Show simple item record

dc.contributor.authorFontugne, Michel
dc.contributor.authorGuichard, François
dc.contributor.authorBentaleb, Ilham
dc.contributor.authorStrechie, Claudia
dc.contributor.authorLericolais, Gilles
dc.date.accessioned2021-02-11T21:23:31Z
dc.date.available2021-02-11T21:23:31Z
dc.date.issued2009-01-01
dc.identifier.citationFontugne, M., Guichard, F., Bentaleb, I., Strechie, C., & Lericolais, G. (2009). Variations in 14C reservoir ages of Black Sea waters and sedimentary organic carbon during anoxic periods: Influence of photosynthetic versus chemoautotrophic production. Radiocarbon, 51(3), 969-976.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200034044
dc.identifier.urihttp://hdl.handle.net/10150/654383
dc.description.abstractRadiocarbon activity of dissolved inorganic carbon has been measured in the northwestern Black Sea. Both continental shelf and open-sea profiles show that surface waters are in equilibrium with the atmosphere. The observed distribution of 14C activity shows a weak contribution of the deep 14C-depleted CO2 to the photic zone. Such a distribution of 14C within the water column is unable to explain the aging of sedimentary organic matter and reservoir ages greater than 500 yr. A contribution of production by chemoautotrophic bacteria feeding on 14C-depleted methane at the boundary of the oxic and anoxic zones is a realistic hypothesis. Also, a contribution to sedimentary organic carbon estimated at 15% of the photosynthetic primary production could explain 14C reservoir ages greater than 1300 yr.
dc.language.isoen
dc.publisherDepartment of Geosciences, The University of Arizona
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © by the Arizona Board of Regents on behalf of the University of Arizona. All rights reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleVariations in 14C Reservoir Ages of Black Sea Waters and Sedimentary Organic Carbon during Anoxic Periods: Influence of Photosynthetic Versus Chemoautotrophic Production
dc.typeArticle
dc.typetext
dc.identifier.journalRadiocarbon
dc.description.collectioninformationThe Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume51
dc.source.issue3
dc.source.beginpage969
dc.source.endpage976
refterms.dateFOA2021-02-11T21:23:31Z


Files in this item

Thumbnail
Name:
3556-3316-1-PB.pdf
Size:
3.806Mb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record