caa a22 4500 469025824 CHVBK 20180323132729.0 cr unu---uuuuu 170328e19920801xx s 000 0 eng 10.1007/BF00185100 doi (NATIONALLICENCE)springer-10.1007/BF00185100 Borovec Z. Department of Petrology, Charles University, Albertov 6, CS-12843, Praha 2, Czechoslovakia aut The character of the fine fractions of the bottom sediments of the Bohemian part of the Labe (Elbe) river [Elektronische Daten] [Z. Borovec] The amounts of fractions with size ≦63 œm in the bottom sediments of the Bohemian part of the Labe (Elbe) river is variable. The grain-size distribution is poorly to very poorly sorted with a mean particle size from 5.1 to 12.2 œm. The crystalline phase of recent sediments of the Labe river draining various types of parent rocks has a simple mineral composition, with predominant mica/illite, quartz, kaolinite and chlorite (±vermiculite ±smectite). There are also very small amounts of interstratification of 10 Å and 14 Å sheet silicates (11-13.6 Å). Small amounts of Na-rich plagioclase, K-feldspar and calcite have also been found; accessory amounts of amphibole, authigenic gypsum and pyrite are also present. Opal in diatomic tests is an omnipresent constituent. In the amorphic inorganic phase, hydrated oxides predominate, where Si >Al >Fe >Mn in a ratio of 64:28:22:1. The greatest amount of amorphous inorganic and organic phases were found in the ≦4 œm fraction. A considerable part of the detrital material originates from soils formed on various igneous, metamorphic and sedimentary rocks, transported to the Labe by other rivers or directly by erosion in the immediate vicinity of the Labe river. Kluwer Academic Publishers, 1992 GeoJournal Kluwer Academic Publishers 27/4(1992-08-01), 371-378 0343-2521 27:4<371 1992 27 10708 https://doi.org/10.1007/BF00185100 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00185100 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Borovec Z. Department of Petrology, Charles University, Albertov 6, CS-12843, Praha 2, Czechoslovakia aut NATIONALLICENCE 773 0- GeoJournal Kluwer Academic Publishers 27/4(1992-08-01), 371-378 0343-2521 27:4<371 1992 27 10708 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer