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Processes affecting δ34S and δ18O values of dissolved sulfate in alluvium along the Canadian River, central Oklahoma, USA

Dates

Year
2009

Citation

Tuttle, Michele L W, Breit, George N, and Cozzarelli, Isabelle M, 2009, Processes affecting δ34S and δ18O values of dissolved sulfate in alluvium along the Canadian River, central Oklahoma, USA: Chemical Geology, v. 265, iss. 3–4, p. 455-467.

Summary

The δ34S and δ18O values for dissolved sulfate in groundwater are commonly used in aquifer studies to identify sulfate reservoirs and describe biogeochemical processes. The utility of these data, however, often is compromised by mixing of sulfate sources within reservoirs and isotope fractionation during sulfur redox cycling. Our study shows that, after all potential sulfate sources are identified and isotopically characterized, the δ34SSO4 and δ18OSO4 values differentiate processes such as sulfate-source mixing, sulfide oxidation, barite dissolution, and organosulfur decomposition. During bacterial reduction of sulfate, the values reflect kinetic sulfur isotope fractionation and exchange of oxygen isotopes between sulfate and water. [...]

Contacts

Communities

  • USGS National Research Program

Tags

Provenance

Added to ScienceBase on Mon Mar 18 12:09:10 MDT 2013 by processing file <b>Biogeochemical Controls on Organic Contaminant Degradation in Heterogeneous Near Surface Environments.xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd3381">https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd3381</a>

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1016/j.chemgeo.2009.05.009

Citation Extension

journalChemical Geology
parts
typePages
value455-467
typeVolume
value265
typeIssue
value3–4
citationTypeJournal Article

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