Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3047
DC Field | Value | Language |
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dc.contributor.authorall | Gurioli, L.; Now at Geology and Geophysics, University of Hawaii, Honolulu, Hawaii, Usa | en |
dc.contributor.authorall | Zanella, E.; Dipartimento di Scienze della Terra, Università di Torino, Torino, Italy - Alpine Laboratory of Paleomagnetism, Peveragno, Italy | en |
dc.contributor.authorall | Pareschi, M. T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.authorall | Lanza, R.; Dipartimento di Scienze della Terra, Università di Torino, Torino, Italy - Alpine Laboratory of Paleomagnetism, Peveragno, Italy | en |
dc.date.accessioned | 2007-12-11T11:01:26Z | en |
dc.date.available | 2007-12-11T11:01:26Z | en |
dc.date.issued | 2007-05-30 | en |
dc.identifier.uri | http://hdl.handle.net/2122/3047 | en |
dc.description.abstract | To assess ways in which the products of explosive eruptions interact with human settlements, we performed volcanological and rock magnetic analyses on the deposits of the A.D. 79 eruption at the Pompeii excavations (Italy). During this eruption the Roman town of Pompeii was covered by 2.5 m of fallout pumice and then partially destroyed by pyroclastic density currents (PDCs). Anisotropy of magnetic susceptibility measurements performed on the fine matrix of the deposits allowed the quantification of the variations in flow direction and emplacement mechanisms of the parental PDCs that entered the town. These results, integrated with volcanological field investigations, revealed that the presence of buildings, still protruding through the fallout deposits, strongly affected the distribution and accumulation of the erupted products. All of the PDCs that entered the town, even the most dilute ones, were density stratified currents in which interaction with the urban fabric occurred in the lower part of the current. The degree of interaction varied mainly as a function of obstacle height and density stratification within the current. For examples, the lower part of the EU4pf current left deposits up to 3 m thick and was able to interact with 2- to 4-m-high obstacles. However, a decrease in thickness and grain size of the deposits across the town indicates that even though the upper portion of the current was able to decouple from the lower portion, enabling it to flow over the town, it was not able to fully restore the sediment supply to the lower portion in order to maintain the deposition observed upon entry into the town. | en |
dc.language.iso | English | en |
dc.publisher.name | American Geophysical Union | en |
dc.relation.ispartof | Journal of Geophysical Research | en |
dc.relation.ispartofseries | / 112 (2007) | en |
dc.subject | Pompeii | en |
dc.subject | facies | en |
dc.subject | magnetic fabric | en |
dc.subject | pyroclastic density currents | en |
dc.title | Influences of urban fabric on pyroclastic density currents at Pompeii (Italy): 1. Flow direction and deposition | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | B05213 | en |
dc.identifier.URL | http://hdl.handle.net/2122/2361 | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk | en |
dc.identifier.doi | 10.1029/2006JB004444 | en |
dc.description.obiettivoSpecifico | 4.3. TTC - Scenari di pericolosità vulcanica | en |
dc.description.obiettivoSpecifico | 3.6. Fisica del vulcanismo | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Gurioli, L. | en |
dc.contributor.author | Zanella, E. | en |
dc.contributor.author | Pareschi, M. T. | en |
dc.contributor.author | Lanza, R. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Pisa, Pisa, Italy - Now at Geology and Geophysics, University of Hawaii, Honolulu, Hawaii, Usa | en |
dc.contributor.department | Dipartimento di Scienze della Terra, Università di Torino, Torino, Italy - Alpine Laboratory of Paleomagnetism, Peveragno, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Dipartimento di Scienze della Terra, Università di Torino, Torino, Italy - Alpine Laboratory of Paleomagnetism, Peveragno, Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Dipartimento di Scienze della Terra, Università di Torino, Via Valperga Caluso 35, 10125 Torino, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | ALP — Alpine Laboratory of Paleomagnetism, Peveragno, Italy | - |
crisitem.author.orcid | 0000-0002-5066-5153 | - |
crisitem.author.orcid | 0000-0002-9508-7211 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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JGR_Gurioli et al_2007.pdf | 1.95 MB | Adobe PDF |
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