Patterns of groundwater salinity changes in a deep continental-oceanic transect off the southeastern Atlantic coast of the U.S.A.

Journal of Hydrology
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Abstract

Investigations of formation-fluid salinities in a transect from western Georgia to the edge of the Blake Plateau off the coast of Georgia show surprisingly similar hydrochemical features offshore and onshore. A fresh-brackish wedge of groundwater (<25 g/kg total dissolved solids) lies beneath the shelf to a depth of 900 m. On land, brackish waters extend to a maximum depth of 1.2 km below sea level in Lowndes County, Georgia. In deeper horizons, hypersaline brines (> 100 g/kg) occur in Lower Cretaceous (?) strata. These strata have a pronounced evaporitic (anhydritic) character in the offshore segment. Strong salinity gradients in interstitial waters signify buried evaporite deposits at drill sites beneath the Blake Plateau. 

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Publication type Article
Publication Subtype Journal Article
Title Patterns of groundwater salinity changes in a deep continental-oceanic transect off the southeastern Atlantic coast of the U.S.A.
Series title Journal of Hydrology
DOI 10.1016/0022-1694(81)90154-2
Volume 54
Issue 1-3
Year Published 1981
Language English
Publisher Elsevier
Description 11 p.
First page 95
Last page 105
Country United States
State Florida, Georgia, South Carolina
Other Geospatial southeastern Atlantic coast of the U.S.A.
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