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Three-dimensional seismic velocity tomography of Montserrat from the SEA-CALIPSO offshore/onshore experiment

dc.contributor.author Shalev, E
dc.contributor.author Kenedi, CL
dc.contributor.author Malin, P
dc.contributor.author Voight, V
dc.contributor.author Miller, V
dc.contributor.author Hidayat, D
dc.contributor.author Sparks, RSJ
dc.contributor.author Minshull, T
dc.contributor.author Paulatto, M
dc.contributor.author Brown, L
dc.contributor.author Mattioli, G
dc.date.accessioned 2011-06-21T17:27:01Z
dc.date.available 2011-06-21T17:27:01Z
dc.date.issued 2010
dc.identifier.citation Shalev,E.;Kenedi,C. L.;Malin,P.;Voight,V.;Miller,V.;Hidayat,D.;Sparks,R. S. J.;Minshull,T.;Paulatto,M.;Brown,L.;Mattioli,G.. 2010. Three-dimensional seismic velocity tomography of Montserrat from the SEA-CALIPSO offshore/onshore experiment. Geophysical Research Letters 37( ): L00E17-L00E17.
dc.identifier.issn 0094-8276
dc.identifier.uri https://hdl.handle.net/10161/4094
dc.description.abstract The SEA-CALIPSO experiment in December 2007 incorporated a sea-based airgun source, and seismic recorders both on Montserrat and on the adjacent sea floor. A high quality subset of the data was used for a first arrival P-wave velocity tomographic study. A total of more than 115,000 traveltime data from 4413 airgun shots, and 58 recording stations, were used in this high resolution tomographic inversion. The experiment geometry limited the depth of well resolved structures to about 5 km. The most striking features of the tomography are three relatively high velocity zones below each of the main volcanic centers on Montserrat, and three low velocity zones flanking Centre Hills. We suggest that the high velocity zones represent the solid andesitic cores of the volcano complexes, characterized by wave speeds faster than adjacent volcaniclastic material. The low velocity zones may reflect porous volcaniclastic material and/or alteration by formerly active hydrothermal systems. Citation: Shalev, E., et al. (2010), Three-dimensional seismic velocity tomography of Montserrat from the SEA-CALIPSO offshore/onshore experiment, Geophys. Res. Lett., 37, L00E17, doi: 10.1029/2010GL042498.
dc.language.iso en_US
dc.publisher American Geophysical Union (AGU)
dc.relation.isversionof 10.1029/2010GL042498
dc.subject soufriere hills volcano
dc.subject deformation
dc.subject eruption
dc.subject geosciences, multidisciplinary
dc.title Three-dimensional seismic velocity tomography of Montserrat from the SEA-CALIPSO offshore/onshore experiment
dc.title.alternative
dc.type Other article
dc.description.version Version of Record
duke.date.pubdate 2010-5-1
duke.description.issue
duke.description.volume 37
dc.relation.journal Geophysical Research Letters
pubs.begin-page L00E17


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