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The 4GFOR model – Coupling 4G early diagenesis and benthic foraminiferal ecology

dc.rights.licenseopenen_US
dc.contributor.authorJORISSEN, Frans J.
dc.contributor.authorMEYERS, Stephen R.
dc.contributor.authorKELLY-GERREYN, Boris A.
dc.contributor.authorHUCHET, Louison
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMOURET, Aurelia
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorANSCHUTZ, Pierre
ORCID: 0000-0001-5331-7974
IDREF: 076300331
dc.date.accessioned2023-11-06T11:18:32Z
dc.date.available2023-11-06T11:18:32Z
dc.date.issued2022-01-01
dc.identifier.issn0377-8398en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/184612
dc.description.abstractEnThe 4GFOR model presented in this paper combines the OMEXDIA model of Soetaert et al. (1996) with four theoretical species of benthic foraminifera. The geochemical part of the model simulates the succession of early diagenetic redox reactions in the superficial sediment layers. The four theoretical foraminiferal species, each representing a group of biological species with comparable microhabitats, differ by their limitations with respect to oxygen and nitrate concentration and their ability to feed on different organic matter types. The foraminiferal model is a transformation model in which different proportions of four types of organic matter with different reactivity are attributed to each of the theoretical species. The model has been manually tuned and tested on a large data set from two stations, at 1000 and 550 m depth, in the Bay of Biscay. The model adequately simulates the vertical distribution of shallow, intermediate and deep infaunal species. The 4GFOR model can be used to test several hypotheses concerning foraminiferal ecology. The model has already allowed us to conclude that it is high unlikely that shallow infaunal taxa feed exclusively on the most labile part of the organic matter flux, since it was unable to reproduce the field observations while using this hypothesis. Another important conclusion based on our preliminary model results is that the absence of deep infaunal taxa close to the sediment surface may be explained by their decreasing competitiveness in well oxygenated environments. In the future, the inversion of the 4GFOR model may yield a powerful paleoceanographic tool, enabling us to reconstruct major limiting environmental factors (oxygen and nitrate concentrations; quantity and quality of the organic flux to the ocean floor) from benthic foraminiferal assemblage data.
dc.language.isoENen_US
dc.title.enThe 4GFOR model – Coupling 4G early diagenesis and benthic foraminiferal ecology
dc.title.alternativeMarine Micropaleontologyen_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.marmicro.2021.102078en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalMarine Micropaleontologyen_US
bordeaux.volume170en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamECOBIOCen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Marine%20Micropaleontology&rft.date=2022-01-01&rft.volume=170&rft.eissn=0377-8398&rft.issn=0377-8398&rft.au=JORISSEN,%20Frans%20J.&MEYERS,%20Stephen%20R.&KELLY-GERREYN,%20Boris%20A.&HUCHET,%20Louison&MOURET,%20Aurelia&rft.genre=article


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