Seismic multichannel reflection profiles from the Gulf of Cadiz, IODP Expedition 339

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 lim...

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Bibliographic Details
Main Authors: Hernandéz-Molina, Francisco Javier, Stow, Dorrik A V, Alvarez Zarikian, Carlos A, Acton, Gary D, Bahr, André, Balestra, Barbara, Ducassou, Emmanuelle, Flood, Roger D, Flores, José-Abel, Furota, Satoshi, Grunert, Patrick, Hodell, David A, Jiménez-Espejo, Francisco Jose, Kim, Jin Kyoung, Krissek, Lawrence A, Kuroda, Junichiro, Li, Bill, Llave, Estefania, Lofi, Johanna, Lourens, Lucas Joost, Miller, Max, Nanayama, Futoshi, Nishida, Naohisa, Richter, Carl, Roque, C, Pereira, H, Sanchez Goñi, Maria Fernanda, Sierro, Francisco Javier, Singh, Arun Deo, Sloss, Craig, Takashimizu, Yasuhiro, Tzanova, Alexandrina, Voelker, Antje H L, Williams, Trevor, Xuan, Chuang
Format: Dataset
Language:English
Published: PANGAEA 2014
Subjects:
Event label
Exp339
File format
File size
Gulf of Cádiz
Atlantic Ocean
Integrated Ocean Drilling Program / International Ocean Discovery Program
IODP
Joides Resolution
Latitude of event
Latitude of event 2
Longitude of event
Longitude of event 2
Mediterranean Outflow
P74-45
PD00-833
Reference/source
Seismic reflection profile
SEISREFL
Uniform resource locator/link to graphic
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.832885
https://doi.org/10.1594/PANGAEA.832885
Description
Summary: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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