CRETACEOUS SANDY-CLAYEY SEDIMENTS OF NORTH-SUDETIC TROUGH (LOWER SILESIA, POLAND) - MINERALOGY, GEOCHEMISTRY AND INDUSTRIAL APPLICATION
Wyszomirski P., Górniak K., Gawe³ A.
University of Mining and Metallurgy, 30-059 Kraków, Mickiewicza 30, Poland; e-mail: email@example.com
Key words: trace elements, kaolinite Tc, alluvial sediments, North-Sudetic Trough, Poland
The mineral composition of Cretaceous (Santonian) sandy-clayey sediments is dominated by quartz and kaolinite Tc. The most important role in the accumulation of subordinate and trace elements play: organic matter, oxide and sulphide minerals of iron, phosphate minerals of crandallite group and clay minerals. On the basis of comparison of these element content in different coloured rock complexes (black, red, grey and white one) results that white sediments are the poorest in them. It is caused by relatively high leachibility of the most mobile elements.