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Kaboth, Stefanie; Grunert, Patrick; Lourens, Lucas Joost (2017): Mediterranean Outflow Water variability during the Early Pleistocene [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.871499, Supplement to: Kaboth, S et al. (2017): Mediterranean Outflow Water variability during the Early Pleistocene. Climate of the Past, 13(8), 1023-1035, https://doi.org/10.5194/cp-13-1023-2017

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Abstract:
Gaining insights into the evolution of Mediterranean Outflow Water (MOW) during the Early Pleistocene climate transition has been so far hampered by the lack of available paleoclimatic 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 dominated by the obliquity cycle of Earth's inclination axis.
Project(s):
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Coverage:
Latitude: 36.425000 * Longitude: -7.277000
Event(s):
339-U1389 * Latitude: 36.425000 * Longitude: -7.277000 * Elevation: -644.0 m * Campaign: Exp339 (Mediterranean Outflow) * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Kaboth, S; Grunert, P; Lourens, LJ (2017): Stable carbon isotopic ratios of Planulina ariminensis of IODP Site 339-U1389. https://doi.org/10.1594/PANGAEA.871495
  2. Kaboth, S; Grunert, P; Lourens, LJ (2017): Stable oxygen isotopic ratios of benthic foraminifera of IODP Site 339-U1389. https://doi.org/10.1594/PANGAEA.871496
  3. Kaboth, S; Grunert, P; Lourens, LJ (2017): Grain size distribution of IODP Site 339-U1389. https://doi.org/10.1594/PANGAEA.871498
  4. Kaboth, S; Grunert, P; Lourens, LJ (2017): Sedimentation rates of IODP Site 339-U1389. https://doi.org/10.1594/PANGAEA.871497