Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of France

The giant Jurassic-aged pockmark field of Beauvoisin developed in a 800 m wide depression for over 3.4 Ma during the Oxfordian; it formed below about 600 m water depth. It is composed of sub-sites organized in clusters and forming vertically stacked carbonate lenses encased in marls . This fine-scal...

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Autores: Gay, Aurélien, Favier, Alexiane, Potdevin, Jean-Luc, Lopez, Michel, Bosch, Delphine, Tribovillard, Nicolas, Ventalon, Sandra, Cavailhes, Thibault, Neumaier, Martin, Revillon, Sidonie, Travé i Herrero, Anna, Bruguier, Olivier, Delmas, Doriane, Nevado, Christophe
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/175812
Acceso en línea:https://hdl.handle.net/2445/175812
Access Level:acceso abierto
Palabra clave:Conques sedimentàries
França
Sedimentary basins
France
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spelling Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of FranceGay, AurélienFavier, AlexianePotdevin, Jean-LucLopez, MichelBosch, DelphineTribovillard, NicolasVentalon, SandraCavailhes, ThibaultNeumaier, MartinRevillon, SidonieTravé i Herrero, AnnaBruguier, OlivierDelmas, DorianeNevado, ChristopheConques sedimentàriesFrançaSedimentary basinsFranceThe giant Jurassic-aged pockmark field of Beauvoisin developed in a 800 m wide depression for over 3.4 Ma during the Oxfordian; it formed below about 600 m water depth. It is composed of sub-sites organized in clusters and forming vertically stacked carbonate lenses encased in marls . This fine-scale study is focused on a detailed analysis of petrographical organization and geochemical signatures of crystals that grew up in early to late fractures of carbonate lenses, surrounding nodules, and tubes that fed them. The isotopic signature (C, O and Sr) shows that at least three different episodes of fluid migration participated to the mineralization processes. Most of the carbonates precipitated when biogenic seepage was active in the shallow subsurface during the Oxfordian. The second phase occurred relatively soon after burial during early Cretaceous and thermogenic fluids came probably from underlying Pliensbachian, Late Toarcian or Bajocian levels. The third phase is a bitumen-rich fluid probably related to these levels reaching the oil window during Mio-Pliocene. The fluids migrated through faults induced by the emplacement of Triassic-salt diapir of Propiac during the Late Jurassic and that remained polyphased drain structures over time.EDP Sciences2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/175812Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1051/bsgf/2020036Bsgf-Earth Sciences Bulletin, 2020, vol. 191, num. 1, p. 35https://doi.org/10.1051/bsgf/2020036cc-by (c) Gay, A. et al., 2020http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1758122026-05-27T06:46:51Z
dc.title.none.fl_str_mv Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of France
title Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of France
spellingShingle Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of France
Gay, Aurélien
Conques sedimentàries
França
Sedimentary basins
France
title_short Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of France
title_full Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of France
title_fullStr Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of France
title_full_unstemmed Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of France
title_sort Poly-phased fluid flow in the giant fossil pockmark of Beauvoisin, SE basin of France
dc.creator.none.fl_str_mv Gay, Aurélien
Favier, Alexiane
Potdevin, Jean-Luc
Lopez, Michel
Bosch, Delphine
Tribovillard, Nicolas
Ventalon, Sandra
Cavailhes, Thibault
Neumaier, Martin
Revillon, Sidonie
Travé i Herrero, Anna
Bruguier, Olivier
Delmas, Doriane
Nevado, Christophe
author Gay, Aurélien
author_facet Gay, Aurélien
Favier, Alexiane
Potdevin, Jean-Luc
Lopez, Michel
Bosch, Delphine
Tribovillard, Nicolas
Ventalon, Sandra
Cavailhes, Thibault
Neumaier, Martin
Revillon, Sidonie
Travé i Herrero, Anna
Bruguier, Olivier
Delmas, Doriane
Nevado, Christophe
author_role author
author2 Favier, Alexiane
Potdevin, Jean-Luc
Lopez, Michel
Bosch, Delphine
Tribovillard, Nicolas
Ventalon, Sandra
Cavailhes, Thibault
Neumaier, Martin
Revillon, Sidonie
Travé i Herrero, Anna
Bruguier, Olivier
Delmas, Doriane
Nevado, Christophe
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Conques sedimentàries
França
Sedimentary basins
France
topic Conques sedimentàries
França
Sedimentary basins
France
description The giant Jurassic-aged pockmark field of Beauvoisin developed in a 800 m wide depression for over 3.4 Ma during the Oxfordian; it formed below about 600 m water depth. It is composed of sub-sites organized in clusters and forming vertically stacked carbonate lenses encased in marls . This fine-scale study is focused on a detailed analysis of petrographical organization and geochemical signatures of crystals that grew up in early to late fractures of carbonate lenses, surrounding nodules, and tubes that fed them. The isotopic signature (C, O and Sr) shows that at least three different episodes of fluid migration participated to the mineralization processes. Most of the carbonates precipitated when biogenic seepage was active in the shallow subsurface during the Oxfordian. The second phase occurred relatively soon after burial during early Cretaceous and thermogenic fluids came probably from underlying Pliensbachian, Late Toarcian or Bajocian levels. The third phase is a bitumen-rich fluid probably related to these levels reaching the oil window during Mio-Pliocene. The fluids migrated through faults induced by the emplacement of Triassic-salt diapir of Propiac during the Late Jurassic and that remained polyphased drain structures over time.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/175812
url https://hdl.handle.net/2445/175812
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1051/bsgf/2020036
Bsgf-Earth Sciences Bulletin, 2020, vol. 191, num. 1, p. 35
https://doi.org/10.1051/bsgf/2020036
dc.rights.none.fl_str_mv cc-by (c) Gay, A. et al., 2020
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Gay, A. et al., 2020
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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 15,300719

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