Enhancing Crustal Velocity Structure in Sedimentary Basin by joint inversion of Teleseismic P-Wave Reverberations and Surface Wave Dispersion

TL;DR

This paper introduces a joint inversion method combining teleseismic P-wave reverberations and surface wave dispersion to improve crustal velocity imaging in sedimentary basins, validated through simulations and real data.

Contribution

It presents a novel inversion strategy that integrates TPR and SWD data, enhancing crustal structure resolution in complex sedimentary environments.

Findings

Improved crustal velocity models in sedimentary basins.

Validated approach with real and simulated data.

Potential for better seismic hazard assessment.

Abstract

Accurately determining the crustal velocity structure within sedimentary basins is crucial for enhancing energy resource evaluation and seismic hazard assessment. Traditional crustal imaging is challenging due to the interference of teleseismic P-wave reverberations (TPR). To address this issue, we propose an inversion strategy that combines multi-frequency TPR and surface wave dispersion (SWD) to constrain the crustal structure. Both theoretical simulations and real data tests from two stations in the Songliao Basin validate our approach. This method shows great promise for improving crustal structure investigations in complex environments, such as sedimentary basins and oceanic regions.