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The influence of litho- and pedogenic processes on Luvisols formation of selected area of Vistula Glaciation

Jaworska H., Dąbkowska-Naskręt H., Kobierski M.

Geological Quarterly

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2014

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Vol. 58, No. 4

685--694

EN

The objective of the study was to determine the effect of litho- and pedogenic processes on soils of the selected area of Vistula Glaciation, based on profile distribution of unweathered components such as titanium, zirconium and silica in relation to their morphology, mineralogy, micromorphology and physicochemical properties. The predominant type of soilin the study area are Luvisols. Analysis of texture allowed to classify the investigated soils to sandy silts with loamy material as their subsoil. In the bulk soil silica dominates and its content was in the range 71.4 to 88.6%. The content of TiO2 within the profiles is fairy similar, without clear patterns in the profile distribution. The total content of zirconium in the samples was in range of 95.13 to 212.15 mg x kg-1. In the profile distribution of zirconium higher content of Zr was observed in the upper horizons compared to the top layerin all of theanalysed profiles, indicating different origin of soil material. Statistical analysis showed positive correla- tion between the total content of zirconium and the content of fraction 0 0.05-0.002 mm (correlation coefficient value: 0.692384; significance level - p < 0.05) and negative correlation between zirconium and clay content (correlation coefficient: -0.668157; p < 0.05). The lithologic discontinu i ty within profiles of the investigated soils has been additionally has proved by X-ray analysis of the clay fraction. The micromorphological analysis confirmed the complex genesis of the studied soils. The results of the study clearly showed an overall inhomogeneity and stratification of the soils. Studied Luvisols did not form as weath- ering product of homogeneous bedrock. Changes in granulometric and chemlcal composition within soil profiles are the consequence of translocation of clay fraction during lessivage as well as lithologic discontinul ty of the solum.

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Grain-size characteristics of deposits derived from different glacigenic environments of the Schirmacher Oasis, East Antarctica

Srivastava Ashok K., Ingle Pravin S., Lunge Harihar S., Khare Neloy

Geologos

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2012

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Vol. 18, No. 4

251--266

EN

Sediment samples have been collected from the Schirmacher Oasis and adjoining area in East Antarctica; these areas consist of polar ice, ice-free area, lakes and the coastal shelf area. The 37 samples have been analysed for their grain-size parameters and statistical relationships. The oasis is characterised by ongoing glacial processes, including deposition and erosion of the sediments by ice, meltwater and winds, thus influencing the sediments in various ways. Basic statistical grain-size parameters like graphic mean, standard deviation, skewness and kurtosis have been calculated for the four units. The sediments of all areas are almost all poorly to very poorly sorted, fine-skewed to near-symmetrical and platykurtic to leptokurtic in nature. Bivariate plots between the grain-size parameters have been interpreted. They do, apart from a few exceptions, not show any trend suggesting relationships between the sediments of the four landscape types. Both t- and F-tests have been applied on the samples, and the phi values and grain-size parameters have been analysed; these show that the group variances of the samples are not significant, but that the phi-values are significant.

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Wiek utworów glacjalnych nad dolną Kamienną według analizy geomorfologiczno-litostratygraficznej, datowania metodą TL oraz analizy składu petrograficznego

Pożaryski W., Maruszczak H., Lindner L.

Przegląd Geologiczny

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2002

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Vol. 50, nr 1

87-90

PL

Dla osadów reprezentujących jeden cykl glacjalny nad dolną Kamienną uzyskano datowania metodą TL w przedziale od 274 do 721 ka. Wyniki analizy petrograficznej gliny zwałowej w obrębie tego cyklu są także wieloznaczne, ze wskazaniem na zlodowacenie warciańskie lub jedno ze zlodowaceń południowopolskich. Rezultaty uzyskane tymi dwoma metodami nie dają więc podstawy do kwestionowania pozycji wiekowej badanych osadów, określonej na zlodowacenie odrzańskie na podstawie analizy geomorfologiczno-litostratygraficznej.

EN

The sediments of a single glacial cycle on the lower Kamienna River were TL dated at 274 to 721 ka. The results of petrographic analysis of tills assigned to this cycle are also ambiguous indicating the Wartanian Glaciation or one of the South Polish Glaciations. The results derived from these two methods do not put in question the age of the examined sediments that have so far been ascribed to the Odranian Glaciation based on geomorphologic and lithostratigraphic analysis.

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Petrografia osadów lodowcowych w południowej Wielkopolsce (Włoszakowice)

Górska M.

Przegląd Geologiczny

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2000

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Vol. 48, nr 4

364-367

PL

Analiza składu petrograficznego dwóch facji litologicznych: gliny bazalnej typu lodgement oraz glacjotektonitów, pozwoliła na stwierdzenie dwóch różnych kierunków nasunięć lądolodu w południowej części Niziny Wielkopolskiej. Czerwonobrązowa glina ma stosunkowo dużo eratyków przewodnich z Wysp Alandzkich, którym towarzyszą liczne żwiry wapienne, pochodzące ze wschodniej części depresji Bałtyku oraz dewońskie dolomity o podobnej proweniencji. Spektrum petrograficzne reprezentuje więc ENE kierunek transgresji lądolodu.Lądolód zlodowacenia vistulian docierał do linii Włoszakowic z kierunku NNE, który został zapisany poprzez stosunkowo liczne eratyki przewodnie z Dalarny i inne eratyki wskaźnikowe ze strefy Svekokarelidow w południowej Szwecji. Więcej jest wapieni paleozoicznych i piaskowców, które mają swoje wychodnie w środkowym Bałtyku. Główny kierunek transgresji lądolodu z północy znajduje potwierdzenie w niewielkiej liczbie dolomitów dewońskich.

EN

The petrographical analyses in gravel and stone fractions of basal till point to two different ice-advance directions to the southern flanks of the Wielkopolska Lowland. The red-brown till consists of relatively many indicator erratics from Aland Islands, which are accompanied by many calcarous pebbles from the eastern part of the Baltic depression as well by Devonian dolomites. The petrographical spectrum stands for ENE advance. The next, Vistulian glacier advanced to Włoszakowice from NNE direction, which is recorded by relatively numerous indicator erratics from Dalarna and many so called statistical erratics from the Svecokarelian province in south Sweden. There are again more Palaeozoic limestones and sandstones, which have their outcrops in the middle Baltic Sea. The eastern direction is weakened by scarse number of Devonian dolomites.