Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)
Report on Pleistocene fluvial sediments (sheet No. 13-134 Český Brod)
Abstract
The Pleistocene fluvial sediments cover large areas, particularly in the NE part of the map. The petrology and heavy minerals were studied and the Labe terraces and those of its tributaries were differentiated. Preserved terraces were stratigraphically classified into Lower, Middle and Upper Pleistocene. Three high-level terraces in the altitudes 77(74), 76(62-65) and 66(56-60) m above the river are correlated with the Lower Pleistocene. The group of three lower terraces, 58(46-50), 33(22-31) and 22(7-9)m above the river represent Middle Pleistocene. The up to 11.8 m thick gravel aggradation in the valley of the Šembera brook correlates with Upper Pleistocene. It should be stressed here, that most of the gravel aggradations, related previously to Labe, were deposited by some ancient, at present non-existing stream or streams flowing from the south into the Labe valley.
