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Title: From salt‐bearing rifted margins to fold‐and‐thrust belts. Insights from analog modeling and northern calcareous alps case study
Author: Santolaria, Pablo
Granado, Pablo
Wilson, E.P.
de Matteis, M.
Ferrer García, J. Oriol (José Oriol)
Strauss, Philipp
Pelz, Klaus
König, M.
Oteleanu, A.E.
Roca i Abella, Eduard
Muñoz, J. A.
Keywords: Tectònica salina
Geologia estructural
Tectonique du sel
Structural geology
Issue Date: 17-Nov-2022
Publisher: Wiley
Abstract: Analog modeling is used to study the role played by the inherited salt-sediment architecture of a salt-bearing rifted margin, developed by minibasin downbuilding and margin-scale gliding, and then incorporated into a fold-and-thrust belt system influenced by surface processes. Inherited salt bodies localize contractional deformation at different scales and the salt-sediment architecture determines structural styles of fold-and-thrust belts. In our analog models, a large-transport thrust detached along allochthonous model salt (silicone polymer) accumulated in a former distal raft system. And the squeezing of salt walls, together with the tilting of minibasins, accounted for most of the shortening in a salt wall-minibasin province. Shortening and surface processes promote the extrusion and erosion of about 75% of the original model salt. The role played by salt tectonics during the contraction of salt-bearing rifted margins could be underestimated because of the low salt-sediment ratio found in fold-and-thrust belts. Our modeling results are compared with and assist in the interpretation of a section along the Northern Calcareous Alps.
Note: Reproducció del document publicat a:
It is part of: Tectonics, 2022, vol. 41, num. 11, p. e2022TC0075
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ISSN: 0278-7407
Appears in Collections:Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)

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