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Onset of Mediterranean outflow into the North Atlantic

Onset of Mediterranean outflow into the North Atlantic
Onset of Mediterranean outflow into the North Atlantic

Sediments cored along the southwestern Iberian margin during Integrated Ocean Drilling Program Expedition 339 provide constraints on Mediterranean Outflow Water (MOW) circulation patterns from the Pliocene epoch to the present day. After the Strait of Gibraltar opened (5.33 million years ago), a limited volume of MOW entered the Atlantic. Depositional hiatuses indicate erosion by bottom currents related to higher volumes of MOW circulating into the North Atlantic, beginning in the late Pliocene. The hiatuses coincide with regional tectonic events and changes in global thermohaline circulation (THC). This suggests that MOW influenced Atlantic Meridional Overturning Circulation (AMOC), THC, and climatic shifts by contributing a component of warm, saline water to northern latitudes while in turn being influenced by plate tectonics.
0036-8075
1244-1250
Hernandez-Molina, F.J.
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Stow, D.A.V.
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Alvarez-Zarikian, C.A.
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Acton, G.
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Bahr, A.
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Balestra, B.
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Ducassou, E.
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Flood, R.
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Flores, J.-A.
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Furota, S.
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Grunert, P.
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Hodell, D.
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Jimenez-Espejo, F.
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Kim, J.K.
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Krissek, L.
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Kuroda, J.
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Li, B.
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Llave, E.
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Lofi, J.
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Lourens, L.
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Miller, M.
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Nanayama, F.
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Nishida, N.
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Richter, C.
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Roque, C.
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Pereira, H.
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Sanchez Goni, M.F.
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Sierro, F.J.
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Singh, A.D.
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Sloss, C.
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Takashimizu, Y.
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Tzanova, A.
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Voelker, A.
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Williams, T.
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Xuan, C.
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Hernandez-Molina, F.J.
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Stow, D.A.V.
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Alvarez-Zarikian, C.A.
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Acton, G.
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Bahr, A.
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Balestra, B.
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Ducassou, E.
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Flood, R.
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Flores, J.-A.
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Furota, S.
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Grunert, P.
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Hodell, D.
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Jimenez-Espejo, F.
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Kim, J.K.
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Krissek, L.
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Kuroda, J.
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Li, B.
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Llave, E.
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Lofi, J.
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Lourens, L.
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Miller, M.
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Nanayama, F.
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Nishida, N.
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Richter, C.
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Roque, C.
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Pereira, H.
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Sanchez Goni, M.F.
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Sierro, F.J.
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Singh, A.D.
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Sloss, C.
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Takashimizu, Y.
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Tzanova, A.
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Voelker, A.
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Williams, T.
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Xuan, C.
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Hernandez-Molina, F.J., Stow, D.A.V., Alvarez-Zarikian, C.A., Acton, G., Bahr, A., Balestra, B., Ducassou, E., Flood, R., Flores, J.-A., Furota, S., Grunert, P., Hodell, D., Jimenez-Espejo, F., Kim, J.K., Krissek, L., Kuroda, J., Li, B., Llave, E., Lofi, J., Lourens, L., Miller, M., Nanayama, F., Nishida, N., Richter, C., Roque, C., Pereira, H., Sanchez Goni, M.F., Sierro, F.J., Singh, A.D., Sloss, C., Takashimizu, Y., Tzanova, A., Voelker, A., Williams, T. and Xuan, C. (2014) Onset of Mediterranean outflow into the North Atlantic. Science, 344 (6189), 1244-1250. (doi:10.1126/science.1251306).

Record type: Article

Abstract


Sediments cored along the southwestern Iberian margin during Integrated Ocean Drilling Program Expedition 339 provide constraints on Mediterranean Outflow Water (MOW) circulation patterns from the Pliocene epoch to the present day. After the Strait of Gibraltar opened (5.33 million years ago), a limited volume of MOW entered the Atlantic. Depositional hiatuses indicate erosion by bottom currents related to higher volumes of MOW circulating into the North Atlantic, beginning in the late Pliocene. The hiatuses coincide with regional tectonic events and changes in global thermohaline circulation (THC). This suggests that MOW influenced Atlantic Meridional Overturning Circulation (AMOC), THC, and climatic shifts by contributing a component of warm, saline water to northern latitudes while in turn being influenced by plate tectonics.

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More information

Accepted/In Press date: 8 May 2014
e-pub ahead of print date: 13 June 2014
Organisations: Geology & Geophysics

Identifiers

Local EPrints ID: 366593
URI: http://eprints.soton.ac.uk/id/eprint/366593
ISSN: 0036-8075
PURE UUID: fcc4bb64-cc57-4621-b004-01b3fdcb207b
ORCID for C. Xuan: ORCID iD orcid.org/0000-0003-4043-3073

Catalogue record

Date deposited: 03 Jul 2014 10:01
Last modified: 27 Jan 2022 02:43

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Contributors

Author: F.J. Hernandez-Molina
Author: D.A.V. Stow
Author: C.A. Alvarez-Zarikian
Author: G. Acton
Author: A. Bahr
Author: B. Balestra
Author: E. Ducassou
Author: R. Flood
Author: J.-A. Flores
Author: S. Furota
Author: P. Grunert
Author: D. Hodell
Author: F. Jimenez-Espejo
Author: J.K. Kim
Author: L. Krissek
Author: J. Kuroda
Author: B. Li
Author: E. Llave
Author: J. Lofi
Author: L. Lourens
Author: M. Miller
Author: F. Nanayama
Author: N. Nishida
Author: C. Richter
Author: C. Roque
Author: H. Pereira
Author: M.F. Sanchez Goni
Author: F.J. Sierro
Author: A.D. Singh
Author: C. Sloss
Author: Y. Takashimizu
Author: A. Tzanova
Author: A. Voelker
Author: T. Williams
Author: C. Xuan ORCID iD

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