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Skład chemiczny wód porowych górnoplejstoceńskiej sekwencji lessowo-glebowej w Zaprężynie (SW Polska)

Skurzyński J., Modelska M., Raczyk J., Staśko S., Jary Z.

Przegląd Geologiczny

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2017

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Vol. 65, nr 11/2

1383--1387

EN

The article presents the preliminary results of pore-water chemistry studies of the entire Upper Pleistocene loess-paleosol sequence in Zaprężyn (SW Poland). The pore-water chemical composition provides information about behaviour of the elements in the loess profile during the rock-water interactions. The applied method of ex situ water extraction allows only obtaining slightly bound water, which determines physicochemical parameters of the ground. The considerable variability of the values of pH, EC and concentrations of Al3+, Fe3+, Mn2+, Mg2+, Ca2+, Na+, K+, SO42-, Cl- ions and SiO2 was caused by stratification of sediments. The effect of reduced-permeability barrier on the increased concentrations of some ions was also found.

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Late Pleistocene loess-paleosol and vegetation successions at tarnawce (san river valley, carpathian foothills, Poland)

Komar M., Łanczont M.

Studia Quaternaria

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2002

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Vol. 19

27--36

EN

The Tarnawce 1 profile, which occurs in the marginal eastern part of the Polish Western 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 pleni-Vistulian loesses with an interstadial paleosol. The pollen spectra of 22 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 interstadial soils.

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Late Pleistocene vegetational and soil evolution at the Kiev loess plain as recorded in the Stari Bezradychysection, Ukraine

Gerasimenko N.

Studia Quaternaria

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2000

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Vol. 17

19-28

EN

Pollen and paleopedological studies have been carried out in parallel for the Stari Bezradychy sequence of the Upper Pleistocene age. The paleoenvironmental information derived from both sets of data is in general well correlated. The section presents a rather complete sequence of the last interglacial-glacial cycle. It includes eight units of the Ukrainian Stratigraphical Framework of the Pleistocene. Interglacial climatic optimum is registered by pollen succession of the Mikulino (Eemian) type in the climax forest paleosols of Pryluky-Kaydaky pedocomplex at the base of the sequence, above the Dnieper Glacial deposits. The coldest and most continental environment is recorded in the youngest loess. The soils of Upper Pryluky, Vytachiv and Dofinivka units are correlated with the Early Glacial and four Pleniglacial interstadials. Multiple environmental variations during the Upper Pleistocene recorded in the Stari Bezradychy sequence are important for study of global climatic changes and interregional correlation. Tentative correlation with marine isotopic stages is proposed.