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Surface-wave Profiling for Sinkhole Hazard Assessment Along the Eastern Dead Sea Shoreline, Ghor Al–Haditha, JordanNormal access

Authors: L. Bodet, P. Y. Galibert, A. Dhemaied, C. Camerlynck and A. Al-Zoubi
Event name: 72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010
Session: Geophysics for Geohazards / Mining and Geothermal (EAGE)
Publication date: 14 June 2010
DOI: 10.3997/2214-4609.201401006
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 1.11Mb )
Price: € 20

Summary:
The surface-wave profiling method has been carried out for the estimation of subsurface shear-wave velocities at the Ghor Al-Haditha sinkholes area, in Jordan. Roll along acquisition and dispersion stacking were used to achieve multi-modal dispersion measurements along two profiles. The estimated dispersion showed strong lateral variations, apparently correlated with sinkholes. Preliminary blind inversion results confirmed these correlations: low shear-wave velocity anomalies were noticed in the vicinity of existing sinkholes and in the currently most active collapsing zone. Such anomalies could be explained by a systematic decompaction of shallow sediment layers, associated to the sinkhole development process.


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