Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3723
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Burton, M. R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Mader, H. M.; University of Bristol | en |
dc.contributor.authorall | Polacci, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.date.accessioned | 2008-04-02T10:21:58Z | en |
dc.date.available | 2008-04-02T10:21:58Z | en |
dc.date.issued | 2007-09-08 | en |
dc.identifier.uri | http://hdl.handle.net/2122/3723 | en |
dc.description.abstract | Using constraints from literature data on the petrology and texture of erupted material from Stromboli and geochemical measurements of gas emissions together with a model of gas solubility we construct a conceptual model of quiescent degassing for this volcano. We find that within a pressure range between 100 MPa and 50 MPa (∼3.6 km and ∼1.8 km depth respectively) vesiculating magma ascending within the conduit becomes permeable to gas flow and a transition from closed- to open-system degassing takes place. Above the transition, gas, rich in the most insoluble gases, flows up through degassing magma, and thereby becomes enriched in more soluble gases during ascent to the surface. The final gas emission is therefore a superposition of gases released from magma above the percolation transition and gas that has evolved in closed-system below the transition. Steady-state gas release from Stromboli can only be sustained via magma circulation, driven by the density variation between ascending vesiculating magma and descending degassed magma. By balancing the buoyant force of ascending vesiculating magma against the viscous resistance produced by travelling through descending, degassed magma in a simple flow model we determine that a cylindrical conduit diameter of 2.5–2.9 m produces the magma mass flow rate of 575 kg s−1, required to account for the observed quiescent SO2 gas flux on Stromboli of ∼2.3 kg s−1 (200 td−1). | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier | en |
dc.relation.ispartof | Earth and Planetary Research Letters | en |
dc.relation.ispartofseries | /264 (2007) | en |
dc.subject | Stromboli | en |
dc.subject | gas | en |
dc.title | The role of gas percolation in quiescent degassing of persistetly active basaltic volcanoes | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 46–60 | en |
dc.identifier.URL | http://www.sciencedirect.com/science/journal/0012821X | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.01. Gases | en |
dc.identifier.doi | 10.1016/j.epsl.2007.08.028 | en |
dc.description.obiettivoSpecifico | 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Burton, M. R. | en |
dc.contributor.author | Mader, H. M. | en |
dc.contributor.author | Polacci, M. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | University of Bristol | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | 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 | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | University of Bristol | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.orcid | 0000-0001-6588-7560 | - |
crisitem.author.orcid | 0000-0003-3318-8700 | - |
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 | Existing users please Login |
---|---|---|---|---|
Burtonetal07_EPSL.pdf | 716.28 kB | Adobe PDF |
WEB OF SCIENCETM
Citations
119
checked on Feb 10, 2021
Page view(s)
93
checked on Apr 24, 2024
Download(s)
21
checked on Apr 24, 2024