Upper-mantle velocity structure beneath the Zagros collision zone, Central Iran and Alborz from nonlinear teleseismic tomography

2019 ◽  
Vol 218 (1) ◽  
pp. 414-428 ◽  
Author(s):  
Meysam Mahmoodabadi ◽  
Farzam Yaminifard ◽  
Mohammad Tatar ◽  
Ayoub Kaviani ◽  
Khalil Motaghi
Keyword(s):  
Upper Mantle ◽  
Velocity Structure ◽  
Central Iran ◽  
Teleseismic Tomography ◽  
Collision Zone ◽  
Mantle Velocity

Deep velocity image of the north Zagros collision zone (Iran) from regional and teleseismic tomography

2019 ◽  
Vol 219 (3) ◽  
pp. 1729-1740 ◽  
Author(s):  
M Rahmani ◽  
K Motaghi ◽  
A Ghods ◽  
F Sobouti ◽  
M Talebian ◽  
...  
Keyword(s):  
Upper Mantle ◽  
High Velocity ◽  
Velocity Structure ◽  
Central Iran ◽  
P Wave ◽  
Arabian Plate ◽  
Zagros Mountains ◽  
Teleseismic Tomography ◽  
The North ◽  
Collision Zone

SUMMARY We inverted 3555 regional and teleseismic P-wave relative time residuals to resolve deep velocity structure beneath the NW part of the Zagros collision zone. The data were gathered by 46 seismic stations installed along a ∼520-km-long seismic profile crossing the Zagros Mountains, Central Iran and the western Alborz Mountains. The obtained tomogram reveals a high velocity lithospheric root beneath the Zagros Mountains and a low velocity wedge in the frontal edge of the Arabian Plate beneath the suture that might be interpreted as beginning of delamination of lower part of the Arabian mantle lithosphere from its upper part. A significant deep (depth >350 km) high velocity feature is observed in the lower part of the upper mantle to the north of the Zagros suture and beneath Central Iran. We interpret this feature as the remains of oceanic slab of the Neotethys lying in the lower portion of the upper mantle and the transition zone.

Upper-mantle S-velocity structure across the Zagros collision zone resolved by nonlinear teleseismic tomography

2011 ◽  
Vol 15 (2) ◽  
pp. 329-339 ◽  
Author(s):  
Forough Keshvari ◽  
Z. Hossein Shomali ◽  
Mohammad Tatar ◽  
Ayoub Kaviani
Keyword(s):  
Upper Mantle ◽  
Velocity Structure ◽  
Teleseismic Tomography ◽  
Collision Zone
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