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Sedimentary dynamics of an ephemeral sand bank island (Kachelotplate, German Wadden Sea): An atlas of sedimentary structures

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Abstract

The Kachelotplate is an ephemeral sand bank island which frequently appeared and disappeared since the first recorded in nautical charts of the 17th century. Within the stability field of barrier islands it represents the sole occurrence of an ephemeral sand body showing formation of initial aeolian dunes with vegetation cover. Due to its exposed position the Kachelotplate complex is strongly affected by high hydrodynamic impact of storm surges occurring several times a year. This results in sedimentary dynamics preventing the development of a stable, storm-resistant dune belt which would be necessary for the evolution of a barrier island. Nevertheless, most of the sedimentary/structural units of the Kachelotplate are known as typical elements of the adjacent barrier islands. These findings suggest that this ephemeral sand bank island may reflect the ‘missing link’ in the well-establishedBarckhausen model of barrier island evolution.

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Correspondence to Achim Wehrmann.

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Wehrmann, A., Tilch, E. Sedimentary dynamics of an ephemeral sand bank island (Kachelotplate, German Wadden Sea): An atlas of sedimentary structures. Senckenbergiana maritima 38, 185–198 (2008). https://doi.org/10.1007/BF03055295

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  • DOI: https://doi.org/10.1007/BF03055295

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