The extent of penetrative Pyrenean deformation in the Ebro foreland Basin : magnetic fabric data from the eastern sector
Parés Casanova, Josep María (Centro Nacional de Investigación sobre la Evolución Humana (CENIEH))
Anastasio, David (Lehigh University. Earth and Environmental Sciences Department)

Date:	2018
Abstract:	We studied Cenozoic sedimentary rocks in the NE Ebro foreland Basin using the Anisotropy of Magnetic Susceptibility (AMS) as a proxy for grain preferred orientation. Our new data, in combination with existing results, reveal that penetrative strain by layer-parallel shortening extends well beyond the Pyrenean thrust-wedge front into the Ebro foreland Basin, challenging the concept of the location of "deformation front" in the Southern Pyrenees. Penetrative strain, as revealed by the magnetic fabrics, seems to reach larger distances into the Ebro foreland Basin where stiffer layers constitute the main detachment level, whereas to the East strain dissipates closer to the deformation front when the detachment is mostly due to salt deposits.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	South-pyrenean frontal thrust ; Anisotropy of magnetic susceptibility ; Cenozoic ; Layer parallel shortening
Published in:	Geologica acta, Vol. 16 Núm. 4 (December 2018) , p. 375-390 (Articles) , ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/347813
Adreça alternativa: https://revistes.ub.edu/index.php/GEOACTA/article/view/GeologicaActa2018.16.4.3
DOI: 10.1344/GeologicaActa2018.16.4.3

16 p, 9.6 MB

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