| Abstract: | Water chemistry in both types of aquifer evolves to sodium chloride dominance as a result of fresh water mixing with subsurface brines or seawater present in the deeper downgradient parts of the aquifers. Principal aqueous chemical reactions include feldspar hydrolysis to kaolinite, calcite dissolution, calcium-for-sodium cation exchange, and neoformation of sodium smectite in the downgradient parts of the aquifers. Redox reactions produce dissolved iron concentrations greater than 1 mg/l -1 near the recharge areas. Organic matter is oxidized to CO 2 by iron and sulfate reduction processes. Production of CO 2 by a methanogenic process may also occur. -from Authors |
| Genre: | Article |
| ProdID: | 70013656 |
| Citation Author: | Lee, R. W.; Stickland, D. J. |
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| Citation End Page: | 303 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Water Resources Research |
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| Citation Number Of Pages: | 13 |
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| Citation Search Results Text: | Geochemistry of groundwater in Tertiary and Cretaceous sediments of the southeastern Coastal Plain in eastern Georgia, South Carolina, and southeastern North Carolina ( USA); 1988; Article; Journal; Water Resources Research; Lee, R. W.; Stickland, D. J. |
| Citation Start Page: | 291 |
| Citation Volume: | 24 |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | Geochemistry of groundwater in Tertiary and Cretaceous sediments of the southeastern Coastal Plain in eastern Georgia, South Carolina, and southeastern North Carolina ( USA); 1988; Article; Journal; Water Resources Research; Lee, R. W.; Stickland, D. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1988 00:00 -0600 |
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