Publication Date:
2017-04-04
Description:
In the south-eastern corner of the Tyrrhenian basin, in the central Mediterranean Sea, a tight alignment of earthquakes along a
well-defined Benioff zone marks one of the narrowest active trenches worldwide, where one of the last fragment of the former
Tethys ocean is consumed. Seismic tomography furnishes snapshot images of the present-day position of this slab, and seismic
anisotropy allows to reconstruct the past kinematics of the subduction process. Using seismic anisotropy fast directions as a proxy
for the present and past mantle flow, we look backward for the seismic traces of the slab motion through the western-central
Mediterranean mantle, from the starting locus of subduction toward its present day position. The result of combining independent
data sets provides a coherent pattern of anisotropy that illustrates an example of slab rollback from its initiation point to its presentday
position.
Description:
Published
Description:
517-529
Description:
JCR Journal
Description:
reserved
Keywords:
Mediterranean
;
Seismic
;
02. Cryosphere::02.02. Glaciers::02.02.03. Geomorphology
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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