scholarly journals Quantification of nonlocal dispersion cancellation for finite frequency entanglement

2020 ◽  
Vol 28 (12) ◽  
pp. 17697
Author(s):  
Xiao Xiang ◽  
Ruifang Dong ◽  
Baihong Li ◽  
Feiyan Hou ◽  
Runai Quan ◽  
...  
Keyword(s):  
Finite Frequency ◽  
Nonlocal Dispersion

scholarly journals The Hindu Kush slab break-off as revealed by deep structure and crustal deformation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sofia-Katerina Kufner ◽  
Najibullah Kakar ◽  
Maximiliano Bezada ◽  
Wasja Bloch ◽  
Sabrina Metzger ◽  
...  
Keyword(s):  
Real Time ◽  
Penetration Depth ◽  
Continental Crust ◽  
Crustal Deformation ◽  
Deep Structure ◽  
Continental Collision ◽  
Variable Degree ◽  
Finite Frequency ◽  
Hindu Kush ◽  
Short Times

AbstractBreak-off of part of the down-going plate during continental collision occurs due to tensile stresses built-up between the deep and shallow slab, for which buoyancy is increased because of continental-crust subduction. Break-off governs the subsequent orogenic evolution but real-time observations are rare as it happens over geologically short times. Here we present a finite-frequency tomography, based on jointly inverted local and remote earthquakes, for the Hindu Kush in Afghanistan, where slab break-off is ongoing. We interpret our results as crustal subduction on top of a northwards-subducting Indian lithospheric slab, whose penetration depth increases along-strike while thinning and steepening. This implies that break-off is propagating laterally and that the highest lithospheric stretching rates occur during the final pinching-off. In the Hindu Kush crust, earthquakes and geodetic data show a transition from focused to distributed deformation, which we relate to a variable degree of crust-mantle coupling presumably associated with break-off at depth.

scholarly journals Asymmetry of the excess finite-frequency noise

2009 ◽  
Author(s):  
I. Safi ◽  
Massimo Macucci ◽  
Giovanni Basso
Keyword(s):  
Frequency Noise ◽  
Finite Frequency
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