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  1. No Access

    Article

    Changes in Magnetic Parameters After Sequential Iron Phase Extraction of Eastern Mediterranean Sapropel S1 Sediments

    Iron is distributed over different minerals (i.e. silicates, pyrite, detrital oxides) that are present in a sediment sequence that formed under anoxic conditions. After post-depositional re-oxidation of the se...

    J.F.L. Garming, G.J. de Lange, M.J. Dekkers… in Studia Geophysica et Geodaetica (2004)

  2. No Access

    Article

    Oxidation and Origin of Organic Matter in Surficial Eastern Mediterranean Hemipelagic Sediments

    Aerobic mineralisation of Corg in surface sedimentsof the deep (>2000 m water depth) eastern Mediterranean Sea has been quantified by analysis of detailedbox core Corg concentration versus depth profiles and the ...

    P. J. M. Van Santvoort, G. J. De Lange, J. Thomson, S. Colley… in Aquatic Geochemistry (2002)

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    Article

    An unusual mid-Pleistocene monsoon period over Africa and Asia

    During the Quaternary period, organic-rich black layers called sapropels were intermittently deposited in the deep eastern Mediterranean Sea1,2 following high flood periods of the Nile River3. During the past 250...

    M. Rossignol-Strick, M. Paterne, F. C. Bassinot, K.-C. Emeis, G. J. De Lange in Nature (1998)

  4. No Access

    Article

    Post-depositional stability of long-chain alkenones under contrasting redox conditions

    PRYMNESIOPHYTE algae, which include the coccolithophorid species Emiliania huxleyi1, are the recognized biological source of a series of long-chain (C37, c38, 39, unsaturated methyl and ethyl ketones2 widely obse...

    F. G. Prahl, G. J. de Lange, M. Lyle, M. A. Sparrow in Nature (1989)

  5. No Access

    Article

    Discovery of an anoxic basin within the Strabo Trench, eastern Mediterranean

    We report here the discovery of a basin, which we call the Tyro Basin, in the eastern Mediterranean in which anoxic conditions exist and organic-rich sediments are accumulating. Bottom water samples show extre...

    D. Jongsma, A. R. Fortuin, W. Huson, S. R. Troelstra, G. T. Klaver, J. M. Peters… in Nature (1983)

  6. No Access

    Article

    Recent sapropel formation in the eastern Mediterranean

    During the 1983 expedition of the RV Tyro in the eastern Mediterranean, a combined programme of seismological, micropalaeontological and geochemical research was performed. The geochemical research focused mainly...

    G. J. de Lange, H. L. ten Haven in Nature (1983)

  7. No Access

    Article

    Geochemical evidence of a massive slide in the southern Norwegian Sea

    During the 1981 cruise of the MS Tyro to the southern Norwegian Basin several piston-cores were collected for sedimentological research. Some of these were available for geochemical study (Fig. 1). In laboratory ...

    G. J. de Lange in Nature (1983)