Analogue model of rift linkage and inversion with application to the Western Alps

Along-strike segmentation of orogens raises questions because its causes may predate orogeny in relation to structural inheritance. Here we focus on rift/margin linkage domains and their inversion by using analogue models with image analysis to extract the 3D strain field. Extensional models documen...

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Bibliographic Details
Published in:Comptes rendus. Geoscience 2024-01, Vol.356 (S2), p.309-329
Main Authors: Dall’Asta, Nicolas, Denèle, Yoann, Regard, Vincent, Frayssignes, Anne, Hoareau, Guilhem, Leroy, Sylvie, Pires, Thibaut
Format: Article
Language:English
Subjects:
Analogue models
Earth Sciences
Fault lines
Inheritance
Inheritances
Kinematics
Lithosphere
Orogeny
Rift inversion
Rift linkage
Sciences of the Universe
Strain field
Transition zone
Western Alps
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Summary:Along-strike segmentation of orogens raises questions because its causes may predate orogeny in relation to structural inheritance. Here we focus on rift/margin linkage domains and their inversion by using analogue models with image analysis to extract the 3D strain field. Extensional models document, depending on the strike-perpendicular offset and the brittle-crust thickness, three types of rift linkage modes: (1) oblique linkage with early T-fault, (2) strongly-oblique linkage with R-fault network and, (3) transfer-linkage with late Y-strike-slip fault. Analogue model of inverted rift basins is used to analyse the misunderstood tectonic evolution of transition zones in the segmented Western Alpine belt.
ISSN:1778-7025
1631-0713
1778-7025
DOI:10.5802/crgeos.231