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REFERENCES Angiel P., 2003, Cechy teksturalne osadów sandrów lodowców Fláajökull i Falljökull (SE Islandia) oraz sandru Wdy i ich znaczenie w rekonstrukcji środowisk sedymentacji [Texture characteristics of sediments of the Fláajökull and Falljökull glaciers sandurs (SE Iceland) and of the Wda River sandur and their importance for the reconstruction of sedi mentation environments; in Polish], master’s thesis, Faculty of Geography and Regional Studies, Warsaw University. Folk R. L., Ward W., 1957, Brazos River bar: A study in the significance of grain size

: an overview. Geologos 21, 1-29. Pisarska-Jamroży, M. & Zieliński, T., 2011. Genesis of a till/sand breccia (Pleistocene, Noteć Valley near Atanazyn, central Poland). Sedimentary Geology 236, 109-116. Pisarska-Jamroży, M. & Zieliński, T., 2014. Pleistocene sandur rhythms, cycles and megacycles: Interpretation of depositional scenarios and palaeoenvironmental conditions. Boreas 43, 330-348. Pisarska-Jamroży, M., van Loon, A.J., Woronko, B. & Sternal, B., 2015a. Heavy-mineral analysis as a tool to trace the source areas of sediments in an ice-marginal valley, with an

) dating of glaciofluvial sediments. Boreas 40, 598-615. Maas, G., 1904. Zur Entwicklungsgeschichte des sog. Thorn-Eberswalde Haupttales. Zeitschrift der Deutschen Geologischen Gesellschaft 56, 40-49. Mange, M.A. & Maurer, H.F.W., 1992. Heavy minerals in colour. Chapman and Hall, London, 147 pp. Maizels, J., 1993. Lithofacies variations within sandur deposits: the role of runoff regime, flow dynamics and sediment supply characteristic. Sedimentary Geology 85, 299-325. Maizels, J.K., 1995. Sediments and landforms of modern proglacial terrestrial environments. [In

, deposits, ecology and management. International Association of Sedimentologists, Special Publication 36, 11-50. Bridge, J. S., Collier, R. & Alexander, J., 1998. Large-scale structure of Calamus deposits (Nebraska, USA) revealed using ground-penetrating radar. Sedimentology 45, 977-986. Bristow, C. S., 1993. Sedimentary structures exposed in bar tops in the Brahmaputra River, Bangladesh. [In] Best, J. L. & Bristow, C. S. (Eds), Braided rivers. Geological Society, Special Publication 75, 277-289. Church, M., 1972. Baffin Island sandurs: a study of Arctic fluvial

; in Polish], pp. 139–146. Angiel P., 2006, Variability of textural characteristics of sandur deposits of Fláajökull and Falljökull (SE Iceland), Miscellanea Geographica 12, pp. 111–117. Battke Z., Marsz A., Pudełko R., 2001, The processes of deglaciation in the region of SSI no.8 and their climatic and hydrological conditions [in Polish], Problemy Klimatologii Polarnej 11, pp. 121–135. Beskow G., 1935, Tjälbildningen och tjällyftningen međ sárskild hänsyn till vägar och järnvägar [Soil freezing and frost heaving with special application to roads and railroads

. Geometrical properties of sand waves - A discussion. In. American Society of Civil Engineers. Proceedings. Journal of Hydraulics Division, 91, HY3, 367-374. Olsen, H. & Andreasen, F., 1995. Sedimentology and ground-penetrating radar characteristics of Pleistocene sandur deposits. Sedimentary Geology 99, 1-15. Paola, C., Wiele, S. M. & Reinhart, M. A., 1989. Upper-regime parallel lamination as the result of turbulent sediment transport and low-amplitude bed forms. Sedimentology 36, 47-59. Paterson, J. T. & Cheel, R. J., 1997. The depositional history of the Bloomington

significant features and some comments on gravelly mass-flow deposits. [In:] E. H. Koster & R. J. Steel (Eds): Sedimentology of gravel and conglomerates. Canadian Society of Petroleum Geologists Memoir 10, 1-31. Nemec, W., 1990. Aspects of sediment movement on steep delta slope. [In:] A. Colella & D. B. Prior (Eds): Coarse-grained deltas. International Association of Sedimentologists Special Publication 10, 29-73. Pisarska-Jamroży, M., 2006. Transitional deposits between end moraine and sandur plain in the Pomeranian glacimarginal zone of NW Poland: a missing component

