Understanding Crust Dynamics and Subduction in Southern Italy
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منابع مشابه
Data for Seismic properties of the Nazca oceanic crust in southern Peruvian subduction system
This supplementary file describes (1) data processing for teleseismic receiver function (RF), (2) RF amplitude inversion, and (3) calculation of velocities of candidate phases from experimental mineral physics data. 1. Data processing for teleseismic receiver function Identification of strong and sharp amplitudes of the P-to-S converted phase (hereafter, Ps) is crucial in this analysis. We try ...
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a r t i c l e i n f o a b s t r a c t The horizontal Nazca slab, extending over a distance of ∼800 km along the trench is one of enigmatic features in Peruvian subduction zone. Increased buoyancy of the oceanic lithosphere alone due to the subduction of Nazca Ridge is insufficient to fully explain such a lengthy segment. We use data from the recent seismic experiment in southern Peru to find th...
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3.18.3 CHARACTERISTICS OF ARC MAGMAS 7 3.18.3.1 Comparison with MORBs 7 3.18.3.1.1 Major elements 7 3.18.3.1.2 We are cautious about fractionation correction of major elements 9 3.18.3.1.3 Distinctive, primitive andesites 11 3.18.3.1.4 Major elements in calc-alkaline batholiths 11 3.18.3.2 Major and Trace-Element Characteristics of Primitive Arc Magmas 18 3.18.3.2.1 Primitive basalts predominat...
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Using an inversion strategy based on adjoint methods, we developed a three-dimensional seismological model of the southern California crust. The resulting model involved 16 tomographic iterations, which required 6800 wavefield simulations and a total of 0.8 million central processing unit hours. The new crustal model reveals strong heterogeneity, including local changes of +/-30% with respect t...
متن کاملCrustal structure and deformation across a mature slab tear zone: the case of southern Tyrrhenian Subduction (Italy)
We compute S-velocity profiles of the crust across the Messina strait (Italy), the tear zone at the southern end of the Ionian subduction zone. Separating Sicily from Calabria, the Messina Strait hosted some of the strongest earthquakes to ever occur in Italy. Here, the motion of the Ionian slab with respect to Sicily creates a complex tectonic setting characterized by lithospheric tearing. We ...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 2008
ISSN: 0096-3941
DOI: 10.1029/2008eo250002