1887

Abstract

Summary

The inversion of surface-wave dispersion curves is a reliable method to derive near-surface shear-wave velocity profiles. In this contribution, we invert 2D seismic-reflection data acquired as part of a paleoenvironmental study of the Llancanelo Lake basin (southern Mendoza Province, Argentina), that cannot be used to image the first 50 m with reflection processing due to its characteristics. Though exhibiting severe spatial aliasing, the Rayleigh dispersion curves were successfully sampled and then inverted to obtain 2D shallow shear-wave velocity profiles. The results are compatible with the already known stratigraphy of the near-surface in the region, and provide more details on the uppermost layers, particularly some differences in the seismic response of different sedimentary deposits.

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/content/papers/10.3997/2214-4609.201802642
2018-09-09
2020-04-03
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References

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