a widespread series of low-relief sand ridges. The regional geologic framework is a strong control on the production, movement and deposition of sediment. High-resolution geologic mapping of the sea floor supports conceptual models indicative of net southwestward sediment transport along the coast.

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Source-reported bounding extent: 32.0346° to 35.2155° latitude; -83.3533° to -78.5408° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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W. Barnhardt, J. Denny, W. Baldwin, W. Schwab, R. Morton, P. Gayes, N. Driscoll. 2012-04-26. Geologic framework of the long bay inner shelf: implications for coastal evolution in South Carolina. https://doi.org/10.1061/40926(239)169

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