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4262415 
Journal Article 
Spatial Distribution of Iron and Manganese Compounds in Bottom Sediments of the Goczalkowice Dam Reservoir 
Czaplicka, A; Slusarczyk, Z; Szarek-Gwiazda, Ewa; Bazan, S 
2017 
39 
3 
47-54 
Polish 
WOS:000412619400007 
Analysis of the bottom sediment composition in the shallow, polimictic Goczalkowice dam reservoir demonstrated that the amounts of Mn and Fe compounds determined did to a small extent only exceed the level of their geochemical background. Spatial distribution of iron and manganese content in the Goczalkowice dam reservoir was developed on the basis of the bottom sediment composition studies for the reservoir. There is an evidence of both natural and anthropogenic origin of the two elements. Correlations between their presence and the content of granulometric bottom sediment fractions, organic matter amount, depth of the measuring points as well as concentration of other trace elements (Cd, Cu, Ni, Pb, Zn) in the sediments were developed. Statistical testing allowed for identification of varying statistical strength between the content of Fe and Mn and fine bottom sediment fractions. Three groups of measuring points identified in the dam reservoir substantially differed from each other by Fe and Mn bottom sediment content. In addition, differentation in their concentration along longitudinal transects of the dam reservoir was demonstrated. 
Goczalkowice dam reservoir; bottom sediments; Fe and Mn compounds; spatial distribution; correlations; cluster analysis