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Local earthquake tomography of the Larderello-Travale geothermal field
Author(s)
Language
English
Obiettivo Specifico
1T. Struttura della Terra
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/83 (2020)
ISSN
0375-6505
Publisher
Elsevier
Pages (printed)
101731
Issued date
2020
Subjects
04.01
Abstract
The Larderello-Travale Geothermal Field in South-West Tuscany (Italy) is the oldest and among the most pro-
ductive geothermal fields in the world. A new 3D model of seismic P-wave velocity (V P ) of the upper crust
beneath the geothermal field is derived by inverting a set of highly consistent travel-times from local-earth-
quakes. Results document a marked correlation of V P with previously described, high-reflectivity horizons. We
also determined a low velocity body (V P ∼5 km s −1 ) culminating at depths of about 7 km, with estimated vo-
lume of 35–40 km 3 . Such low velocities are consistent with a granite at temperatures above 700 °C, thus in a
partially-molten status.
ductive geothermal fields in the world. A new 3D model of seismic P-wave velocity (V P ) of the upper crust
beneath the geothermal field is derived by inverting a set of highly consistent travel-times from local-earth-
quakes. Results document a marked correlation of V P with previously described, high-reflectivity horizons. We
also determined a low velocity body (V P ∼5 km s −1 ) culminating at depths of about 7 km, with estimated vo-
lume of 35–40 km 3 . Such low velocities are consistent with a granite at temperatures above 700 °C, thus in a
partially-molten status.
Type
article
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Bagagli_Geothermics2020.pdf
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