Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)

Platform carbonates diagenesis in salt basins could be complex due to potential alterations of fluids related and non‐related to diapirism. This paper presents the diagenetic history of the Hettangian to Pliensbachian platform carbonates from the Tazoult salt wall area (central High Atlas, Morocco)....

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Autores: Moragas Rodriguez, Mar, Baqués Almirall, Vinyet, Travé i Herrero, Anna, Martín, Juan Diego (Martín Martín), Saura, Eduard, Messager, Grégoire, Hunt, D.W., Vergés i Masip, Jaume
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/162800
Acceso en línea:https://hdl.handle.net/2445/162800
Access Level:acceso abierto
Palabra clave:Geologia estructural
Juràssic
Gran Atles (Marroc : Serralada)
Structural geology
Jurassic Period
High Atlas Mountains (Morocco)
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spelling Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)Moragas Rodriguez, MarBaqués Almirall, VinyetTravé i Herrero, AnnaMartín, Juan Diego (Martín Martín)Saura, EduardMessager, GrégoireHunt, D.W.Vergés i Masip, JaumeGeologia estructuralJuràssicGran Atles (Marroc : Serralada)Structural geologyJurassic PeriodHigh Atlas Mountains (Morocco)Platform carbonates diagenesis in salt basins could be complex due to potential alterations of fluids related and non‐related to diapirism. This paper presents the diagenetic history of the Hettangian to Pliensbachian platform carbonates from the Tazoult salt wall area (central High Atlas, Morocco). Low structural relief and outcrop conditions allowed to define the entire diagenetic evolution occurred in the High Atlas diapiric basins since early stages of the diapiric activity up to their tectonic inversion. Precipitation of dolomite and calcite from both warmed marine‐derived and meteoric fluids characterised diagenetic stages during Pliensbachian, when the carbonate platforms were exposed and karstified. Burial diagenesis occurred from Toarcian to Middle Jurassic, due to changes of salt‐induced dynamic related to increase in siliciclastic input, fast diapir rise and rapid burial of Pliensbachian platforms. During this stage, the diapir acted as a physical barrier for fluid circulation between the core and the flanking sediments. In the carbonates and breccias flanking the structures, dolomite and calcite precipitated from basinal brines, whereas carbonate slivers located in the core of the structure, were affected by the circulation of Mn‐rich fluids. The final diagenetic event is characterised by the income of meteoric fluids into the system during uplift caused by Alpine orogeny. These results highlight the relevant influence of diapirism on the diagenetic modifications in salt‐related basins in terms of diagenetic events and involved fluids.John Wiley & Sons2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/162800Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1111/bre.12382Basin Research, 2020, vol. 32, num. 3, p. 546-566https://doi.org/10.1111/bre.12382(c) European Association of Geoscientists & Engineers and International Association of Sedimentologists., 2020info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1628002026-05-27T06:46:51Z
dc.title.none.fl_str_mv Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)
title Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)
spellingShingle Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)
Moragas Rodriguez, Mar
Geologia estructural
Juràssic
Gran Atles (Marroc : Serralada)
Structural geology
Jurassic Period
High Atlas Mountains (Morocco)
title_short Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)
title_full Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)
title_fullStr Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)
title_full_unstemmed Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)
title_sort Diagenetic evolution of lower Jurassic platform carbonates flanking the Tazoult salt wall (Central High Atlas, Morocco)
dc.creator.none.fl_str_mv Moragas Rodriguez, Mar
Baqués Almirall, Vinyet
Travé i Herrero, Anna
Martín, Juan Diego (Martín Martín)
Saura, Eduard
Messager, Grégoire
Hunt, D.W.
Vergés i Masip, Jaume
author Moragas Rodriguez, Mar
author_facet Moragas Rodriguez, Mar
Baqués Almirall, Vinyet
Travé i Herrero, Anna
Martín, Juan Diego (Martín Martín)
Saura, Eduard
Messager, Grégoire
Hunt, D.W.
Vergés i Masip, Jaume
author_role author
author2 Baqués Almirall, Vinyet
Travé i Herrero, Anna
Martín, Juan Diego (Martín Martín)
Saura, Eduard
Messager, Grégoire
Hunt, D.W.
Vergés i Masip, Jaume
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Geologia estructural
Juràssic
Gran Atles (Marroc : Serralada)
Structural geology
Jurassic Period
High Atlas Mountains (Morocco)
topic Geologia estructural
Juràssic
Gran Atles (Marroc : Serralada)
Structural geology
Jurassic Period
High Atlas Mountains (Morocco)
description Platform carbonates diagenesis in salt basins could be complex due to potential alterations of fluids related and non‐related to diapirism. This paper presents the diagenetic history of the Hettangian to Pliensbachian platform carbonates from the Tazoult salt wall area (central High Atlas, Morocco). Low structural relief and outcrop conditions allowed to define the entire diagenetic evolution occurred in the High Atlas diapiric basins since early stages of the diapiric activity up to their tectonic inversion. Precipitation of dolomite and calcite from both warmed marine‐derived and meteoric fluids characterised diagenetic stages during Pliensbachian, when the carbonate platforms were exposed and karstified. Burial diagenesis occurred from Toarcian to Middle Jurassic, due to changes of salt‐induced dynamic related to increase in siliciclastic input, fast diapir rise and rapid burial of Pliensbachian platforms. During this stage, the diapir acted as a physical barrier for fluid circulation between the core and the flanking sediments. In the carbonates and breccias flanking the structures, dolomite and calcite precipitated from basinal brines, whereas carbonate slivers located in the core of the structure, were affected by the circulation of Mn‐rich fluids. The final diagenetic event is characterised by the income of meteoric fluids into the system during uplift caused by Alpine orogeny. These results highlight the relevant influence of diapirism on the diagenetic modifications in salt‐related basins in terms of diagenetic events and involved fluids.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/162800
url https://hdl.handle.net/2445/162800
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1111/bre.12382
Basin Research, 2020, vol. 32, num. 3, p. 546-566
https://doi.org/10.1111/bre.12382
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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