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http://hdl.handle.net/2122/4502
DC Field | Value | Language |
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dc.contributor.authorall | Pepe, S.; Istituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR-Napoli, Italy | en |
dc.contributor.authorall | Solaro, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.authorall | Ricciardi, G. P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.authorall | Tizzani, P.; Istituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR-Napoli, Italy | en |
dc.date.accessioned | 2008-12-09T08:56:02Z | en |
dc.date.available | 2008-12-09T08:56:02Z | en |
dc.date.issued | 2008 | en |
dc.identifier.uri | http://hdl.handle.net/2122/4502 | en |
dc.description.abstract | We investigated the existence of a fractal law (power law) distribution of size pyroclastic fragments erupted during the fallout phase of the 79 A.D. Plinian eruption at Mt. Vesuvius. In particular, we performed a particle size distribution analysis on 18 white and grey pumice samples collected in six sites distributed in the SW sector of Mt. Vesuvius. Our measurements show that the fragmentation of samples in the investigated range (from 32 mm to 850 μm) follows a power law, guaranteeing the scale invariance of the process. The relationship frequency-size distribution of the fragments is verified independently from the nature (i.e., pumices and lithics) and stratigraphic height of the considered samples in the pyroclastic deposit. Therefore, the fractal fragmentation theory can be indicated for evaluating the relationship between the intensity of fragmentation (fractal dimension D) and eruption energy. In this way the apparent chaotic distribution of the particles in the fallout deposits hides a self-organized complexity revealed by the retrieved power law distribution. We further remark that a key aspect of our analysis is the founded evidence that the fractal dimension of the lithics is systematically greater than that of the pumices. | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier | en |
dc.relation.ispartof | Journal of Volcanology and Geothermal Research | en |
dc.relation.ispartofseries | /177(2008) | en |
dc.subject | fragmentation | en |
dc.subject | power law distribution | en |
dc.subject | fractal dimension | en |
dc.subject | scale invariant | en |
dc.title | On the fractal dimension of the fallout deposits: A case study of the 79 A.D. Plinian eruption at Mt. Vesuvius | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 288–299 | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques | en |
dc.identifier.doi | 10.1016/j.jvolgeores.2008.01.023 | en |
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Temporal variations in column height and magma discharge rate during the 79 A.D. eruption of Vesuvius. Geological Society of America Bulletin 99, 303–314. Cioni, R., Marianelli, P., Sbrana, A., 1992. Dynamics of the A.D. 79 eruption: stratigraphic, sedimentological and geochemical on the successions from the Somma–Vesuvius southern and eastern sectors. Acta Vulcanologia 2, 109–123. Cioni, R., Marianelli, P., Sbrana, A., 1999. Pyroclastic deposits as a guide for reconstructing the multi-stage evolution of the Somma–Vesuvius caldera. Bulletin of Volcanology 60, 207. Cioni, R., Marianelli, P., Santacroce, R., Sbrana, A., 2000. Plinian eruptions. In: Sigurdsson, H. (Ed.), Encyclopaedia of Volcanoes. Academic Press. Fujiwara, A., Kamimoto, G., Tsukamoto, A., 1977. Destruction of basaltic bodies by high velocity impact. Icarus 31, 277–288. Gurioli, L., Cioni, R., Sbrana, A., Zanella, E., 2002. 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Wiley and Sons, Chichester, England. Turcotte, D.L., 1986a. A fractal model of crustal deformation. Tectonophysics 132, 261–269. Turcotte, D.L., 1986b. Fractals and fragmentation. Journal of Geophysical Research 91, 1921–1926. Turcotte, D.L., 1992. Fractals and Chaos in Geology and Geophysics. Cambridge University Press, U.K. 216 pp. Turcotte, D.L., 1997. Fractals and Chaos in Geology and Geophysics, 2nd edition. Cambridge University Press, U.K. 398 pp. Wohletz, K.H., Sheridan, M.F., Brown, W.K., 1989. Particle-size distribution and the sequential fragmentation transport-theory applied to volcanic ash. Journal of Geophysical Research 94, 15703–15721. | en |
dc.description.obiettivoSpecifico | 3.6. Fisica del vulcanismo | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Pepe, S. | en |
dc.contributor.author | Solaro, G. | en |
dc.contributor.author | Ricciardi, G. P. | en |
dc.contributor.author | Tizzani, P. | en |
dc.contributor.department | Istituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR-Napoli, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.department | Istituto per il Rilevamento Elettromagnetico dell'Ambiente, CNR-Napoli, 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 | CNR-IREA | - |
crisitem.author.dept | IREA-CNR, Naples, Italy. | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.dept | CNR-IREA | - |
crisitem.author.orcid | 0000-0002-8692-7258 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
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