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dc.contributor.authorVolvoikar, S.P.
dc.contributor.authorMazumdar, A.
dc.contributor.authorPeketi, A.
dc.contributor.authorDewangan, P.
dc.contributor.authorSawant, B.
dc.contributor.authorManaskanya, A.
dc.contributor.authorGoswami, H.
dc.contributor.authorDas, D.
dc.contributor.authorPujari, S.
dc.date.accessioned2020-12-31
dc.date.accessioned2021-02-09T10:13:16Z
dc.date.available2020-07-25
dc.date.available2021-02-09T10:13:16Z
dc.date.issued2020
dc.identifier.citationMarine and Petroleum Geology, vol.118; 2020; Article no: 104408
dc.identifier.issn0264-8172
dc.identifier.otherhttps://www.sciencedirect.com/science/article/pii/S0264817220301914
dc.identifier.urihttps://doi.org/10.1016/j.marpetgeo.2020.104408
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8459
dc.descriptionIF2019 - 3.79
dc.description.abstractWe report for the first time, contrasting sulfidization profiles in a sedimentary sequence comprising of clay-silt turbidites and hemipelagic dominated deposits in a channel-levee complex of the middle Bengal Fan. The results show the focusing of acid volatile sulfur (AVS), elemental sulfur contents and marked increase in total reducible sulfur concentrations within the clay-silt turbidite rich zone relative to the overlying hemipelgaic rich zone. The large spread in delta34SAVS (-36.6 to +64.4‰) and delta34SCRS (-43.7 to +39‰) coupled with 34S enrichment spikes in turbidites dominated zone are tell-tale signatures of rapid consumption of pore-water SO42- reduction in a closed system conditions created by turbidite depositions. In contrast, delta34SCRS values ranging from -50 to +2.8‰ recorded in the hemipelagic rich zone suggest dominantly early-diagenetic pyritization close to the sediment-water interface. The present study signifies the importance of turbidite fan sedimentation in the biogeochemical cycle of sulfur, carbon, and iron and enhances the scope of global Fe-S-C burial estimation in the marine realm.
dc.languageen
dc.publisherElsevier Ltd
dc.relation.ispartofMar Pet Geol
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleContrasting sulfidization in the turbidite and hemipelagic sediments of Bengal Fan
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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