Geometry and structural evolution of Lorbeus diapir, northwestern Tunisia: polyphase diapirism of the North African inverted passive margin
International audience Detailed geologic mapping, structural analysis, field cross-sections, new dating based on planktonic foraminifera, in addition to gravity signature of Lorbeus diapir, are used to characterize polyphase salt diapirism. This study highlights the role of inherited faulting, which...
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ftcollegfrance:oai:HAL:hal-01882010v1 2024-06-23T07:56:16+00:00 Geometry and structural evolution of Lorbeus diapir, northwestern Tunisia: polyphase diapirism of the North African inverted passive margin Masrouhi, Amara Bellier, Olivier Koyi, Hemin Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) ANR-11-LABX-0061,OTMed,Objectif Terre : Bassin Méditerranéen(2011) 2014 https://hal.science/hal-01882010 https://doi.org/10.1007/s00531-013-0992-3 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00531-013-0992-3 hal-01882010 https://hal.science/hal-01882010 doi:10.1007/s00531-013-0992-3 ISSN: 1437-3254 EISSN: 1437-3262 International Journal of Earth Sciences https://hal.science/hal-01882010 International Journal of Earth Sciences, 2014, 103 (3), pp.881-900. ⟨10.1007/s00531-013-0992-3⟩ [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics info:eu-repo/semantics/article Journal articles 2014 ftcollegfrance https://doi.org/10.1007/s00531-013-0992-3 2024-06-13T23:39:52Z International audience Detailed geologic mapping, structural analysis, field cross-sections, new dating based on planktonic foraminifera, in addition to gravity signature of Lorbeus diapir, are used to characterize polyphase salt diapirism. This study highlights the role of inherited faulting, which controls and influences the piercement efficiency and the style and geometry of the diapir; and also the localization of evaporite early ascent displaying diapiric growth during extension. Salt was extruded along the graben axis developed within extensional regional early Cretaceous tectonic associated with the North African passive margin evolution. Geologic data highlight reactive diapirism during Albian time (most extreme extension period) and passive diapirism during the late Cretaceous post-rift stage. Northeastern Maghreb salt province gives evidences that contractional deformations are not associated with significant diapirism. During shortening, the initial major graben deforms as complex anticlines where diapirs are squeezed and pinched from their feeding. Article in Journal/Newspaper Planktonic foraminifera Collège de France: HAL International Journal of Earth Sciences 103 3 881 900 |
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Open Polar |
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Collège de France: HAL |
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ftcollegfrance |
language |
English |
topic |
[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics |
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[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics Masrouhi, Amara Bellier, Olivier Koyi, Hemin Geometry and structural evolution of Lorbeus diapir, northwestern Tunisia: polyphase diapirism of the North African inverted passive margin |
topic_facet |
[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics |
description |
International audience Detailed geologic mapping, structural analysis, field cross-sections, new dating based on planktonic foraminifera, in addition to gravity signature of Lorbeus diapir, are used to characterize polyphase salt diapirism. This study highlights the role of inherited faulting, which controls and influences the piercement efficiency and the style and geometry of the diapir; and also the localization of evaporite early ascent displaying diapiric growth during extension. Salt was extruded along the graben axis developed within extensional regional early Cretaceous tectonic associated with the North African passive margin evolution. Geologic data highlight reactive diapirism during Albian time (most extreme extension period) and passive diapirism during the late Cretaceous post-rift stage. Northeastern Maghreb salt province gives evidences that contractional deformations are not associated with significant diapirism. During shortening, the initial major graben deforms as complex anticlines where diapirs are squeezed and pinched from their feeding. |
author2 |
Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) ANR-11-LABX-0061,OTMed,Objectif Terre : Bassin Méditerranéen(2011) |
format |
Article in Journal/Newspaper |
author |
Masrouhi, Amara Bellier, Olivier Koyi, Hemin |
author_facet |
Masrouhi, Amara Bellier, Olivier Koyi, Hemin |
author_sort |
Masrouhi, Amara |
title |
Geometry and structural evolution of Lorbeus diapir, northwestern Tunisia: polyphase diapirism of the North African inverted passive margin |
title_short |
Geometry and structural evolution of Lorbeus diapir, northwestern Tunisia: polyphase diapirism of the North African inverted passive margin |
title_full |
Geometry and structural evolution of Lorbeus diapir, northwestern Tunisia: polyphase diapirism of the North African inverted passive margin |
title_fullStr |
Geometry and structural evolution of Lorbeus diapir, northwestern Tunisia: polyphase diapirism of the North African inverted passive margin |
title_full_unstemmed |
Geometry and structural evolution of Lorbeus diapir, northwestern Tunisia: polyphase diapirism of the North African inverted passive margin |
title_sort |
geometry and structural evolution of lorbeus diapir, northwestern tunisia: polyphase diapirism of the north african inverted passive margin |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-01882010 https://doi.org/10.1007/s00531-013-0992-3 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
ISSN: 1437-3254 EISSN: 1437-3262 International Journal of Earth Sciences https://hal.science/hal-01882010 International Journal of Earth Sciences, 2014, 103 (3), pp.881-900. ⟨10.1007/s00531-013-0992-3⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00531-013-0992-3 hal-01882010 https://hal.science/hal-01882010 doi:10.1007/s00531-013-0992-3 |
op_doi |
https://doi.org/10.1007/s00531-013-0992-3 |
container_title |
International Journal of Earth Sciences |
container_volume |
103 |
container_issue |
3 |
container_start_page |
881 |
op_container_end_page |
900 |
_version_ |
1802649263317975040 |