Publication Date:
2019
Description:
〈span〉〈div〉Summary〈/div〉We applied a non-linear teleseismic tomography algorithm to explore the 3D structure of the upper mantle beneath the Arabia-Eurasia continental collision zone in western Iran. An unprecedented dataset consisting of 32738 teleseismic 〈span〉P〈/span〉-wave relative arrival time residuals from 129 permanent and temporary seismic stations was inverted for seismic imaging. The seismic images suggest a thick high-velocity lithospheric mantle beneath the Zagros. Other high-velocity domain observed below ∼300 km depth, which is not connected to the Zagros lithosphere, is interpreted as a slab segment in the upper mantle beneath the collision zone. The low-velocity anomalies beneath Central Iran and Alborz, consistent with a weak upper mantle, may be a result of upwelling asthenosphere and partial melting of the subducted lithosphere.〈/span〉
Print ISSN:
2051-1965
Electronic ISSN:
1365-246X
Topics:
Geosciences
Published by
Oxford University Press
on behalf of
The Deutsche Geophysikalische Gesellschaft (DGG) and the Royal Astronomical Society (RAS).
