- Usage in publication:
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- Dean Swamp Member
- Modifications:
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- Original reference
- Dominant lithology:
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- Clay
- Sand
- AAPG geologic province:
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- Atlantic Coast basin
Summary:
Dean Swamp Member of Wicomico Formation. Upper Wicomico divided into five members: Toney Bay, Dean Swamp, Sandridge, Wassamassaw Swamp, and Four Hole. [Dean Swamp is] a clay member developed from northwest toward southeast with decreasing coarse- and medium-grained sand similar to that occurring in Toney Bay Member and then increasing fine sand. Drill-hole samples show definite thin laminations over about 10 to 20 feet of sample. Member represents lagoonal and tidal marsh sediments deposited after deposition of Sandridge Member. Age is early Pleistocene.
Named from Dean Swamp, Eutawville quadrangle, eastern SC.
Source: US geologic names lexicon (USGS Bull. 1350, p. 196).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).