Publication Date:
2017-04-04
Description:
Plate tectonic history, geological, geochemical (element and isotope ratios), and
seismological (P-wave tomography and SKS splitting) data are combined with laboratory
modeling to present a three-dimensional reconstruction of the subduction history
of the central Mediterranean subduction. We fi nd that the dynamic evolution
of the Calabrian slab is characterized by a strong episodicity revealed also by the
discrete opening of the Tyrrhenian Sea. The Calabrian slab has been progressively
disrupted by means of mechanical and thermal erosion leading to the formation of
large windows, both in the southern Tyrrhenian Sea and in the southern Apennines.
Windows at lateral slab edges have caused a dramatic reorganization of mantle convection,
permitting infl ow of subslab mantle material and causing a complicated pattern
of magmatism in the Tyrrhenian region, with coexisting K- and Na-alkaline igneous
rocks. Rapid, intermittent avalanches of large amounts of lithospheric material at
slab edges progressively reduced the lateral length of the Calabrian slab to a narrow
(200 km) slab plunging down into the mantle and enhancing the end of the subduction
process.
Description:
Published
Description:
153-169
Description:
2.3. TTC - Laboratori di chimica e fisica delle rocce
Description:
N/A or not JCR
Description:
open
Keywords:
subduction
;
Mediterranean
;
laboratory experiments
;
seismic tomography
;
04. Solid Earth::04.07. Tectonophysics::04.07.06. Subduction related processes
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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