Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8880
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dc.contributor.authorallOlgun, N.; Dynamics of the Ocean Floor Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germanyen
dc.contributor.authorallDuggen, S.; Dynamics of the Ocean Floor Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germanyen
dc.contributor.authorallAndronico, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.contributor.authorallKutterolf, S.; Dynamics of the Ocean Floor Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germanyen
dc.contributor.authorallCroot, P. L.; Marine Biogeochemistry Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germanyen
dc.contributor.authorallGiammanco, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.contributor.authorallCensi, P.; Dipartimento di Scienze della Terra e del Mare (DiSTeM), Università di Palermo, Via Archirafi, 36 90123 Palermo, Italyen
dc.contributor.authorallRandazzo, L.; Dipartimento di Scienze della Terra e del Mare (DiSTeM), Università di Palermo, Via Archirafi, 36 90123 Palermo, Italyen
dc.date.accessioned2014-01-27T07:30:26Zen
dc.date.available2014-01-27T07:30:26Zen
dc.date.issued2013en
dc.identifier.urihttp://hdl.handle.net/2122/8880en
dc.description.abstractAtmospheric deposition of volcanic ash has recently been recognized as an important nutrient source into the surface ocean. Mount Etna (Italy), one of the world's most active volcanoes, is located in the oligotrophic Mediterranean Sea (MedSea). Despite the active volcanismonMount Etna, the biogeochemical impacts of volcanic ash fallouts on the marine primary productivity (MPP) remain largely unknown. Here we present the results of seawater nutrient release experiments with volcanic ash samples fromMount Etna that have been collected during different eruptive episodes between 2001 and 2007. Our results show that volcanic ash fromMount Etna releases significant amounts of fixed-N (35–855 nmol/g), P (7–970 nmol/g), Si (3–2060 nmol/g), Fe (10–130 nmol/g) and Zn (b21 nmol/g). We further estimated an example representative of ash-fall from Etna based on the case-study focusing on 4–5 November 2002 activity, by using the general relation between the thicknesses of the ash deposits and the ash depositional areas. Etna explosive eruptions can transport volcanic ash as far as 800 km,with ashemissions exceeding the particle flux during dust stormevents (of 10 g/m2 input) as far as 400 km downwind fromthe volcano. Our results emphasize that Etna ash can provide a significant supply of nutrients, which can favor theMPP in the central MedSea.en
dc.language.isoEnglishen
dc.publisher.nameElsevier Science Limiteden
dc.relation.ispartofMarine chemistryen
dc.relation.ispartofseries/152 (2013)en
dc.subjectOceanic fertilizationen
dc.subjectVolcanic ashen
dc.subjectMount Etnaen
dc.subjectMediterranean Seaen
dc.subjectPhosphateen
dc.subjectNitrateen
dc.subjectIronen
dc.titlePossible impacts of volcanic ash emissions of Mount Etna on the primary productivity in the oligotrophic Mediterranean Sea: Results from nutrient-release experiments in seawateren
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber32-42en
dc.subject.INGV03. Hydrosphere::03.03. Physical::03.03.01. Air/water/earth interactionsen
dc.identifier.doi10.1016/j.marchem.2013.04.004en
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dc.description.obiettivoSpecifico1.8. Osservazioni di geofisica ambientaleen
dc.description.journalTypeJCR Journalen
dc.description.fulltextrestricteden
dc.relation.issn0304-4203en
dc.relation.eissn1872-7581en
dc.contributor.authorOlgun, N.en
dc.contributor.authorDuggen, S.en
dc.contributor.authorAndronico, D.en
dc.contributor.authorKutterolf, S.en
dc.contributor.authorCroot, P. L.en
dc.contributor.authorGiammanco, S.en
dc.contributor.authorCensi, P.en
dc.contributor.authorRandazzo, L.en
dc.contributor.departmentDynamics of the Ocean Floor Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germanyen
dc.contributor.departmentDynamics of the Ocean Floor Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germanyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
dc.contributor.departmentDynamics of the Ocean Floor Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germanyen
dc.contributor.departmentMarine Biogeochemistry Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germanyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
dc.contributor.departmentDipartimento di Scienze della Terra e del Mare (DiSTeM), Università di Palermo, Via Archirafi, 36 90123 Palermo, Italyen
dc.contributor.departmentDipartimento di Scienze della Terra e del Mare (DiSTeM), Università di Palermo, Via Archirafi, 36 90123 Palermo, Italyen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptDynamics of the Ocean Floor Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germany-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.deptDynamics of the Ocean Floor Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germany-
crisitem.author.deptMarine Biogeochemistry Division, Helmholtz-Center for Ocean Research, GEOMAR, Kiel, Germany-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.deptDipartimento DiSTeM, Università di Palermo-
crisitem.author.deptuniversità di palermo-
crisitem.author.orcid0000-0002-8333-1547-
crisitem.author.orcid0000-0003-2588-1441-
crisitem.author.orcid0000-0002-9583-7692-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent03. Hydrosphere-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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