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dc.contributor.authorDuarte, Carlos M.
dc.contributor.authorRøstad, Anders
dc.contributor.authorMichoud, Gregoire
dc.contributor.authorBarozzi, Alan
dc.contributor.authorMerlino, Giuseppe
dc.contributor.authorDelgado Huertas, Antonio Luis
dc.contributor.authorHession, Brian C.
dc.contributor.authorMallon, Francis
dc.contributor.authorAfifi, Abdulakader M.
dc.contributor.authorDaffonchio, Daniele
dc.date.accessioned2020-01-26T05:56:55Z
dc.date.available2020-01-26T05:56:55Z
dc.date.issued2020-01-22
dc.date.submitted2019-05-15
dc.identifier.citationDuarte, C. M., Røstad, A., Michoud, G., Barozzi, A., Merlino, G., Delgado-Huertas, A., … Daffonchio, D. (2020). Discovery of Afifi, the shallowest and southernmost brine pool reported in the Red Sea. Scientific Reports, 10(1). doi:10.1038/s41598-020-57416-w
dc.identifier.doi10.1038/s41598-020-57416-w
dc.identifier.urihttp://hdl.handle.net/10754/661142
dc.description.abstractThe previously uncharted Afifi brine pool was discovered in the eastern shelf of the southern Red Sea. It is the shallowest brine basin yet reported in the Red Sea (depth range: 353.0 to 400.5 m). It presents a highly saline (228 g/L), thalassohaline, cold (23.3 °C), anoxic brine, inhabited by the bacterial classes KB1, Bacteroidia and Clostridia and the archaeal classes Methanobacteria and Deep Sea Euryarcheota Group. Functional assignments deduced from the taxonomy indicate methanogenesis and sulfur respiration to be important metabolic processes in this environment. The Afifi brine was remarkably enriched in dissolved inorganic carbon due to microbial respiration and in dissolved nitrogen, derived from anammox processes and denitrification, according to high δ15N values (+6.88‰, AIR). The Afifi brine show a linear increase in δ18O and δD relative to seawater that differs from the others Red Sea brine pools, indicating a non-hydrothermal origin, compatible with enrichment in evaporitic environments. Afifi brine was probably formed by venting of fossil connate waters from the evaporitic sediments beneath the seafloor, with a possible contribution from the dehydration of gypsum to anhydrite. Such origin is unique among the known Red Sea brine pools.
dc.description.sponsorshipThis research was funded with King Abdullah University of Science and Technology funding through baseline funding and Red Sea Research Center competitive fund to C.M.D. and D.D. We thank J.C. Santamarina, M. Terzariol, K. Pigeon, A. Granados and J.M. Arrieta, and the crew of R/V Tuwal for their help
dc.publisherSpringer Science and Business Media LLC
dc.relation.urlhttp://www.nature.com/articles/s41598-020-57416-w
dc.relation.urlhttps://www.nature.com/articles/s41598-020-57416-w.pdf
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleDiscovery of Afifi, the shallowest and southernmost brine pool reported in the Red Sea
dc.typeArticle
dc.contributor.departmentAli I. Al-Naimi Petroleum Engineering Research Center (ANPERC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentBioscience Program
dc.contributor.departmentExtreme Systems Microbiology Lab
dc.contributor.departmentMarine Operations
dc.contributor.departmentMarine Science Program
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.identifier.journalScientific Reports
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionInstituto Andaluz de Ciencias de la Tierra, CSIC-UGR, Avda. de las Palmeras 4, 18100, Armilla, Spain.
kaust.personDuarte, Carlos M.
kaust.personRøstad, Anders
kaust.personMichoud, Gregoire
kaust.personBarozzi, Alan
kaust.personMerlino, Giuseppe
kaust.personDelgado Huertas, Antonio Luis
kaust.personHession, Brian C.
kaust.personMallon, Francis
kaust.personAfifi, Abdulakader M.
kaust.personDaffonchio, Daniele
dc.date.accepted2019-12-31
refterms.dateFOA2020-01-26T05:57:42Z
dc.date.published-online2020-01-22
dc.date.published-print2020-12


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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
Except where otherwise noted, this item's license is described as This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.