publication . Article . Other literature type . 2017

Mediterranean Outflow Water variability during the Early Pleistocene

Kaboth, Stefanie; Grunert, Patrick; Lourens, Lucas; Stratigraphy and paleontology; Stratigraphy & paleontology;
Open Access English
  • Published: 17 Aug 2017
  • Country: Netherlands
Abstract
Abstract. Gaining insights into the evolution of Mediterranean Outflow Water (MOW) during the Early Pleistocene has been so far hampered by the lack of available palaeoclimatic archives. Here we present the first benthic foraminifera stable oxygen and carbon isotope records and grain-size data from IODP Expedition 339 Site U1389 presently located within the upper core of the MOW in the Gulf of Cadiz for the time interval between 2.6 and 1.8 Ma. A comparison with an intermediate water mass record from the Mediterranean Sea strongly suggest an active MOW supplying Site U1389 on glacial–interglacial timescales during the Early Pleistocene. We also find indication that the increasing presence of MOW in the Gulf of Cadiz during the investigated time interval aligns with the progressive northward protrusion of Mediterranean sourced intermediate water masses into the North Atlantic, possibly modulating the intensification of the North Atlantic Meridional Overturning Circulation at the same time. Additionally, our results suggest that MOW flow strength was already governed by precession and semi-precession cyclicity during the Early Pleistocene against the background of glacial–interglacial variability.
Persistent Identifiers
Fields of Science and Technology classification (FOS)
01 natural sciences, 0105 earth and related environmental sciences, 010502 geochemistry & geophysics, 010504 meteorology & atmospheric sciences
Sustainable Development Goals (SDG)
14. Life underwater
Subjects
free text keywords: Global and Planetary Change, Stratigraphy, Palaeontology, Paleontology, Global and Planetary Change, Early Pleistocene, Water mass, Outflow, Geology, Foraminifera, biology.organism_classification, biology, Mediterranean sea, Benthic zone, Oceanography, Mediterranean climate, lcsh:Environmental pollution, lcsh:TD172-193.5, lcsh:Environmental protection, lcsh:TD169-171.8, lcsh:Environmental sciences, lcsh:GE1-350
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NARCIS
Article . 2017
Providers: NARCIS
Open Access
Climate of the Past (CP)
Other literature type . 2018
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