Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)

A high-resolution cyclostratigraphic and magnetostratigraphic study was carried out on cyclically bedded successions of middle Miocene lacustrine to distal alluvial fan-floodplain deposits from the Calatayud basin, in northeast Spain. Eight (partially overlapping) subsections near the village of Ore...

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Autores: Aziz, Hayfaa Abdul, Hilgen, Frederik J., Krijgsman, Wout, Sanz Montero, María Esther, Calvo Sorando, José Pedro
Tipo de recurso: artículo
Fecha de publicación:2000
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/60451
Acceso en línea:https://hdl.handle.net/20.500.14352/60451
Access Level:acceso abierto
Palabra clave:551.58
Terrestrial sedimentation
Miocene
Cyclic processes
Magnetostratigraphy
Climate change
Geodinámica
2507 Geofísica
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spelling Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)Aziz, Hayfaa AbdulHilgen, Frederik J.Krijgsman, WoutSanz Montero, María EstherCalvo Sorando, José Pedro551.58Terrestrial sedimentationMioceneCyclic processesMagnetostratigraphyClimate changeGeodinámica2507 GeofísicaA high-resolution cyclostratigraphic and magnetostratigraphic study was carried out on cyclically bedded successions of middle Miocene lacustrine to distal alluvial fan-floodplain deposits from the Calatayud basin, in northeast Spain. Eight (partially overlapping) subsections near the village of Orera are correlated in detail using distinct sedimentary cycle patterns or by following marker beds in the field. Together they form the Orera Composite Section (OCS). Sedimentary cycles are recognised on at least two different scales. The basic small-scale cycles in the OCS consist of an alternation of grey and, occasionally, red clays with white, dolomite-rich, carbonate beds. They are arranged in largerscaled, so-called large-scale cycles based on repetitive changes in the overall carbonate-clay lithology. Two other, but less distinct, types of intermediate scale cyclicity are also recognised. In terms of depositional environment, the cycle hierarchy is interpreted to represent periodic lake expansion over the palaeo-alluvial fan-floodplain area. The palaeomagnetic results yield a reliable magnetostratigraphic record, which confirms the cyclostratigraphic correlations between the subsections in detail. Rock magnetic experiments reveal that haematite is the main magnetic carrier of the primary component. The magnetostratigraphy of the OCS is correlated straightforwardly with the geomagnetic polarity time scale. This resulted in an age of 10.7^12.8 Ma for the entire succession, which is supported by fossil micromammal findings. In addition, it also reveals the presence of two, possibly three, short new polarity intervals. Based on the number of cycles in the OCS the average periodicity of the basic small-scale cycles is approximately 23 000 yr, while the large-scale cycle indicates a periodicity of 400 000 yr. This suggests that these sedimentary cycles are controlled by astronomically induced climate changes causing lake-level fluctuations and thus resulting in the deposition of carbonate-clay cycles. The continental sequences of the OCS provide a unique opportunity to extend the astronomical polarity time scale into the middle Miocene. The overlap of such continental sequences in the Mediterranean area with time-equivalent astronomically induced marine sequences is fundamental for establishing marine^continental, bed-tobed, correlations and for understanding regional climate change.Elsevier Science B.V., AmsterdamUniversidad Complutense de Madrid20002000-01-0120002000-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/60451reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttps://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/604512026-06-02T12:44:21Z
dc.title.none.fl_str_mv Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)
title Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)
spellingShingle Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)
Aziz, Hayfaa Abdul
551.58
Terrestrial sedimentation
Miocene
Cyclic processes
Magnetostratigraphy
Climate change
Geodinámica
2507 Geofísica
title_short Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)
title_full Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)
title_fullStr Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)
title_full_unstemmed Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)
title_sort Astronomical forcing of sedimentary cycles in the middle to late Miocene continental Calatayud Basin (NE Spain)
dc.creator.none.fl_str_mv Aziz, Hayfaa Abdul
Hilgen, Frederik J.
Krijgsman, Wout
Sanz Montero, María Esther
Calvo Sorando, José Pedro
author Aziz, Hayfaa Abdul
author_facet Aziz, Hayfaa Abdul
Hilgen, Frederik J.
Krijgsman, Wout
Sanz Montero, María Esther
Calvo Sorando, José Pedro
author_role author
author2 Hilgen, Frederik J.
Krijgsman, Wout
Sanz Montero, María Esther
Calvo Sorando, José Pedro
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 551.58
Terrestrial sedimentation
Miocene
Cyclic processes
Magnetostratigraphy
Climate change
Geodinámica
2507 Geofísica
topic 551.58
Terrestrial sedimentation
Miocene
Cyclic processes
Magnetostratigraphy
Climate change
Geodinámica
2507 Geofísica
description A high-resolution cyclostratigraphic and magnetostratigraphic study was carried out on cyclically bedded successions of middle Miocene lacustrine to distal alluvial fan-floodplain deposits from the Calatayud basin, in northeast Spain. Eight (partially overlapping) subsections near the village of Orera are correlated in detail using distinct sedimentary cycle patterns or by following marker beds in the field. Together they form the Orera Composite Section (OCS). Sedimentary cycles are recognised on at least two different scales. The basic small-scale cycles in the OCS consist of an alternation of grey and, occasionally, red clays with white, dolomite-rich, carbonate beds. They are arranged in largerscaled, so-called large-scale cycles based on repetitive changes in the overall carbonate-clay lithology. Two other, but less distinct, types of intermediate scale cyclicity are also recognised. In terms of depositional environment, the cycle hierarchy is interpreted to represent periodic lake expansion over the palaeo-alluvial fan-floodplain area. The palaeomagnetic results yield a reliable magnetostratigraphic record, which confirms the cyclostratigraphic correlations between the subsections in detail. Rock magnetic experiments reveal that haematite is the main magnetic carrier of the primary component. The magnetostratigraphy of the OCS is correlated straightforwardly with the geomagnetic polarity time scale. This resulted in an age of 10.7^12.8 Ma for the entire succession, which is supported by fossil micromammal findings. In addition, it also reveals the presence of two, possibly three, short new polarity intervals. Based on the number of cycles in the OCS the average periodicity of the basic small-scale cycles is approximately 23 000 yr, while the large-scale cycle indicates a periodicity of 400 000 yr. This suggests that these sedimentary cycles are controlled by astronomically induced climate changes causing lake-level fluctuations and thus resulting in the deposition of carbonate-clay cycles. The continental sequences of the OCS provide a unique opportunity to extend the astronomical polarity time scale into the middle Miocene. The overlap of such continental sequences in the Mediterranean area with time-equivalent astronomically induced marine sequences is fundamental for establishing marine^continental, bed-tobed, correlations and for understanding regional climate change.
publishDate 2000
dc.date.none.fl_str_mv 2000
2000-01-01
2000
2000-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/60451
url https://hdl.handle.net/20.500.14352/60451
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
https://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
https://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier Science B.V., Amsterdam
publisher.none.fl_str_mv Elsevier Science B.V., Amsterdam
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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