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Abstract

The Tarnawce I profile, which occurs in the marginal eastern part of the Polish Westem Carpathians, contains loesses representing three last glacial cycles. In this paper we report the results of pollen analysis of the Eemian-Early Glacial pedocomplex and of the Lower plcni-Visrulian loesses with an interstadiał paleosol. The pollen spectra of22 samples were determined. The pollen diagram was divided into 7 local pollen assemblage zones (L PAZ). Interglacial climatic optimum was recorded with the Eemian type of vegetation in the T-4 zone. The coldest conditions occurred during the accumulation of loess, which separates the interglacial and interstadiał soils.
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Authors and Affiliations

Maryna Komar
Maria Łanczont
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Abstract

Large exposure near the brick-field in Halie represents one of the most complete loess sequences in the Ukrainian Carpathian F orcland, which i I lustrates a progress of events covering a considerable part of the Middle Pleistocene and the whole Upper Pleistocene. The most important of these arc: the Luck soil corresponding to the soil from the Zbójno lnicrglacial in Polish profiles and Dornnitz Interglacial (1~0 stage 9) in West European profiles, bottom part of the Upper Pleistocene (Dnieper= Odranian = Saalian I) loesses, which arc extremely thick and stratigraphically divided into units of lower rank. and well developed soil complexes - Korshov and Horok hov. Investigations of the Korshov soil arc a basis to discuss at least two stages/phases ofpedogcncsis development during the last but one interglacial (Lublinian = Trcenian: 1~0 stage 7). The Horokhov paleosol is connected with the Ecmian Interglacial. The Dubno and Rovno soils occur within the poorly developed Vistulian loesses: the Rovno soil is a cultural layer.
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Authors and Affiliations

Andriy Bogutskiy
Maria Łanczont
Roman Racinowski
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Abstract

Samples for the study were collected from, known from the literature, outcrop profiles in Zarzecze, Radymno, Dybawka, Tarnawce and Pikulice-Nehrybka, situated at the Carpathian border, in the vicinity of the Przemyśl town, close to the San River valley (SE Poland). They represent the Vistulian loess-palaeosol sequences. Carbonates occur mainly in the loesses representing OIS 2 and 3. Pollen analysis, carried out for two profiles (Tarnawce, Radymno), throws light on palaeoecological conditions of loess cover formation and transformation.Isotopic analysis of authigenic carbonates was carried out on carbonate cemented bodies dispersed throughout the loess in forms of nodule, rhizolith and rhizocretion and on bioclasts, mainly snail shells, ostracod valves, and sparse globules (probably the internal shells of the naked snails).In the successions studied, the upper Vistulian loess deposited in environment with poor vegetation, contains rhizo- liths and rhizocretions mainly, while in the middle and lower Vistulian loess with well developed soils, gley horizons, and intercalations of subaqueous sediments, remains of snail shells and ostracod valves prevail. The two main forms of carbonates differ markedly in isotopic composition from one another. These differences seem to be more important than those between samples of one form of carbonates along particular sections. That is the result of numerous factors affecting the fractionation of carbon and, in particular, oxygen stable isotopes in the environment of precipitation of authigenic calcite. The isotopic composition of carbonates cementing sediments is controlled mainly by biominerali- zation of organic matter and local climatic parameters which were rather slightly differentiated during the formation of the studied sediments. The d13C values for bioclasts vary in a broader range than for calcitic cements. Usually the snail shell carbonate is more enriched with heavier carbon isotope than that from ostracod valves, resulting from the isotopic equilibrium with precipitation and with surface waters, respectively. Basing on our study we can conclude that fluctuations of isotope composition of authigenic carbonates make it hard to apply as a paleoclimatic indicator. However, the general trend of d18O variation in analysed carbonate fractions from leoss-palaeosol sequences displays some connections with climatic fluctuations.

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Authors and Affiliations

Bożena Łącka
Maria Łanczont
Maryna Komar
Teresa Madeyska
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Abstract

Yezupil is the first Middle Palaeolithic site discovered in upper part of the Dnister River valley. It is situated in a set of sediments composed of loess and fossil soils lying on alluvia. The results of geological and palaeopedological investigations are presented. They contain lithological and geochemical analyses (main components and trace elements), as well as micromorphological study. Palaeo- and petromagnetic record is presented too. Horohiv pedocomplex developed from the older, Wartanian loess. It is composed of luvisol originated during the Eemian Interglacial and chernozem soil - during the Early Vistulian interstadials. An subarctic brown Dubno soil dated to the Interplenivistulian (Middle Vistulian interstadials) separates two parts of the younger loess. Older assemblage of Middle Palaeolithic-Mousterian culture with Levalloisian technique was found in the E horizon of the luvisol and therefore it could be dated to the Eemian Interglacial. Younger Middle Palaeolithic-Micequian- type materials were situated in partially redeposited by solifluction, Early Vistulian chernozem. Scanty and uncharacteristic Upper Palaeolithic assemblage was found in interstadiał Dubno palaeosol
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Authors and Affiliations

Andriy Bogutskiy
Krzysztof J. Cyrek
Krystyna Konecka-Batley
Maria Łanczont
Teresa Madeyska

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