Evolution of the Santee/Pee Dee Delta Complex, South Carolina, USA

by Miles O. Hayes, Research Planning, Inc, Columbia, United States,
Walter J. Sexton, Research Planning, Inc, Columbia, United States,
Donald J. Colquhoun, Research Planning, Inc, Columbia, United States,
Timothy L. Eckard, Research Planning, Inc, Columbia, United States,



Document Type: Proceeding Paper

Part of: Deltas of the World

Abstract:

The Santee/Pee Dee delta is located on the north-central portion of the lower coastal plain physiographic province of south carolina, USA, which is underlain by pleistocene strand plain and deltaic sediments. During the Late Wisconsin and earlier sea-level lowstands, major river valleys were incised into the underlying sediments to depths approaching 30 meters (m), responding to base level changes of near 100 m between interglacial and glacial times. Basal fluvial sands grading upwards into deltaic sands and muds filled the drowned river valleys as they were flooded during the Holocene sea-level rise. Morphologically, the delta is classified as a mixed-energy delta.

Subject Headings: Sediment | Sand (hydraulic) | Soil classification | Sea level | Sandy soils | Rivers and streams | Floods | United States | South Carolina | Wisconsin

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