Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/2884| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Costa, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
| dc.contributor.authorall | Melnik, O.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
| dc.contributor.authorall | Sparks, R. S. J.; Department of Earth Sciences, University of Bristol, Bristol, UK. | en |
| dc.contributor.authorall | Voight, B.; Geosciences, Penn State University, University Park, Pennsylvania | en |
| dc.date.accessioned | 2007-11-29T08:09:02Z | en |
| dc.date.available | 2007-11-29T08:09:02Z | en |
| dc.date.issued | 2007 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/2884 | en |
| dc.description.abstract | Lava dome eruptions are commonly characterized by large fluctuations in discharge rate with cyclic behaviour on time-scales ranging from hours to decades. Examples include Bezymianny volcano (Russia), Merapi (Java), Santiaguito (Guatemala), Mt St Helens (USA), Mt Unzen (Japan), and Soufrie`re Hills volcano (Montserrat). Previous models have assumed simple cylindrical conduits for magma transport, but extrusions are mainly fed by dykes, with cylindrical geometries developing only at shallow levels. The widths of dykes embedded in an elastic medium are influenced by local magma pressure, affecting flow rates and system dynamics strongly. We develop a model for magma flow in dykes, which predicts intense pulsations of magma extrusion for the case of a constant source pressure. The period time scale is determined by the elastic deformation of the dyke walls and the length-to-width ratio of the dyke. The dyke acts like a volumetric capacitor, storing magma as pressure increases and then releasing magma in a pulse of extrusion. For the Soufrie`re Hills volcano, cyclic extrusions with time-scales of a few weeks are predicted for dykes 300–500 m long and 3–6 m wide, matching observations. The model explains the sharp onset of tilt pulsations and seismic swarms. | en |
| dc.language.iso | English | en |
| dc.publisher.name | American Geophysical Union | en |
| dc.relation.ispartof | Geophisical Research Letters | en |
| dc.relation.ispartofseries | / 34 (2007) | en |
| dc.subject | Control | en |
| dc.subject | magma flow | en |
| dc.subject | dykes | en |
| dc.subject | cyclic lava | en |
| dc.title | Control of magma flow in dykes on cyclic lava dome extrusion | en |
| dc.type | article | en |
| dc.description.status | Published | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.description.pagenumber | L02303 | en |
| dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas | en |
| dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.04. Thermodynamics | en |
| dc.identifier.doi | 10.1029/2006GL0227466 | en |
| dc.relation.references | Barmin, A., O. Melnik, and R. S. J. Sparks (2002), Periodic behavior in lava dome eruptions, Earth Planet. Sci. Lett., 199, 173– 184. Beauducel, F., F. H. Cornet, E. Suhanto, T. Duquesnoy, and M. Kasser (2000), Constraints on magma flux from displacements data at Merapi volcano, Java, Indonesia, J. Geophys. Res., 105(B4), 8193– 8203. Belousov, A., B. Voight, M. Belousova, and A. Petukhin (2002), Pyroclastic surges and flows from the 8 – 10 May 1997 explosive eruption of Bezymianny volcano, Kamchatka, Russia, Bull. Volcanol., 64, 455–471. Costa, A. (2005), Viscosity of high crystal content melts: Dependence on solid fraction, Geophys. Res. Lett., 32, L22308, doi:10.1029/ 2005GL024303. Costa, A. (2006), Permeability-porosity relationship: A re-examination of the Kozeny-Carman equation based on fractal pore-space geometry, Geophys. Res. Lett., 33, L02318, doi:10.1029/2005GL025134. Denlinger, R., and R. P. Hoblitt (1999), Cyclic eruptive behavior of silicic volcanoes, Geology, 27, 459–462. Harris, A. J. L., W. I. Rose, and L. P. Flynn (2002), Temporal trends in lava dome extrusion at Santiaguito 1922– 2000, Bull. Volcanol., 65, 77– 89. Hess, K. U., and D. B. Dingwell (1996), Viscosities of hydrous leucogranite melts: A non-Arrhenian model, Am. Mineral., 81, 1297–1300. Lister, J. R., and R. C. Kerr (1991), Fluid mechanical models of crack propagation and their application to magma transport in dykes, J. Geophys. Res., 96, 10,049– 10,077. Llewellin, E. W., and M. Manga (2005), Bubble suspension rheology and implications for conduit flow, J. Volcanol. Geotherm. Res., 143, 205–217. Mattioli, G., T. H. Dixon, F. F. Farina, E. S. Howell, P. E. Jansma, and