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Modern concretions in intertidal flats of the Lower Saxonian Wadden Sea, Southern North Sea

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Abstract

The occurrence of iron-rich concretions in intertidal areas of the Lower Saxonian Wadden Sea is described. These are found on top of sediments, mostly after erosion of formerMya arenaria beds. They usually contain an iron core around which layers of reduced and oxidised authigenic iron-rich minerals are arranged more or less concentrically. For the most part, these cores are composed of intact ammunition shells or fragments thereof, clearly relating the origin of these concretions to dumping activities after the second World War. Possible modes of formation of such concretions are discussed.

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Authors and Affiliations

  1. Forschungszentrum Terramare, Schleusenstraße 1, 26382, Wilhelmshaven, Germany

    Gerd Liebezeit

  2. FB Chemie, Carl von Ossietzky Universität Oldenburg, Postfach 2503, 26111, Oldenburg, Germany

    Gerd Liebezeit

  3. Forschungsinstitut Senckenberg, Abteilung für Meeresforschung, Südstrand 40-44, 26382, Wilhelmshaven, Germany

    Achim Wehrmann

  4. Fachhochschule Aachen, Abteilung Jülich, Fachbereich Chemie und Biotechnik, Ginsterweg 1, 52428, Jülich, Germany

    Sabine Hamacher

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  1. Gerd Liebezeit
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  2. Achim Wehrmann
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  3. Sabine Hamacher
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Correspondence to Gerd Liebezeit.

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Liebezeit, G., Wehrmann, A. & Hamacher, S. Modern concretions in intertidal flats of the Lower Saxonian Wadden Sea, Southern North Sea. Senckenbergiana maritima 32, 147–154 (2003). https://doi.org/10.1007/BF03043090

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  • DOI: https://doi.org/10.1007/BF03043090

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