Crustal thickness and mantle wedge structure from receiver functions in the Chilean Maule region at 35°S

2013 ◽  
Vol 592 ◽  
pp. 159-164 ◽  
Author(s):  
Anke Dannowski ◽  
Ingo Grevemeyer ◽  
Helene Kraft ◽  
Ivonne Arroyo ◽  
Martin Thorwart
Keyword(s):  
Mantle Wedge ◽  
Crustal Thickness ◽  
Receiver Functions ◽  
Wedge Structure

Simultaneous inversion for crustal thickness and anisotropy by multiphase splitting analysis of receiver functions

2020 ◽  
Vol 223 (3) ◽  
pp. 2009-2026
Author(s):  
Frederik Link ◽  
Georg Rümpker ◽  
Ayoub Kaviani
Keyword(s):  
Statistical Tests ◽  
Real Data ◽  
Crustal Thickness ◽  
Receiver Functions ◽  
S Wave ◽  
Arrival Times ◽  
Simultaneous Inversion ◽  
Correction Scheme ◽  
Converted Phases ◽  
Two Phases

SUMMARY We present a technique to derive robust estimates for the crustal thickness and elastic properties, including anisotropy, from shear wave splitting of converted phases in receiver functions. We combine stacking procedures with a correction scheme for the splitting effect of the crustal converted Ps-phase and its first reverberation, the PpPs-phase, where we also allow for a predefined dipping Moho. The incorporation of two phases stabilizes the analysis procedure and allows to simultaneously solve for the crustal thickness, the ratio of average P- to S-wave velocities, the percentage of anisotropy and the fast-axis direction. The stacking is based on arrival times and polarizations computed using a ray-based algorithm. Synthetic tests show the robustness of the technique and its applicability to tectonic settings where dip of the Moho is significant. These tests also demonstrate that the effects of a dipping layer boundary may overprint a possible anisotropic signature. To constrain the uncertainty of our results we perform statistical tests based on a bootstrapping approach. We distinguish between different model classes by comparing the coherency of the stacked amplitudes after moveout correction. We apply the new technique to real-data examples from different tectonic regimes and show that coherency of the stacked receiver functions can be improved, when anisotropy and a dipping Moho are included in the analysis. The examples underline the advantages of statistical analyses when dealing with stacking procedures and potentially ambiguous solutions.

Determination of crustal thickness and velocities by using receiver functions andPmPtravel times

2018 ◽  
Vol 216 (2) ◽  
pp. 1304-1312 ◽  
Author(s):  
Song Luo ◽  
Lupei Zhu ◽  
Rong Huang ◽  
Yinhe Luo ◽  
Xiaohuan Jiang ◽  
...  
Keyword(s):  
Crustal Thickness ◽  
Receiver Functions

Crustal Thickness Estimatives and Vp/Vs Ratio Using Receiver Functions

2011 ◽  
Author(s):  
Diogo Farrapo Albuquerque ◽  
César Garcia Pavão ◽  
Rafael Toscani Gomes da Silveira ◽  
Iago Guilherme dos Santos ◽  
George Sand França
Keyword(s):  
Crustal Thickness ◽  
Receiver Functions
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