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  • Volcanology: Eruption mechanisms and flow emplacement  (3)
  • 04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomalies
  • Industrial Chemistry
  • Inorganic Chemistry
  • Seismology
  • AGU  (4)
  • Noordhoff
  • 2005-2009  (4)
  • 1975-1979
  • 1950-1954
  • 2005  (4)
Collection
Keywords
Publisher
Years
  • 2005-2009  (4)
  • 1975-1979
  • 1950-1954
Year
  • 1
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    Dynamics of 2004–2005 Mt. Etna effusive eruption as inferred from petrologic monitoring (2005)
    AGU
    Details
    Publication Date: 2017-04-04
    Description: From early September to early November, during the 2004–2005 Mt. Etna effusive eruption, petrologic monitoring was enabled by near-vent sampling of erupting lava and onsite SEM-EDS capabilities at INGV-CT. Significant differences in composition and temperature of lava erupted from 2920–2620 m and 2820–2320 m vents, attest to variably evolved shallow magmatic conditions within a geometrically complex storage volume. The petrography and glass compositions of water-quenched samples indicate that the magma feeding the 2004–2005 activity was likely to have been stored in the shallow plumbing system during the 2000 and 2001 activity, where it experienced volatile loss and extensive crystallization. Both geophysical and petrologic data suggest that this eruption was not triggered by the intrusion of a new dike from depth, but it was more likely that existing shallow magma reservoirs were passively mobilized and erupted in response to edifice deformation.
    Description: Published
    Description: 1-5
    Description: partially_open
    Keywords: Mineralogy and Petrology: Petrography, microstructures, and textures ; Mineralogy and Petrology: Igneous petrology ; Volcanology: Eruption mechanisms and flow emplacement ; Volcanology: Volcano monitoring ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
    Format: 490 bytes
    Format: 155221 bytes
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  • 2
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    Shallow intrusive processes during 2002–2004 and current volcanic activity on Mt. Etna (2005)
    AGU
    Details
    Publication Date: 2017-04-04
    Description: The understanding of shallow intrusive processes during 2002–2004, as well as the causes of the volcano-tectonic seismicity, has been improved at Mt. Etna by comparing the inversion results from GPS data with accurate 3D hypocentral locations. Our findings indicate that short periods of deflation (about six months) were followed by recharging phases after the end of both the 2001 and 2002–2003 flank eruptions. During the last recharging phase (June 2003–August 2004), modeling results and seismic observations suggest a composite mechanism of re-injection of magma into the rift-zones (S and NE), similar to that leading to the 2002–2003 flank eruption, which could have triggered the summit eruption started on September 7, 2004.
    Description: Published
    Description: 1-4
    Description: partially_open
    Keywords: Volcanology: Magma migration and fragmentation ; Seismology: Earthquake interaction, forecasting, and prediction ; Seismology: Seismicity and tectonics ; Volcanology: Volcano monitoring ; Volcanology: Eruption mechanisms and flow emplacement ; 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
    Format: 490 bytes
    Format: 868891 bytes
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  • 3
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    Etna 2004–2005: An archetype for geodynamically-controlled effusive eruptions (2005)
    AGU
    Details
    Publication Date: 2017-04-04
    Description: The 2004–05 eruption of Etna was characterised by outpouring of degassed lava from two vents within Valle del Bove. After three months of eruption lava volumes were estimated to be between 18.5 and 32 × 106 m3, with eruption rate between 2.3 and 4.1 m3/s. Petrological analyses show that magma is resident in the shallow plumbing system, emplaced during the last South-East Crater activity. SO2 flux data show no increase at the onset of the eruption and SO2/HCl ratios in gas emitted from the eruptive fissure are consistent with a degassed magma. No seismic activity was recorded prior to eruption, unlike eruptions observed since the 1980's. The purely effusive nature of this eruption, fed by a degassed, resident magma and the fracture dynamics suggest that magmatic overpressure played a limited role in this eruption. Rather, lateral spreading of Etna's eastern flank combined with general inflation of the edifice triggered a geodynamically-controlled eruption.
    Description: Published
    Description: 1-4
    Description: partially_open
    Keywords: Volcanology: Effusive volcanism ; Volcanology: Volcano monitoring ; Volcanology: Eruption mechanisms and flow emplacement ; Volcanology: General or miscellaneous ; Tectonophysics: Tectonics and magmatism ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
    Format: 490 bytes
    Format: 626609 bytes
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  • 4
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    Seismic Earth: Array Analysis of Broadband Seismograms (2005)
    AGU
    In:  Washington, D.C., 280 pages, AGU, vol. 81A and 81B, no. 22, pp. 65-70, (ISBN 0-87590-422-X)
    Details
    Publication Date: 2005
    Keywords: Seismology ; Seismic arrays ; Data analysis / ~ processing ; Ray seismics ; Synthetic seismograms ; Modelling ; Wave propagation ; Waves ; Earth model, also for more shallow analyses ! ; Physical properties of rocks ; Broad-band
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    BIBLIOGRAPHY SEISMOLOGY
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