Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/10029
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Tarquini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.authorall | de' Michieli Vitturi, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.date.accessioned | 2015-06-22T06:54:15Z | en |
dc.date.available | 2015-06-22T06:54:15Z | en |
dc.date.issued | 2014 | en |
dc.identifier.uri | http://hdl.handle.net/2122/10029 | en |
dc.description.abstract | The evolution of lava flows emplaced on Mount Etna (Italy) in September 2004 is examined in detail through the analysis ofmorphometricmeasurements of flow units. The growth of the main channelized flow is consistent with a layering of lava blankets, which maintains the initial geometry of the channel (although levees are widened and raised), and is here explicitly related to the repeated overflow of lava pulses. A simple analytical model is introduced describing the evolution of the flow level in a channelized flow unit fed by a fluctuating supply. The model, named FLOWPULSE, shows that a fluctuation in the velocity of lava extrusion at the vent triggers the formation of pulses, which become increasingly high the farther they are from the vent, and are invariably destined to overflow within a given distance. The FLOWPULSE simulations are in accordance with the observed morphology, characterized by a very flat initial profile followed by a massive increase in flow unit cross-section area between 600 and 700 m downflow. The modeled emplacement dynamics provides also an explanation for the observed substantial “loss” of the original flowing mass with increasing distance from the vent. | en |
dc.language.iso | English | en |
dc.publisher.name | Springer Berlin Heidelberg | en |
dc.relation.ispartof | Bulletin of volcanology | en |
dc.relation.ispartofseries | /76 (2014) | en |
dc.subject | Lava flows . Emplacement dynamics . Lava flow modeling . Mount Etna | en |
dc.title | Influence of fluctuating supply on the emplacement dynamics of channelized lava flows | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.description.pagenumber | 801 | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring | en |
dc.identifier.doi | 10.1007/s00445-014-0801-2 | en |
dc.description.obiettivoSpecifico | 3V. Dinamiche e scenari eruttivi | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.relation.issn | 0258-8900 | en |
dc.relation.eissn | 1432-0819 | en |
dc.contributor.author | Tarquini, S. | en |
dc.contributor.author | de' Michieli Vitturi, M. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.orcid | 0000-0002-8064-621X | - |
crisitem.author.orcid | 0000-0002-6750-9245 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
BV_Tarquini_de'MichieliVItturi_2_post_04a.pdf | main article | 3.2 MB | Adobe PDF | View/Open |
WEB OF SCIENCETM
Citations
12
checked on Feb 10, 2021
Page view(s)
203
checked on Mar 27, 2024
Download(s) 50
184
checked on Mar 27, 2024