Journal articles
Pre-existing caverns in salt formations could be the major cause of sinkhole hazards along the coast of the Dead Sea
Abstract : Since 1990 hundreds of sinkholes have appeared along the coast of the Dead Sea. In the literature the rapid development of sinkholes is explained as a result of a drop in the level of the Dead Sea. This model assumes very fast dissolution of large volumes of salt and the creation of new caverns that cause sinkholes in 10 to 20 years. However, the results of our geophysical study do not confirm the fast dissolution assumption. To explain the available field observations, we propose the following model: (1) slow dissolution of salt (much longer than 20 years) with the creation of caverns without development of sinkholes; (2) sinkhole development is triggered by the lowering of the groundwater level because the rocks overlying the salt formation become unsaturated; (3) the time of sinkhole appearance is controlled by the mechanical properties of the rocks that overlie pre-existing caverns.
https://hal-insu.archives-ouvertes.fr/insu-00388752
Contributor : Thierry Pellarin Connect in order to contact the contributor
Submitted on : Friday, March 5, 2021 - 7:29:08 AM
Last modification on : Sunday, October 17, 2021 - 3:16:49 AM
Long-term archiving on: : Sunday, June 6, 2021 - 6:09:11 PM
Contributor : Thierry Pellarin Connect in order to contact the contributor
Submitted on : Friday, March 5, 2021 - 7:29:08 AM
Last modification on : Sunday, October 17, 2021 - 3:16:49 AM
Long-term archiving on: : Sunday, June 6, 2021 - 6:09:11 PM
File
2008GL035510.pdf
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