Glacier ice structures influence on moraines developement (Hørbye glacier, Central Spitsbergen)

Geomorphological and basic sedimentological investigation of controlled moraine system was carried out at the ice surface and within the moraine complex zone of the Hørbye glacier (Central Spitsbergen). The Hørbye glacier creates controlled moraine chains regarding transversal fractures and longitudinal foliation. The forms parallel to the ice flow direction are represented by medial moraines, whereas transversal ones by thrustmoraines. Both arrangements are clearly visible. However, thrust and shear planes are more effective in creating forms, both on the ice surface and in the moraine complex. The longitudinal landforms are less distinct, moreover they are coarser-grained and worse rounded, in contrast to the material from shear and thrust plains which is finer and better rounded. The study area can be divided into three subzones: clean ice surface, debris covered ice fractures and moraine complex. The outer and inner sandur plain were not taken under consideration. It is suggested that present arrangement of both thrust or shear plains and longitudinal foliation controls formation of foreland relief. This hypothesis has a particular sense in understanding construction of modern sedimentary basins as well as the mechanism of terminoglacial relief formation with regend to ice structure.

Abstract

At present, concentrations of pharmaceuticals in surface and ground waters are low; however, even low concentrations of certain substances may prove very harmful. One of such pharmaceutical drugs is diclofenac, a popular non-steroidal anti-inflammatory drug (NSAID). For this reason, it is important to determine its mobility in groundwater and to estimate parameters of migration. Authors conducted column tests for two porous media: an artificial one, consisting of glass granules, and a natural one, i.e., sandur sand obtained from a site north of the city of Poznań (Poland). During the test, impulse breakthrough curves of chloride ions and diclofenac were recorded. The results were used to identify a specific sorption model and to determine values of migration parameters. Solutions of the inverse problem using optimisation methods and of equations of mathematical migration models were carried out in a MATLAB environment. Based on test results, the mobility of diclofenac is shown to be very high and comparable to that of chloride ions. The tests also revealed a slight and irreversible sorption of diclofenac on grains of both porous media.

Chronology of the Last Deglaciation in the Southeastern Baltic Region on the Basis of Recent OSL Dates

The study of the deglaciation chronology in the south-eastern Baltic Region belonging to the outer zone of the last Pleistocene glaciation has a long history. The Finnish investigator H. Hausen (1913) who worked in the north-western portion of the East-European Plain at the beginning of the 20th century was the first to attempt a reconstruction of the course of glacial retreat during the last glaciation. At that time investigators had no physical dating methods and the time scale based on varvometric method, introduced by the Swedish geologist G. de Geer (1912) who divided the deglaciation history of Scandinavia into Daniglacial, Gotiglacial and Finiglacial, each of which had different palaeoglaciological conditions. During last decades different dating methods, including 14C, ESR, luminescence methods and 10Be techniques have been used, but they could not help essentially improve the existing stratigraphical charts and many problems of topical interest in the history of deglaciation have not been solved yet. During last years the first two authors have studied the suitability of OSL method for the geochronological purposes, paying the most attention to the waterlaid sediments. In the first step they have found the most promising genetical varieties of glaciofluvial sediments (glaciofluvial deltas and sandurs) and in this paper they widened the study area to all three Baltic states with close cooperation with Latvian and Lithuanian colleagues. The obtained results demonstrated, that not all mineral grains in the uppermost glaciofluvial and glaciolacustrine sediments were fully bleached during the last deglaciation. Probably the older sediments also influenced to the luminescence results. It means, that stratigraphic conclusions based on single dates or their small sets are inadmissible and in each case luminiscence dating requires a verification using other methods.