0438915 - GFÚ 2016 RIV NL eng J - Journal Article
Kadlec, Jaroslav - Kocurek, G. - Mohrig, D. - Shinde, D. P. - Murari, M. K. - Varma, V. - Stehlík, F. - Beneš, V. - Singhvi, A. K.
Response of fluvial, aeolian, and lacustrine systems to late Pleistocene to Holocene climate change, Lower Moravian Basin, Czech Republic.
Geomorphology. Roč. 232, 1 March (2015), s. 193-208. ISSN 0169-555X. E-ISSN 1872-695X
Institutional support: RVO:67985530
Keywords : Quaternary * Czech Republic * Fluvio-aeolian
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 2.813, year: 2015 ; AIS: 0.954, rok: 2015
DOI: https://doi.org/10.1016/j.geomorph.2014.12.030

Late Pleistocene to Holocene Morava River valley-fill of the eastern Czech Republic reflects the geomorphic evolution of the valley as forced by climate change. Valley-fill stratigraphy was studied through measured sections, optically stimulated luminescence (OSL) and radiocarbon dating, ground-penetrating radar surveys of relict sand dunes, archived drill-hole data, and a comparison of elevations and ages of stratigraphic units. Fluvial systems evolved from meandering with floodplains to braided during MIS 3. Braided fluvio-aeolian systems dominated through MIS 2 and the Last Glacial Maximum (LGM). Valley aggradation occurred during arid glacial times of a low water-to-sediment discharge ratio. Most valley-fill was removed at 13 ka with incision by a large-bend meandering river with an estimated bankful paleodischarge 3 x larger than the modern Morava River. The Holocene Morava River has varied from meandering to anabranching with low rates of floodplain aggradation. The Bzenec sand body, up to 36 m thick, represents an erosional remnant bypassed during late Pleistocene incision and consists of interpreted lacustrine turbidites overlain by braided stream and aeolian dune strata.
Permanent Link: http://hdl.handle.net/11104/0242268