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Les Avellanes Diapir, South-Central Pyrenees: Reconstructing the Kinematics of a Salt Diapir Inside a Fold-and-Thrust Belt: Preliminary Results

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Recent Research on Sedimentology, Stratigraphy, Paleontology, Geochemistry, Volcanology, Tectonics, and Petroleum Geology (MedGU 2022)

Abstract

In salt-detached fold-and-thrust belts, salt can be accumulated along the front where can extrude locally. The nature and timing of salt accumulations were studied at the South-Central Pyrenees, along Les Avellanes diapir surroundings. Field data collected is used for mapping and the construction of a cross section covering the outer part of the fold-and-thrust belt, restituted until the base of the Eocene. The primary welding of the synclines during the Eocene obstructed lateral flow which created an underground accumulation. The collapse of the crest atop facilitated the extrusion of the diapir.

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References

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Acknowledgements

Work supported by Institut de Recerca Geomodels (project CGL2017- 85532-P (AEI/FEDER)), Grups Consolidats de Recerca “Geologia Sedimentària” (2017SGR-824) and “Geodinàmica i Anàlisi de Conques (2017SGR-596), DGICYT PID2021-122467NB-C22, PGC2018-093903-B-C22 (MCIU/FEDER, UE), SABREM PID2020-117598GB-I00 MCIN/AEI/https://doi.org/10.13039/501100011033, and the scholarship PREDOC-UB1 5660400. Petex and Emerson are also acknowledged for providing academic licenses for Move and Gocad, respectively.

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Correspondence to Gabriel Cofrade .

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Cofrade, G. et al. (2024). Les Avellanes Diapir, South-Central Pyrenees: Reconstructing the Kinematics of a Salt Diapir Inside a Fold-and-Thrust Belt: Preliminary Results. In: Çiner, A., et al. Recent Research on Sedimentology, Stratigraphy, Paleontology, Geochemistry, Volcanology, Tectonics, and Petroleum Geology. MedGU 2022. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-031-48758-3_47

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