Articles

Title:	Facies model of the contemporary delta lobe of the Vistula River
Authors:	Koszka-Maroń Dorota
Abstract:	This study presents a morphodynamic and facies model of the currently active section of the Vistula River delta lobe, with considerations of the delta front and prodelta that have been active since 1895. The morphodynamic model was created based on bathymetric charts of the contemporary river mouth area from 1890 – 2000. Deposits of the delta front primarily comprise sand facies of up to 13 m thick. Three lithofacies of the Vistula delta lobe have been identified: X – loamy silt, fine-grained sand with an admixture of medium-grained sand, YI – mediumgrained sand with an admixture of fine-grained sand, and YII – coarse-grained sand with an admixture of medium-grained sand. Vertical succession and thicknesses of the identified facies vary considerably depending on the region of the lobe. In 1894, an underwater slope descended to a depth of 15 m over 1500 m, yielding a mean gradient of 1:100. In 1895, a 7 km canal, the Przekop Wisły, was excavated to channel most of the Vistula River’s water. In 2000, 105 years after the opening of the Przekop Wisły, the volume of sediment accumulated in the lobe had reached 133.39 million m³. Over the past 112 years, the shoreline around the Vistula River mouth has moved seaward by 1.5 km on the eastern side and by ca. 2.5 km on the western side. The 5 m isobath has shifted seaward by ca. 3 km, and the 10 m and 15 m isobaths by 2.5 km each.
DOI:
Type of paper:	Original research paper
Pages:	57 to 68
Cytation:	Koszka-Maroń D., 2009, Facies model of the contemporary delta lobe of the Vistula River, Ocean. Hydrob. Studies, 38(Suppl. 1): 57-68
Keywords:	Vistula, delta front, prodelta, morphometric model, facies model
Year:	2009
Category:
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