Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic framework

This study investigates the geometries of fault-controlled dolostone geobodies and their structural and sequence stratigraphic controls, which provide new insights for the prediction and production of fault-controlled dolomitized hydrocarbon reservoirs. A very thick succession (>1600 m) of Aptian...

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Autores: Yao, S., Gómez Rivas, Enrique, Martín, Juan Diego (Martín Martín), Gómez-Gras, David, Travé i Herrero, Anna, Griera i Artigas, Albert, Howell, J.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/162665
Acceso en línea:https://hdl.handle.net/2445/162665
Access Level:acceso abierto
Palabra clave:Estratigrafia seqüencial
Geologia estructural
Dolomia
Roques calcàries
Sequence stratigraphy
Structural geology
Dolomite
Carbonate rocks
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spelling Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic frameworkYao, S.Gómez Rivas, EnriqueMartín, Juan Diego (Martín Martín)Gómez-Gras, DavidTravé i Herrero, AnnaGriera i Artigas, AlbertHowell, J.Estratigrafia seqüencialGeologia estructuralDolomiaRoques calcàriesSequence stratigraphyStructural geologyDolomiteCarbonate rocksThis study investigates the geometries of fault-controlled dolostone geobodies and their structural and sequence stratigraphic controls, which provide new insights for the prediction and production of fault-controlled dolomitized hydrocarbon reservoirs. A very thick succession (>1600 m) of Aptian-Albian shallow-marine carbonates of the Benassal Formation that crop out in the Benicàssim area (Maestrat Basin, eastern Spain) is partly replaced by dolomite, resulting in dolostone geometries ranging from massive patches to stratabound bodies. Detailed mapping, systematic logging and correlation were carried out to characterize the structural, sedimentary and sequence stratigraphic framework in the area and to constrain the principal controls on the full-range of dolostone geometries. The results show that carbonate sediments accumulated in a half graben stacked in three transgressive-regressive (T-R) sequences. Large-scale massive dolostone patches (with up to kilometre extension) form near largescale faults indicating that they acted as entry points for warm dolomitizing fluids into the basin. These dolostone patches laterally pass to large stratabound bodies that extend for long distances (at least 7 km) away from feeding faults, forming a continuum. The presence of a regional unconformity and a clastic fine-grain low-permeability unit (Escucha Formation) on top of the Benassal Formation likely constrained the dolomitization fluids to an up to 580 m thick interval below the base of the Escucha Formation. Thus, only limestones within this interval, corresponding to the two uppermost T-R sequences, were dolomitized. There is a clear relationship between the stratigraphic framework and the preferred replaced beds. Dolomitization preferentially affected sediments deposited in inner to middle ramp settings with predominant wackestone to packstone textures. Such facies are laterally most abundant in the east of the study area (i.e. basinwards) and vertically in layers around the maximum flooding zone of the top sequence, which is preferentially affected by dolomitization.International Association of Sedimentologists2020202120202020info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion34 p.application/pdfapplication/pdfhttps://hdl.handle.net/2445/162665Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1111/sed.12739Sedimentology, 2020https://doi.org/10.1111/sed.12739(c) Yao, S. et al., 2020info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1626652026-05-29T05:05:01Z
dc.title.none.fl_str_mv Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic framework
title Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic framework
spellingShingle Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic framework
Yao, S.
Estratigrafia seqüencial
Geologia estructural
Dolomia
Roques calcàries
Sequence stratigraphy
Structural geology
Dolomite
Carbonate rocks
title_short Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic framework
title_full Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic framework
title_fullStr Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic framework
title_full_unstemmed Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic framework
title_sort Fault-controlled dolostone geometries in a transgressive-regressive sequence stratigraphic framework
dc.creator.none.fl_str_mv Yao, S.
Gómez Rivas, Enrique
Martín, Juan Diego (Martín Martín)
Gómez-Gras, David
Travé i Herrero, Anna
Griera i Artigas, Albert
Howell, J.
author Yao, S.
author_facet Yao, S.
Gómez Rivas, Enrique
Martín, Juan Diego (Martín Martín)
Gómez-Gras, David
Travé i Herrero, Anna
Griera i Artigas, Albert
Howell, J.
author_role author
author2 Gómez Rivas, Enrique
Martín, Juan Diego (Martín Martín)
Gómez-Gras, David
Travé i Herrero, Anna
Griera i Artigas, Albert
Howell, J.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Estratigrafia seqüencial
Geologia estructural
Dolomia
Roques calcàries
Sequence stratigraphy
Structural geology
Dolomite
Carbonate rocks
topic Estratigrafia seqüencial
Geologia estructural
Dolomia
Roques calcàries
Sequence stratigraphy
Structural geology
Dolomite
Carbonate rocks
description This study investigates the geometries of fault-controlled dolostone geobodies and their structural and sequence stratigraphic controls, which provide new insights for the prediction and production of fault-controlled dolomitized hydrocarbon reservoirs. A very thick succession (>1600 m) of Aptian-Albian shallow-marine carbonates of the Benassal Formation that crop out in the Benicàssim area (Maestrat Basin, eastern Spain) is partly replaced by dolomite, resulting in dolostone geometries ranging from massive patches to stratabound bodies. Detailed mapping, systematic logging and correlation were carried out to characterize the structural, sedimentary and sequence stratigraphic framework in the area and to constrain the principal controls on the full-range of dolostone geometries. The results show that carbonate sediments accumulated in a half graben stacked in three transgressive-regressive (T-R) sequences. Large-scale massive dolostone patches (with up to kilometre extension) form near largescale faults indicating that they acted as entry points for warm dolomitizing fluids into the basin. These dolostone patches laterally pass to large stratabound bodies that extend for long distances (at least 7 km) away from feeding faults, forming a continuum. The presence of a regional unconformity and a clastic fine-grain low-permeability unit (Escucha Formation) on top of the Benassal Formation likely constrained the dolomitization fluids to an up to 580 m thick interval below the base of the Escucha Formation. Thus, only limestones within this interval, corresponding to the two uppermost T-R sequences, were dolomitized. There is a clear relationship between the stratigraphic framework and the preferred replaced beds. Dolomitization preferentially affected sediments deposited in inner to middle ramp settings with predominant wackestone to packstone textures. Such facies are laterally most abundant in the east of the study area (i.e. basinwards) and vertically in layers around the maximum flooding zone of the top sequence, which is preferentially affected by dolomitization.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
2021
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/2445/162665
url https://hdl.handle.net/2445/162665
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/sed.12739
Sedimentology, 2020
https://doi.org/10.1111/sed.12739
dc.rights.none.fl_str_mv (c) Yao, S. et al., 2020
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Yao, S. et al., 2020
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 34 p.
application/pdf
application/pdf
dc.publisher.none.fl_str_mv International Association of Sedimentologists
publisher.none.fl_str_mv International Association of Sedimentologists
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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