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The Przekop Wisły (or the Vistula Cross-cut) is a canal created 120 years ago in the Vistula River mouth to prevent floods. In 2013/2014, 82 samples of canal sediments were collected in three sessions, which were next subjected to macroscopic descriptions and sieve analyses, including calculation of granulation indices expressed in the phi scale. Characteristics of granulation are presented in relation...
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