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Postglacial organic carbon accumulation in coastal zones-A possible cause for varying atmospheric CO2 levels: preliminary data from SW Portugal

2004Journal article Restricted
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dc.contributor.authorBoski, T.
dc.contributor.authorMoura, Delminda
dc.contributor.authorCorreia, Victor
dc.contributor.authorMartins, H.
dc.contributor.authorVeiga-Pires, C.
dc.contributor.authorCamacho, Sarita
dc.contributor.authorWilamowski, A.
dc.date.accessioned2013-03-25T14:51:34Z
dc.date.available2013-03-25T14:51:34Z
dc.date.issued2004
dc.description.abstractWe report the preliminary data on organic carbon accumulation rates which are being determined in the infill sequences of several estuaries, in the coastal fringe of Algarve (S Portugal). The so far analysed sedimentary sequences of Guadiana River estuary represent the time span from ca 10000 yr. cal BP to present. The obtained data indicate that until ca 7000 yr. cal BP, i.e. during the period of fast sea level rise, organic carbon accumulated at an average rate ranging from 160 to 320 gm yr . In the Middle and Upper Holocene, when the sea level rise was not exceeding 25cm/century the organic carbon accumulation rate dropped to an average value of ca 50 gm yr . The analysis of gas bubble content from ice cores indicates that the atmospheric CO concentration evolved during the last glacial/interglacial transition, from 180 ppv minimum during the LGM to the 270 ppmV preindustrial level. Considering that the terrestrial particulate organic matter is an essential fertiliser of the ocean, it is postulated that enhanced burial of POM in the coastal areas during the period of fast postglacial sea level rise is responsible for decrease of primary productivity in the open ocean and consequent transfer of 200 Gt. ofCto the atmosphere.por
dc.description.sponsorshipFundação para a Ciência e a Tecnologia. REFLECSproject within the framework of POCTI programepor
dc.identifier.issn0749-0208
dc.identifier.otherAUT: DMO00293; TBO00513;
dc.identifier.urihttp://hdl.handle.net/10400.1/2628
dc.language.isoengpor
dc.peerreviewedyespor
dc.relation.publisherversionhttp://siaiacad09.univali.br/ics2004/arquivos/393_boski.pdf
dc.subjectSea level risepor
dc.subjectHolocenepor
dc.titlePostglacial organic carbon accumulation in coastal zones-A possible cause for varying atmospheric CO2 levels: preliminary data from SW Portugalpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1868por
oaire.citation.startPage1864por
oaire.citation.titleJournal of Coastal Researchpor
oaire.citation.volumeSI 39por
person.familyNameBoski
person.familyNameMoura
person.familyNameVeiga-Pires
person.familyNameCamacho
person.givenNameTomasz
person.givenNameDelminda
person.givenNameCristina
person.givenNameSarita
person.identifier113325
person.identifier.ciencia-id1416-B317-51D1
person.identifier.ciencia-id4A1F-CEDA-E66C
person.identifier.ciencia-id9B1A-D006-F736
person.identifier.orcid0000-0003-2462-4179
person.identifier.orcid0000-0002-0952-6805
person.identifier.orcid0000-0002-9323-0723
person.identifier.orcid0000-0002-2986-7156
person.identifier.ridB-5144-2008
person.identifier.ridE-9559-2015
person.identifier.scopus-author-id6602267486
person.identifier.scopus-author-id15048413000
person.identifier.scopus-author-id7801372905
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationa857b0c7-90ab-473b-a62e-e92b452e604d
relation.isAuthorOfPublication0e952296-2501-4565-b9b5-5fad918ef8dd
relation.isAuthorOfPublicationd1541efa-0eaa-48dc-aea3-a1e64aa0065a
relation.isAuthorOfPublication708d6c78-57d3-40cb-bf28-705f838e69e2
relation.isAuthorOfPublication.latestForDiscovery708d6c78-57d3-40cb-bf28-705f838e69e2

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