Title |
Stable Isotope Enrichment in Paleowaters of the Southeast Atlantic Coastal Plain, United States
|
---|---|
Published in |
Science, December 1993
|
DOI | 10.1126/science.262.5142.2016 |
Pubmed ID | |
Authors |
L. Niel Plummer |
Abstract |
Paleowaters from the Floridan aquifer system in the southeastern Atlantic coastal plain have higher D/H and (18)O/(16)O ratios than local Holocene ground water. Maximum delta(18)O enrichments in ground water having adjusted radiocarbon ages of 20,000 to 26,000 years are 0.7 to 2.3 per mil. The trend in isotopic enrichment in paleowaters is the reverse of that normally observed in continental glacial age ground water. Dissolved nitrogen and argon concentrations indicate, however, that the average recharge temperature was 5.3 degrees C cooler than that today. The data indicate cool conditions in the southeast Atlantic coastal plain during the last glacial maximum, with recharge limited primarily to late summer tropical cyclones and hurricanes. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Australia | 1 | 4% |
Unknown | 25 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 8 | 31% |
Professor | 4 | 15% |
Student > Doctoral Student | 3 | 12% |
Student > Ph. D. Student | 3 | 12% |
Unspecified | 2 | 8% |
Other | 1 | 4% |
Unknown | 5 | 19% |
Readers by discipline | Count | As % |
---|---|---|
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Environmental Science | 3 | 12% |
Arts and Humanities | 2 | 8% |
Unspecified | 2 | 8% |
Engineering | 2 | 8% |
Other | 1 | 4% |
Unknown | 6 | 23% |