A. L. Smith (1998), GPS measurement of surface deformation around Soufriere Hills volcano, Montserrat from October 1995 to July 1996, Geophys. Res. Lett., 25, 3417–3420. Melnik, O., and R. S. J. Sparks (1999), Nonlinear dynamics of lava dome extrusion, Nature, 402, 37– 41. Melnik, O., and R. S. J. Sparks (2005), Controls on conduit magma flow dynamics during lava dome building eruptions, J. Geophys. Res., 110, B02209, doi:10.1029/2004JB003183. Me´riaux, C., and C. Jaupart (1995), Simple fluid dynamics models of volcanic rift zones, Earth Planet. Sci. Lett., 136, 223– 240. Nakada, S., and J. C. Eichelberger (2004), Looking into a volcano: Drilling Unzen, Geotimes, 49(3), 14– 17. Nakada, S., H. Shimizu, and K. Ohta (1999), Overview of the 1990– 1995 eruption at Unzen Volcano, J. Volcanol. Geotherm. Res., 89, 1– 22. Ozerov, A., I. Ispalatov, and J. Lees (2003), Modeling Strombolian eruptions of Karymsky volcano, Kamchatka, Russia, J. Volcanol. Geotherm. Res., 122, 265– 280. Roman, D. C., J. Neuberg, and R. R. Luckett (2006), Assessing the likelihood of volcanic eruption through analysis of volcanotectonic earthquake fault-plane solutions, Earth Planet. Sci. Lett., 248, 244 – 252, doi:10.1016/j.epsl.2006.05.029. Sparks, R. S. J., and S. R. Young (2002), The eruption of Soufrie`re Hills volcano, Montserrat (1995– 1999): Overview of scientific results, Mem. Geol. Soc., 21, 45– 69. Sparks, R. S. J., et al. (1998), Magma production and growth of the lava dome of the Soufrie`re Hills volcano, Montserrat: November 1995 to December 1997, Geophys. Res. Lett., 25, 3421– 3424. Swanson, D. A., and R. T. Holcomb (1990), Regularities in growth of the Mount St. Helens dacite dome 1980– 1986, in Lava Flows and Domes: Emplacement Mechanisms and Hazards Implications, edited by J. H. Fink, pp. 3– 24, Springer, New York. Troise, C., F. Pingue, and G. De Natale (2003), Coulomb stress changes at calderas: Modeling the seismicity at Campi Flegrei (southern Italy), J. Geophys. Res., 108(B6), 2292, doi:10.1029/2002JB002006. Voight, B., et al. (1999), Magma flow instability and cyclic activity at Soufrie`re Hills Volcano, Montserrat, Science, 283, 1138– 1142. Voight, B., E. K. Constantine, S. Siswowidjoyo, and R. Torley (2000), Historical eruptions of Merapi Volcano, central Java, Indonesia, 1768– 1998, J. Volcanol. Geotherm. Res., 100, 69– 138. Voight, B., et al. (2006), Unprecedented pressure increase in deep magma reservoir triggered by lava-dome collapse, Geophys. Res. Lett., 33, L03312, doi:10.1029/2005GL024870. Wadge, G., G. S. Mattioli, and R. A. Herd (2006), Ground deformation at Soufrie`re Hills volcano, Montserrat during 1998–2000 measured by radar interferometry and GPS, J. Volcanol. Geotherm. Res., 152, 157– 173. Wylie, J. J., B. Voight, and J. A. Whitehead (1999), Instability of magma flow from volatile-dependent viscosity, Science, 285, 1883– 1885. Yamashina, K., and H. Shimuzu (1999), Crustal deformation in the mid- May 1991 crisis preceding the extrusion of a dacite lava dome at Unzen volcano, Japan, J. Volcanol. Geotherm. Res., 89, 43–55. | en |
| dc.description.obiettivoSpecifico | 3.6. Fisica del vulcanismo | en |
| dc.description.journalType | JCR Journal | en |
| dc.description.fulltext | reserved | en |
| dc.contributor.author | Costa, A. | en |
| dc.contributor.author | Melnik, O. | en |
| dc.contributor.author | Sparks, R. S. J. | en |
| dc.contributor.author | Voight, B. | 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 | Department of Earth Sciences, University of Bristol, Bristol, UK. | en |
| dc.contributor.department | Geosciences, Penn State University, University Park, Pennsylvania | 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 Bologna, Bologna, Italia | - |
| crisitem.author.dept | Inst. Mechanics, Moscow State University, Moskow, Russia | - |
| crisitem.author.dept | Department of Earth Sciences, University of Bristol, Bristol, UK. | - |
| crisitem.author.dept | Department of Geosciences, Penn State University, University Park, Pennsylvania, USA | - |
| crisitem.author.orcid | 0000-0002-4987-6471 | - |
| 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 | - |
| Appears in Collections: | Article published / in press | |
Files in This Item:
| File | Description | Size | Format | Existing users please Login |
|---|---|---|---|---|
| CosMel_2007.pdf | 198.08 kB | Adobe PDF |
Page view(s) 20
284
checked on Apr 17, 2024
Download(s)
27
checked on Apr 17, 2024
