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  <leader>01649nab a2200217 i 4500</leader>
  <controlfield tag="001">acta24721</controlfield>
  <controlfield tag="005">20220726090845.0</controlfield>
  <controlfield tag="008">161017s1984    hu      o     0||   eng d</controlfield>
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   <subfield code="a">0365-8066</subfield>
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  <datafield tag="040" ind1=" " ind2=" ">
   <subfield code="a">SZTE Egyetemi Kiadványok Repozitórium</subfield>
   <subfield code="b">hun</subfield>
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   <subfield code="a">eng</subfield>
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  <datafield tag="100" ind1="2" ind2=" ">
   <subfield code="a">El-Fishawi Nabil M.</subfield>
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  <datafield tag="245" ind1="1" ind2="0">
   <subfield code="a">Roundness and sphericity of the Nile Delta coastal sands</subfield>
   <subfield code="h">[elektronikus dokumentum] /</subfield>
   <subfield code="c"> El-Fishawi Nabil M.</subfield>
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  <datafield tag="260" ind1=" " ind2=" ">
   <subfield code="a">University of Szeged, Department of Mineralogy, Geochemistry and Petrology</subfield>
   <subfield code="b">Szeged</subfield>
   <subfield code="c">1984</subfield>
  </datafield>
  <datafield tag="300" ind1=" " ind2=" ">
   <subfield code="a">235-245</subfield>
  </datafield>
  <datafield tag="490" ind1="0" ind2=" ">
   <subfield code="a">Acta mineralogica-petrographica</subfield>
   <subfield code="v">26 No. 2</subfield>
  </datafield>
  <datafield tag="520" ind1="3" ind2=" ">
   <subfield code="a">The roundness and sphericity of the Nile Delta coastal sands were studied. Definite correlations between the size and the roundness and sphericity were established. The roundness and sphericity were observed to be complex functions of each other, rather than to be in a linear relationship. A difference in roundness and sphericity was found normal to the shoreline, so that a distance of a few hundred metres makes a complete change in their values. The principal difference comes from the sorting processes of the hydrodynamic forces affecting the coast. It is possible that these studies can be used to differentiate sediments of the Nile Delta coast. The lateral variation of roundness and sphericity was found to be improved and can be applied to the tudy of the sediment movement.</subfield>
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   <subfield code="a">Természettudományok</subfield>
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   <subfield code="a">Föld- és kapcsolódó környezettudományok</subfield>
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   <subfield code="a">Kőzettan, Ásványtan, Földtan</subfield>
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  <datafield tag="856" ind1="4" ind2="0">
   <subfield code="u">http://acta.bibl.u-szeged.hu/24721/1/mineralogica_026_fasc_002_235-245.pdf</subfield>
   <subfield code="z">Dokumentum-elérés </subfield>
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