Articles | Volume 12, issue 12
https://doi.org/10.5194/se-12-2735-2021
https://doi.org/10.5194/se-12-2735-2021
Research article
 | 
15 Dec 2021
Research article |  | 15 Dec 2021

Chronology of thrust propagation from an updated tectono-sedimentary framework of the Miocene molasse (western Alps)

Amir Kalifi, Philippe Hervé Leloup, Philippe Sorrel, Albert Galy, François Demory, Vincenzo Spina, Bastien Huet, Frédéric Quillévéré, Frédéric Ricciardi, Daniel Michoux, Kilian Lecacheur, Romain Grime, Bernard Pittet, and Jean-Loup Rubino

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Cited articles

Aguilar, J.-P., Berggren, W. A., Aubry, M.-P., Kent, D. V., Clauzon, G., Benammi, M., and Michaux, J.: Mid-Neogene Mediterranean marine–continental correlations: an alternative interpretation, Palaeogeogr. Palaeocl., 204, 165–186, 2004. 
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Allen, P. A. and Bass, J. P.: Sedimentology of the upper marine molasse of the Rhône-Alp Region, Eastern France: implications of basin evolution, Eclogae Geol. Helv., 86, 121–172, 1993. 
Arnaud, H., Combier, J., and Monjuvent, G.: Notice explicative, Carte géol. France (1 / 50 000), feuille Romans-sur-Isère (795), BRGM, Orléans, 30 pp., 1975. 
Barféty, J.-C. and Barbier, R.: Carte géologique (1 / 50 000), feuille La Rochette (750), BRGM, Orléans, 1983. 
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Short summary
Molasse deposits, deposited and deformed at the western Alpine front during the Miocene (23 to 5.6 Ma), record the chronology of that deformation. We combine the first precise chronostratigraphy (precision of ∼0.5 Ma) of the Miocene molasse, the reappraisal of the regional structure, and the analysis of growth deformation structures in order to document three tectonic phases and the precise chronology of thrust westward propagation during the second one involving the Belledonne basal thrust.
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