Seismic Evidence of an Extended Magmatic Sill under Mt. Vesuvius

Mt. Vesuvius is a small volcano associated with an elevated risk. Seismic data were used to better define its magmatic system. We found evidence of an extended (at least 400 square kilometers) low-velocity layer at about 8-kilometer depth. The inferred S-wave (∼0.6 to 1.0 kilometer per second) and P...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 2001-11, Vol.294 (5546), p.1510-1512
Hauptverfasser: Auger, Emmanuel, Gasparini, Paolo, Virieux, Jean, Zollo, Aldo
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container_issue 5546
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container_title Science (American Association for the Advancement of Science)
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creator Auger, Emmanuel
Gasparini, Paolo
Virieux, Jean
Zollo, Aldo
description Mt. Vesuvius is a small volcano associated with an elevated risk. Seismic data were used to better define its magmatic system. We found evidence of an extended (at least 400 square kilometers) low-velocity layer at about 8-kilometer depth. The inferred S-wave (∼0.6 to 1.0 kilometer per second) and P-wave velocities (∼2.0 kilometer per second) as well as other evidence indicate an extended sill with magma interspersed in a solid matrix.
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source American Association for the Advancement of Science; Jstor Complete Legacy
subjects Air guns
Continental crust
Crystalline rocks
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
Geophysics
Igneous and metamorphic rocks petrology, volcanic processes, magmas
Italy
Magma
Natural hazards: prediction, damages, etc
Rocks
Seismological research
Volcanoes
Volcanology
Wave velocity
title Seismic Evidence of an Extended Magmatic Sill under Mt. Vesuvius
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