Articles | Volume 11, issue 3
https://doi.org/10.5194/se-11-999-2020
https://doi.org/10.5194/se-11-999-2020
Research article
 | 
17 Jun 2020
Research article |  | 17 Jun 2020

Control of 3-D tectonic inheritance on fold-and-thrust belts: insights from 3-D numerical models and application to the Helvetic nappe system

Richard Spitz, Arthur Bauville, Jean-Luc Epard, Boris J. P. Kaus, Anton A. Popov, and Stefan M. Schmalholz

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Cited articles

Austin, N., Evans, B., Herwegh, M., and Ebert, A.: Strain localization in the Morcles nappe (Helvetic Alps, switzerland), Swiss J. Geosci., 101, 341–360, 2008. a, b, c
Ayrton, S.: La géologie de la zone Martigny-Chamonix (versant suisse) et l'origine de la nappe de Morcles (un exemple de subduction continentale), Eclogae Geological Helvetiae, 73/1, 137–172, 1980. a
Ayrton, S., Barféty, J., Bellière, J., Gubler, Y., and Jemelin, L.: Carte géologique de Chamonix (1/50 000), BRGM, Orléans, 1987. a
Badertscher, N. P. and Burkhard, M.: Brittle–ductile deformation in the Glarus thrust Lochseiten (LK) calc-mylonite, Terra Nova, 12, 281–288, 2000. a
Badertscher, N. P., Abart, R., Burkhard, M., and McCaig, A.: Fluid flow pathways along the Glarus overthrust derived from stable and Sr-isotope patterns, Am. J. Sci., 302, 517–547, 2002. a
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Short summary
We apply three-dimensional (3D) thermo-mechanical numerical simulations of the shortening of the upper crustal region of a passive margin in order to investigate the control of 3D laterally variable inherited structures on fold-and-thrust belt evolution and associated nappe formation. The model is applied to the Helvetic nappe system of the Swiss Alps. Our results show a 3D reconstruction of the first-order tectonic evolution showing the fundamental importance of inherited geological structures.