Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3202
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dc.contributor.authorallZanella, E.; Dipartimento di Scienze della Terra, Università di Torino, Torino, Italy - Alpine Laboratory of Paleomagnetism, Peveragno, Italyen
dc.contributor.authorallGurioli, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.contributor.authorallPareschi, M. T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.contributor.authorallLanza, R.; Dipartimento di Scienze della Terra, Università di Torino, Torino, Italy - Alpine Laboratory of Paleomagnetism, Peveragno, Italyen
dc.date.accessioned2007-12-13T12:16:09Zen
dc.date.available2007-12-13T12:16:09Zen
dc.date.issued2007-05-30en
dc.identifier.urihttp://hdl.handle.net/2122/3202en
dc.description.abstractDuring the A.D. 79 eruption of Vesuvius, Italy, the Roman town of Pompeii was covered by 2.5 m of pyroclastic fall pumice and then partially destroyed by pyroclastic density currents (PDCs). Thermal remanent magnetization measurements performed on the lithic and roof tile fragments embedded in the PDC deposits allow us to quantify the variations in the temperature (Tdep) of the deposits within and around Pompeii. These results reveal that the presence of buildings strongly influenced the deposition temperature of the erupted products. The first two currents, which entered Pompeii at a temperature around 300–360°C, show drastic decreases in the Tdep, with minima of 100–140°C, found in the deposits within the town. We interpret these decreases in temperature as being the result of localized interactions between the PDCs and the city structures, which were only able to affect the lower part of the currents. Down flow of Pompeii, the lowermost portion of the PDCs regained its original physical characteristics, emplacing hot deposits once more. The final, dilute PDCs entered a town that was already partially destroyed by the previous currents. These PDCs left thin ash deposits, which mantled the previous ones. The lack of interaction with the urban fabric is indicated by their uniform temperature everywhere. However, the relatively high temperature of the deposits, between 140 and 300°C, indicates that even these distal, thin ash layers, capped by their accretionary lapilli bed, were associated with PDCs that were still hot enough to cause problems for unsheltered people.en
dc.language.isoEnglishen
dc.publisher.nameAmerican Geophysical Unionen
dc.relation.ispartofJournal of Geophysical Researchen
dc.relation.ispartofseries/112 (2007)en
dc.subjectPompeiien
dc.subjecttemperatureen
dc.subjectmagnetic fabricen
dc.subjectpyroclastic density currentsen
dc.titleInfluences of urban fabric on pyroclastic density currents at Pompeii (Italy): 2. Temperature of the deposits and hazard implicationsen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumberB05214en
dc.identifier.URLhttp://hdl.handle.net/2122/2370en
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risken
dc.identifier.doi10.1029/2006JB004775en
dc.description.obiettivoSpecifico4.3. TTC - Scenari di pericolosità vulcanicaen
dc.description.obiettivoSpecifico3.6. Fisica del vulcanismoen
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorZanella, E.en
dc.contributor.authorGurioli, L.en
dc.contributor.authorPareschi, M. T.en
dc.contributor.authorLanza, R.en
dc.contributor.departmentDipartimento di Scienze della Terra, Università di Torino, Torino, Italy - Alpine Laboratory of Paleomagnetism, Peveragno, Italyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.contributor.departmentDipartimento di Scienze della Terra, Università di Torino, Torino, Italy - Alpine Laboratory of Paleomagnetism, Peveragno, Italyen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptDipartimento di Scienze della Terra, Università di Torino, Via Valperga Caluso 35, 10125 Torino, Italy-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia-
crisitem.author.deptALP — Alpine Laboratory of Paleomagnetism, Peveragno, Italy-
crisitem.author.orcid0000-0002-9508-7211-
crisitem.author.orcid0000-0002-5066-5153-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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