Paleoceanography

Cover image for Vol. 30 Issue 5

Early View (Online Version of Record published before inclusion in an issue)

Impact Factor: 3.738

ISI Journal Citation Reports © Ranking: 2014: 1/49 (Paleontology); 4/61 (Oceanography); 14/175 (Geosciences Multidisciplinary)

Online ISSN: 1944-9186

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  1. 1 - 13
  1. Research Articles

    1. Threshold behavior of a marine-based sector of the East Antarctic Ice Sheet in response to early Pliocene ocean warming

      Melissa A. Hansen, Sandra Passchier, Boo-Keun Khim, Buhan Song and Trevor Williams

      Article first published online: 24 JUN 2015 | DOI: 10.1002/2014PA002704

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      Key Points

      • Early Pliocene obliquity-paced ice growth onto the Wilkes Land continental shelf
      • Iceberg discharges coincide with eccentricity minima in the early Pliocene
      • Precession-forced iceberg discharges from ~4.6 Ma onward
    2. Offset timing of climate oscillations during the last two glacial-interglacial transitions connected with large-scale freshwater perturbation

      Patricia Jiménez-Amat and Rainer Zahn

      Article first published online: 24 JUN 2015 | DOI: 10.1002/2014PA002710

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      Key Points

      • Last Interglacial started within 1000 years or less
      • Younger Dryas-type rebound occurred during last interglacial
      • Continuing ice melt delayed full interglacial conditions by several millennia
    3. Impact of global SST gradients on the Mediterranean runoff changes across the Plio-Pleistocene transition

      Florence Colleoni, Annalisa Cherchi, Simona Masina and Christopher M. Brierley

      Article first published online: 22 JUN 2015 | DOI: 10.1002/2015PA002780

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      Key Points

      • Annual mean Pliocene Mediterranean runoff is 40% larger than today
      • Global SST cooling increases water deficit due to lower precipitation and runoff
      • Changes in Hadley circulation could increase water supply in northwest Africa
    4. Evidence for reduced export productivity following the Cretaceous/Paleogene mass extinction

      Selen Esmeray-Senlet, James D. Wright, Richard K. Olsson, Kenneth G. Miller, James V. Browning and Tracy M. Quan

      Article first published online: 18 JUN 2015 | DOI: 10.1002/2014PA002724

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      Key Points

      • Following the K/Pg, shelf surface-bottom δ13C gradients and TOC accumulation rates collapsed
      • Planktonic δ13C gradients were maintained and cross-shelf δ13C gradients accentuated after the K/Pg
      • Shelf and deep sea records indicate reduced export productivity (Living Ocean) after the K/Pg
    5. Modeling water isotopologues during the last glacial: Implications for quantitative paleosalinity reconstruction

      Thibaut Caley and Didier M. Roche

      Article first published online: 18 JUN 2015 | DOI: 10.1002/2014PA002720

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      Key Points

      • We simulate salinity and water isotopes for conditions during the last glacial
      • Large errors for past quantitative salinity with actual δ18O-salinity relation
      • Use water isotopologues reduce uncertainties on quantitative paleosalinity
    6. Redox-controlled preservation of organic matter during “OAE 3” within the Western Interior Seaway

      Allyson Tessin, Ingrid Hendy, Nathan Sheldon and Bradley Sageman

      Article first published online: 16 JUN 2015 | DOI: 10.1002/2014PA002729

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      Key Points

      • Bottom water redox changes triggered carbon burial within the WIS during OAE 3
      • Anoxia developed due to O2 drawdown in a stratified water column
      • Redox-controlled changes in OM preservation altered primary δ13Corg signals
    7. New magnetobiostratigraphic chronology and paleoceanographic changes across the Oligocene-Miocene boundary at DSDP Site 516 (Rio Grande Rise, SW Atlantic)

