Chemical and carbon isotopic composition of dissolved organic carbon in a regional confined methanogenic aquifer
Isotopes in Environmental and Health Studies
By: R. Aravena, L.I. Wassenaar, and E.C. Spiker
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Abstract
This study demonstrates the advantage of a combined use of chemical and isotopic tools to understand the dissolved organic carbon (DOC) cycle in a regional confined methanogenic aquifer. DOC concentration and carbon isotopic data demonstrate that the soil zone is a primary carbon source of groundwater DOC in areas close to recharge zones. An in-situ DOC source linked to organic rich sediments present in the aquifer matrix is controlling the DOC pool in the central part of the groundwater flow system. DOC fractions, 13C-NMR on fulvic acids and 14C data on DOC and CH4 support the hypothesis that the in-situ DOC source is a terrestrial organic matter and discard the Ordovician bedrock as a source of DOC. ?? 2004 Taylor and Francis Ltd.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Chemical and carbon isotopic composition of dissolved organic carbon in a regional confined methanogenic aquifer |
| Series title | Isotopes in Environmental and Health Studies |
| DOI | 10.1080/10256010410001671050 |
| Volume | 40 |
| Issue | 2 |
| Year Published | 2004 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Isotopes in Environmental and Health Studies |
| First page | 103 |
| Last page | 114 |
| Google Analytic Metrics | Metrics page |