The Late Pleistocene-Holocene sedimentary evolution of the Sines Contourite Drift (SW Portuguese Margin): A multiproxy approach
17 pages, 11 figures, 1 table
Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | artículo biblioteca |
| Language: | English |
| Published: |
Elsevier
2020-09
|
| Subjects: | Sines Contourite Drift, Sediment properties, Late Pleistocene-Holocene, Mediterranean Outflow Water, Climate variations, |
| Online Access: | http://hdl.handle.net/10261/222392 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100001871 http://dx.doi.org/10.13039/501100011033 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
dig-icm-es-10261-222392 |
|---|---|
| record_format |
koha |
| institution |
ICM ES |
| collection |
DSpace |
| country |
España |
| countrycode |
ES |
| component |
Bibliográfico |
| access |
En linea |
| databasecode |
dig-icm-es |
| tag |
biblioteca |
| region |
Europa del Sur |
| libraryname |
Biblioteca del ICM España |
| language |
English |
| topic |
Sines Contourite Drift Sediment properties Late Pleistocene-Holocene Mediterranean Outflow Water Climate variations Sines Contourite Drift Sediment properties Late Pleistocene-Holocene Mediterranean Outflow Water Climate variations |
| spellingShingle |
Sines Contourite Drift Sediment properties Late Pleistocene-Holocene Mediterranean Outflow Water Climate variations Sines Contourite Drift Sediment properties Late Pleistocene-Holocene Mediterranean Outflow Water Climate variations Teixeira, Manuel Terrinha, Pedro Roque, Cristina Voelker, Antje H.L. Silva, Pedro Salgueiro, Emilia Abrantes, Fátima Naughton, Filipa Mena, Anxo Ercilla, Gemma Casas, David The Late Pleistocene-Holocene sedimentary evolution of the Sines Contourite Drift (SW Portuguese Margin): A multiproxy approach |
| description |
17 pages, 11 figures, 1 table |
| author2 |
Fundação para a Ciência e a Tecnologia (Portugal) |
| author_facet |
Fundação para a Ciência e a Tecnologia (Portugal) Teixeira, Manuel Terrinha, Pedro Roque, Cristina Voelker, Antje H.L. Silva, Pedro Salgueiro, Emilia Abrantes, Fátima Naughton, Filipa Mena, Anxo Ercilla, Gemma Casas, David |
| format |
artículo |
| topic_facet |
Sines Contourite Drift Sediment properties Late Pleistocene-Holocene Mediterranean Outflow Water Climate variations |
| author |
Teixeira, Manuel Terrinha, Pedro Roque, Cristina Voelker, Antje H.L. Silva, Pedro Salgueiro, Emilia Abrantes, Fátima Naughton, Filipa Mena, Anxo Ercilla, Gemma Casas, David |
| author_sort |
Teixeira, Manuel |
| title |
The Late Pleistocene-Holocene sedimentary evolution of the Sines Contourite Drift (SW Portuguese Margin): A multiproxy approach |
| title_short |
The Late Pleistocene-Holocene sedimentary evolution of the Sines Contourite Drift (SW Portuguese Margin): A multiproxy approach |
| title_full |
The Late Pleistocene-Holocene sedimentary evolution of the Sines Contourite Drift (SW Portuguese Margin): A multiproxy approach |
| title_fullStr |
The Late Pleistocene-Holocene sedimentary evolution of the Sines Contourite Drift (SW Portuguese Margin): A multiproxy approach |
| title_full_unstemmed |
The Late Pleistocene-Holocene sedimentary evolution of the Sines Contourite Drift (SW Portuguese Margin): A multiproxy approach |
| title_sort |
late pleistocene-holocene sedimentary evolution of the sines contourite drift (sw portuguese margin): a multiproxy approach |
| publisher |
Elsevier |
| publishDate |
2020-09 |
| url |
http://hdl.handle.net/10261/222392 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100001871 http://dx.doi.org/10.13039/501100011033 |
| work_keys_str_mv |
AT teixeiramanuel thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT terrinhapedro thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT roquecristina thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT voelkerantjehl thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT silvapedro thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT salgueiroemilia thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT abrantesfatima thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT naughtonfilipa thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT menaanxo thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT ercillagemma thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT casasdavid thelatepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT teixeiramanuel latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT terrinhapedro latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT roquecristina latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT voelkerantjehl latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT silvapedro latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT salgueiroemilia latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT abrantesfatima latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT naughtonfilipa latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT menaanxo latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT ercillagemma latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach AT casasdavid latepleistoceneholocenesedimentaryevolutionofthesinescontouritedriftswportuguesemarginamultiproxyapproach |