      Fabio Florindo, Rocco Gennari, Davide Persico, Elena Turco, Giuliana Villa, Pontus C. Lurcock, Andrew P. Roberts, Aldo Winkler, Lionel Carter and Stephen F. Pekar

      Article first published online: 11 JUN 2015 | DOI: 10.1002/2014PA002734

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      Key Points

      • Oligocene-Miocene magnetobiostratigraphic chronology
      • Changes in planktonic productivity during the Mi-1 glacial event
      • Transient variations in SW Atlantic bottom water flow patterns
    8. Persistent millennial-scale climate variability in the eastern tropical North Pacific over the last two glacial cycles

      Elsa Arellano-Torres, Raja S. Ganeshram, Laetitia E. Pichevin and David Alberto Salas-de-Leon

      Article first published online: 11 JUN 2015 | DOI: 10.1002/2014PA002714

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      Key Points

      • ETNP records over 240 ka give new insight of the tropics' role in climate change
      • Climate cycles of 2–6 ka prevail over the 1–2 ka/cycle over the last two glacials
      • The pacing of millennial climate is amplified by oceanic and atmospheric processes
    9. Evidence for sea level and monsoonally driven variations in terrigenous input to the northern East China Sea during the last 24.3 ka

      Fengming Chang, Tiegang Li, Zhifang Xiong and Zhaokai Xu

      Article first published online: 9 JUN 2015 | DOI: 10.1002/2014PA002733

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      Key Points

      • Supporting evidence for the conventional LGM lowstand age of 21 ka
      • Clear geochemical and sedimentological signatures of meltwater pulses
      • Potentially sea level fall following the inter-Allerød cold interval
    10. Interhemispheric controls on deep ocean circulation and carbon chemistry during the last two glacial cycles

      David J. Wilson, Alexander M. Piotrowski, Albert Galy and Virupaxa K. Banakar

      Article first published online: 6 JUN 2015 | DOI: 10.1002/2014PA002707

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      Key Points

      • Northern Hemisphere signal in Southern Ocean Nd isotopes related to NADW
      • Role for precessional forcing of ocean circulation during glacial inception
      • Ocean circulation and carbon storage decoupled within glacial periods
    11. Aeolian process and climatic changes in loess records from the northeastern Tibetan Plateau: Response to global temperature forcing since 30 ka

      Xianyan Wang, Shuangwen Yi, Huayu Lu, Jef Vandenberghe and Zhiyong Han

      Article first published online: 2 JUN 2015 | DOI: 10.1002/2014PA002731

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      Key Points

      • Loess from northeastern Tibetan Plateau (NETP) dated by high-resolution OSL ages
      • Dust accumulations were broadly correlated with cold millennial climate events
      • Dust accumulates in the NETP only when the cold events reach to a threshold
    12. Linkages between rapid climate variability and deep-sea benthic foraminifera in the deep Subantarctic South Atlantic during the last 95 kyr

      Paula Diz and Stephen Barker

      Article first published online: 2 JUN 2015 | DOI: 10.1002/2015PA002784

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      Key Points

      • Phytodetritus deposition varies with millennial-scale climate variability
      • Development of phytoplankton blooms is related to AMOC and the bipolar seesaw
      • Enhanced bloom formation accompanies leakage of atmospheric CO2
    13. Comparing dust flux records from the Subarctic North Pacific and Greenland: Implications for atmospheric transport to Greenland and for the application of dust as a chronostratigraphic tool

      Sascha Serno, Gisela Winckler, Robert F. Anderson, Edith Maier, Haojia Ren, Rainer Gersonde and Gerald H. Haug

      Article first published online: 2 JUN 2015 | DOI: 10.1002/2014PA002748

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      Key Points

      • Greenland ice core dust record is strongly influenced by atmospheric transport
      • Applying a dust record from the North Pacific as a chronostratigraphic tool
      • Reconstructed surface paleoreservoir ages since the end of Heinrich Stadial 2

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