Stein, Ruediger; Bleil, Ulrich (1986): Sedimentation rates and isotope data of Pyrgo murrhina from DSDP Hole 14-141 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.761089, Supplement to: Stein, R; Bleil, U (1986): Deep-water circulation in the Northeast Atlantic and climatic changes during the Late Neogene (DSDP Site 141). Marine Geology, 70(3-4), 191-209, https://doi.org/10.1016/0025-3227(86)90002-2
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Abstract:
Oxygen and carbon stable isotope data of Pyrgo murrhina and flux rates of calcium carbonate in the bio- and magnetostratigraphically dated sediment sequence at DSDP Site 141 were used for a reconstruction of the deep-water circulation in the Northeast Atlantic during Late Miocene and Pliocene times. A distinct change towards reduced advection of deep water recorded near 5.4 Ma is contemporaneous with the cessation of the outflow of the saline Mediterranean water into the Atlantic. During the Pliocene, between 4.5 and 2.75 Ma and between 2.1 and 1.8 Ma, North Atlantic Deep Water (NADW) circulation was sluggish and Site 141 possibly influenced by Antarctic Bottom Water (AABW). Near 2.75 Ma, the advection of well-oxidized NADW was strongly intensified. This change is related to an onset of major Arctic ice growth and/or a major cooling of NADW.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 19.419300 * Longitude: -23.998500
Date/Time Start: 1970-11-05T00:00:00 * Date/Time End: 1970-11-05T00:00:00
Event(s):
14-141 * Latitude: 19.419300 * Longitude: -23.998500 * Date/Time: 1970-11-05T00:00:00 * Elevation: -4148.0 m * Penetration: 298 m * Recovery: 72.3 m * Location: North Atlantic/DIAPIR * Campaign: Leg14 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 81 m cored; 0 m drilled; 89.3 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Stein, R; Bleil, U (1986): (Table 2) Oxygen and carbon isotope data of Pyrgo murrhina from DSDP Hole 14-141. https://doi.org/10.1594/PANGAEA.761087
- Stein, R; Bleil, U (1986): (Table 1) Sedimentation rates of DSDP Hole 14-141. https://doi.org/10.1594/PANGAEA.761084