Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)

This paper focuses on the relationships between the large-scale stratigraphic architecture of the Almazán basin infill and the sedimentation rates (SR) calculated for precise time intervals. Our aim is to improve the understanding of the timing and causes of the architectural changes, their signific...

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Autores: Valero Montesa, Luis, Huerta, Pedro, Garcés Crespo, Miguel, Armenteros, Ildefonso, Beamud Amorós, Elisabet, Gómez Paccard, Miriam
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
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:2445/164287
Acceso en línea:https://hdl.handle.net/2445/164287
Access Level:acceso abierto
Palabra clave:Sedimentologia
Conques sedimentàries
Estratigrafia
Paleogen
Sedimentology
Sedimentary basins
Stratigraphic geology
Paleogene
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spelling Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)Valero Montesa, LuisHuerta, PedroGarcés Crespo, MiguelArmenteros, IldefonsoBeamud Amorós, ElisabetGómez Paccard, MiriamSedimentologiaConques sedimentàriesEstratigrafiaPaleogenSedimentologySedimentary basinsStratigraphic geologyPaleogeneThis paper focuses on the relationships between the large-scale stratigraphic architecture of the Almazán basin infill and the sedimentation rates (SR) calculated for precise time intervals. Our aim is to improve the understanding of the timing and causes of the architectural changes, their significance in terms of accommodation space and sediment supply, and their relationship with climate and tectonics. The study area includes the Gómara fluvial fan, the main sediment transfer system of the Almazán basin during Paleogene times. Its large-scale architecture shifted through time between a stacking pattern of low density ribbon-like and high density sheet-like channel fills. Laterally to the fluvial system, mudstone and evaporitic mudstone units represented evaporitic mudflats which passed laterally into palustrine/lacustrine limestone units interpreted as lakes and ponds. Stacked calcretes occurred in distal alluvial and distal floodplain settings. A magnetostratigraphy encompassing 2600 meters guided by available fossil mammal biochronology has provided a temporal framework that spans the complete Paleogene infill of the basin, from Late Lutetian to Late Oligocene, filling a gap in the Cenozoic chronostratigraphy of Spanish basins. This permits to constrain the kinematics of the structures both in the basin and in its margins, and to provide the timing for the depositional sequences. These data, combined with a magnetostratigraphic map, where magnetic reversals were traced through the Gómara monocline, allow a detailed analysis of the SR variability across the fluvial system and its adjacent depositional environments. The results show that high sedimentation rates (around 30-40 cm/kyr) are related to fluvial environments with low density ribbon-shaped channels, while low SR (around or below 10 cm/kyr) are related to high density sheet-like channels. Laterally, mud dominated environments with high SR (15-20 cm/kyr) grade into palustrine/lacustrine carbonated environments with low SR (around 9 cm/ky). The lowest SR (about 3 cm/kyr) are related to the development of stacked calcrete profiles in distal floodplain and in the connection of distal alluvial and palustrine/lacustrine units.John Wiley & Sons2020202020172020info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion37 p.application/pdfapplication/pdfhttps://hdl.handle.net/2445/164287Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)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/bre.12145Basin Research, 2017, vol. 29, num. 1, p. 213-232https://doi.org/10.1111/bre.12145(c) European Association of Geoscientists & Engineers and International Association of Sedimentologists., 2017info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1642872026-05-29T05:05:01Z
dc.title.none.fl_str_mv Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)
title Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)
spellingShingle Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)
Valero Montesa, Luis
Sedimentologia
Conques sedimentàries
Estratigrafia
Paleogen
Sedimentology
Sedimentary basins
Stratigraphic geology
Paleogene
title_short Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)
title_full Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)
title_fullStr Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)
title_full_unstemmed Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)
title_sort Linking sedimentation rates and large-scale architecture for facies prediction in nonmarine basins (Paleogene, Almazán Basin, Spain)
dc.creator.none.fl_str_mv Valero Montesa, Luis
Huerta, Pedro
Garcés Crespo, Miguel
Armenteros, Ildefonso
Beamud Amorós, Elisabet
Gómez Paccard, Miriam
author Valero Montesa, Luis
author_facet Valero Montesa, Luis
Huerta, Pedro
Garcés Crespo, Miguel
Armenteros, Ildefonso
Beamud Amorós, Elisabet
Gómez Paccard, Miriam
author_role author
author2 Huerta, Pedro
Garcés Crespo, Miguel
Armenteros, Ildefonso
Beamud Amorós, Elisabet
Gómez Paccard, Miriam
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Sedimentologia
Conques sedimentàries
Estratigrafia
Paleogen
Sedimentology
Sedimentary basins
Stratigraphic geology
Paleogene
topic Sedimentologia
Conques sedimentàries
Estratigrafia
Paleogen
Sedimentology
Sedimentary basins
Stratigraphic geology
Paleogene
description This paper focuses on the relationships between the large-scale stratigraphic architecture of the Almazán basin infill and the sedimentation rates (SR) calculated for precise time intervals. Our aim is to improve the understanding of the timing and causes of the architectural changes, their significance in terms of accommodation space and sediment supply, and their relationship with climate and tectonics. The study area includes the Gómara fluvial fan, the main sediment transfer system of the Almazán basin during Paleogene times. Its large-scale architecture shifted through time between a stacking pattern of low density ribbon-like and high density sheet-like channel fills. Laterally to the fluvial system, mudstone and evaporitic mudstone units represented evaporitic mudflats which passed laterally into palustrine/lacustrine limestone units interpreted as lakes and ponds. Stacked calcretes occurred in distal alluvial and distal floodplain settings. A magnetostratigraphy encompassing 2600 meters guided by available fossil mammal biochronology has provided a temporal framework that spans the complete Paleogene infill of the basin, from Late Lutetian to Late Oligocene, filling a gap in the Cenozoic chronostratigraphy of Spanish basins. This permits to constrain the kinematics of the structures both in the basin and in its margins, and to provide the timing for the depositional sequences. These data, combined with a magnetostratigraphic map, where magnetic reversals were traced through the Gómara monocline, allow a detailed analysis of the SR variability across the fluvial system and its adjacent depositional environments. The results show that high sedimentation rates (around 30-40 cm/kyr) are related to fluvial environments with low density ribbon-shaped channels, while low SR (around or below 10 cm/kyr) are related to high density sheet-like channels. Laterally, mud dominated environments with high SR (15-20 cm/kyr) grade into palustrine/lacustrine carbonated environments with low SR (around 9 cm/ky). The lowest SR (about 3 cm/kyr) are related to the development of stacked calcrete profiles in distal floodplain and in the connection of distal alluvial and palustrine/lacustrine units.
publishDate 2017
dc.date.none.fl_str_mv 2017
2020
2020
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/2445/164287
url https://hdl.handle.net/2445/164287
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.12145
Basin Research, 2017, vol. 29, num. 1, p. 213-232
https://doi.org/10.1111/bre.12145
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 37 p.
application/pdf
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 (Dinàmica de la Terra i l'Oceà)
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 15,81155

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