Reconstruction of a floodplain area over the last 40.000 years (Tisza river, Hungary) &#8211;	comparative case study of 14C and OSL methods
Authors: Kertész Titanilla Gréta , Buró Botond , Hubay Katalin , Sipos György , Molnár Mihály 
Published: March 2020

&lt;p&gt;&lt;strong&gt;Reconstruction of a floodplain area over the last 40.000 years (Tisza, Hungary)&lt;/strong&gt;&lt;/p&gt;&lt;p&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#8211; &lt;strong&gt;comparative case study of &lt;sup&gt;14&lt;/sup&gt;C and OSL methods &lt;/strong&gt;&lt;/p&gt;&lt;p&gt;Titanilla Gr&amp;#233;ta Kert&amp;#233;sz &lt;sup&gt;1 *&lt;/sup&gt; , Bur&amp;#243; Botond &lt;sup&gt;1&lt;/sup&gt; , Hubay Katalin &lt;sup&gt;1&lt;/sup&gt; , Sipos Gy&amp;#246;rgy &lt;sup&gt;2&lt;/sup&gt; , Moln&amp;#225;r Mih&amp;#225;ly &lt;sup&gt;1&lt;/sup&gt;&lt;/p&gt;&lt;p&gt;&lt;sup&gt;1&lt;/sup&gt;Isotope Climatology and Environmental Research Centre, Institute for Nuclear Research&amp;#160;&amp;#160;&amp;#160;&lt;/p&gt;&lt;p&gt;&amp;#160; H-4026, Bem t&amp;#233;r 18/c, Debrecen, Hungary&lt;/p&gt;&lt;p&gt;&lt;sup&gt;2&lt;/sup&gt;Szegedi University, Department of Physical Geography and Geoinformatics&lt;/p&gt;&lt;p&gt;&amp;#160; &amp;#160;H-6722, Egyetem str. 2-6, Szeged, Hungary&lt;/p&gt;&lt;p&gt;*Correspondence to: Titanilla Gr&amp;#233;ta Kert&amp;#233;sz; e-mail: kertesz.titanilla@atomki.mta.hu&lt;/p&gt;&lt;p&gt;&amp;#160; Keywords: Tisza, J&amp;#225;szs&amp;#225;g-basin, radiocarbon AMS dating, OSL&amp;#160;&amp;#160;&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Abstract&lt;/strong&gt;&lt;/p&gt;&lt;p&gt;&lt;sup&gt;14&lt;/sup&gt;C and OSL results of the 5 parallel, neighbouring cores (avg. depth 19 to 20 meters) were compared for a flood basin area (J&amp;#225;szs&amp;#225;g-basin). Four major sedimentary horizons were identified: meadow soil on the top; silty clay as the second horizon; a clay-silt section; and fine sand. &lt;sup&gt;14&lt;/sup&gt;C and OSL data were integrated into a consolidated age model by BACON software package. Formation of the recent top meadow soil (the upper 1-1.5m) falls in the Holocene. The mean conventional apparent radiocarbon age (940 &amp;#177; 420 years) was used for correction of the radiocarbon reservoir effect of soil bulk ages. The SubAtlantic + SubBoreal section show increasing apparent deposition rates (~11 cm / ka). The silty-clay strata represents the whole W&amp;#252;rm (Weichselian) Last Glacial to Upper Pleniglacial period (aDR ~6.3 cm/ka). The S&amp;#225;gv&amp;#225;r-Lascaux interstadial climate period section was apparently much slower (aDR decreases from ~4.2 to ~1.6 cm / ka). About 10 to 60 cms of sediment must be missing from this section. The next part of the section is a very long period (~10 kyrs) with a stable, much greater aDR than even at the end of the Holocene (~20-25 cm/ky). The clayey silt layers fall into the Late Pleistocene / Middle Pleniglacial period, a period of nearly 7.000 years of sedimentation resulting in deposits with a thickness of ~9 m, shown a very high apparent deposition rate (aDR) about ~0.12 m/ka.&lt;/p&gt;&lt;p&gt;The research was supported by the European Union and the State of Hungary, co-&amp;#64257;nanced by the European Regional Development Fund in the project of GINOP-2.3.2-15-2016-00009 &amp;#8216;ICER&amp;#8217;.&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;