Abrupt change in mantle fabric across northern Apennines detected using seismic anisotropy
نویسندگان
چکیده
منابع مشابه
Isotropic and anisotropic seismic structures across Northern Apennines (Italy)
7 Isotropic and anisotropic seismic structures across Northern Apennines (Italy) 8 subduction zone are imaged using a new method for the analysis of teleseismc 9 receiver functions (RFs). More than 13,000 P-wave coda of teleseismic records 10 from the 2003-2007 RETREAT experiment are able to reveal new insights 11 into a peculiar subduction zone which develops at the convergent margin of 12 two...
متن کاملMapping seismic anisotropy using harmonic decomposition of receiver functions: An application to Northern Apennines, Italy
[1] Isotropic and anisotropic seismic structures across the Northern Apennines (Italy) subduction zone are imaged using a new method for the analysis of teleseismic receiver functions (RFs). More than 13,000 P‐wave coda of teleseismic records from the 2003–2007 Retreating‐Trench, Extension, and Accretion Tectonics (RETREAT) experiment are used to provide new insights into a peculiar subduction ...
متن کاملComparing crustal and mantle fabric from the North American craton using magnetics and seismic anisotropy
Article history: A central target in Earth s Received 22 July 2008 Received in revised form 27 October 2008 Accepted 29 October 2008 Available online 6 December 2008 Editor: R.D. van der Hilst
متن کاملMantle dynamics and seismic anisotropy
a r t i c l e i n f o Keywords: seismic anisotropy mantle flow geodynamic modeling shear wave splitting surface wave analysis mantle convection Observations of seismic anisotropy yield some of the most direct constraints available on both past and present-day deformation in the Earth's mantle. Insight into the character of mantle flow can also be gained from the geodynamical modeling of mantle ...
متن کاملSeismic anisotropy, mantle fabric, and the magmatic evolution of Precambrian southern Africa
The observed seismic anisotropy of the southern African mantle from both shear-wave splitting and surface wave observations provides important constraints on modes of mantle deformation beneath this ancient continent. We find that the mantle anisotropy beneath southern Africa is dominated by deformational events in Archean times occurring within the lithosphere, rather than present-day processe...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2007
ISSN: 0094-8276
DOI: 10.1029/2007gl029302