| _version_ |
1777667291006107648 |
| spelling |
dig-icm-es-10261-2223922023-01-17T13:00:52Z The Late Pleistocene-Holocene sedimentary evolution of the Sines Contourite Drift (SW Portuguese Margin): A multiproxy approach Teixeira, Manuel Terrinha, Pedro Roque, Cristina Voelker, Antje H.L. Silva, Pedro Salgueiro, Emilia Abrantes, Fátima Naughton, Filipa Mena, Anxo Ercilla, Gemma Casas, David Fundação para a Ciência e a Tecnologia (Portugal) Ministerio de Economía y Competitividad (España) Agencia Estatal de Investigación (España) Sines Contourite Drift Sediment properties Late Pleistocene-Holocene Mediterranean Outflow Water Climate variations 17 pages, 11 figures, 1 table The Sines Contourite Drift (SCD), located in the Alentejo margin, southwest Iberian continental margin, has been through many depositional phases in result of climatic variations and bottom current oscillations, which determined a variable depositional pattern and an irregular sedimentary evolution since the Late Pleistocene. The SCD, being in the main path of the Mediterranean Outflow Water (MOW), which greatly constrains the sedimentary building of this drift, constitutes the distal part of the Gulf of Cadiz Contourite Depositional System and its sedimentary evolution therefore reflects the history of MOW variations. In order to investigate this, we report on a multiproxy analysis of grain-size, carbon content and physical, geochemical, and environmental-magnetic properties on the AMS 14C dated 350-cm long gravity core CO14-GC-07, retrieved in the SCD, at 1425 meters water depth (mwd). The main objective is to reconstruct the evolution of the sedimentary package of the SCD from >43 cal kyr BP to Present and bring new insights about the impact of bottom currents' activity on the morphosedimentary evolution of the margin. Results show the existence of four distinct depositional phases in response to climate variations and bottom current oscillations during the Late Pleistocene-Holocene. Phase 1 (350–322 cm: >42.9 cal kyr BP) occurred in Marine Isotope Stage (MIS) 3 and presents silty-muddy sediments with presence of shell fragments and moderate bioturbation. Phase 2 (322–176 cm: >42.9–~30.5 cal kyr BP), which lasted from middle MIS 3 to the onset of MIS 2, reveals sediment coarsening towards the top limit, suggesting climate cooling and strong bottom current winnowing. Phase 3 (176–144 cm: ~30.5–17.1 cal kyr BP) covers most of MIS 2 prior to the last deglaciation and shows the sharpest variations on all sediment properties and the coarsest sediment facies, with Fe-rich layers associated with the increase of terrigenous input and sea-level regression that coincide with the enhancement of MOW. Phase 4 (144–0 cm: <17.1 cal kyr BP) is associated with the deglacial sea-level rise and represents a calmer depositional environment with finer sediments and increasing contributions of biogenic material. The MOW is the most prominent bottom current and the most active seabed shaping agent in the study area, whose vertical shifting during glacial (~800–2200 mwd) and interglacial (600–1500 mwd) periods is coincident with the most active morphosedimentary sector of the area, contributing to the development of landslide scars and sediment waves M. Teixeira thanks FCT (Fundação para a Ciência e a Tecnologia) - the Portuguese Foundation for Science and Technology – for funding this PhD (SFRH/BD/110674/2015). [...] F. Abrantes, A. Voelker, E. Salgueiro, and F. Naughton thank the support of the Portuguese national funds from FCT - Foundation for Science and Technology through project UIDB/04326/2020 (CCMAR). [...] This publication is supported by FCT funded projects - UIDB/GEO/50019/2020 – IDL and MAGICLAND (PTDC/CTA-GEO/30381/2017), and by the FAUCES project (CTM2015-65461-C2-1-R) With the funding support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S), of the Spanish Research Agency (AEI) Peer reviewed 2020-11-06T08:07:58Z 2020-11-06T08:07:58Z 2020-09 artículo http://purl.org/coar/resource_type/c_6501 Sedimentary Geology 407: 105737 (2020) 0037-0738 CEX2019-000928-S http://hdl.handle.net/10261/222392 10.1016/j.sedgeo.2020.105737 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100001871 http://dx.doi.org/10.13039/501100011033 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-65461-C2-1-R Sí none Elsevier |