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    Wyświetlanie 1-7 z 7
    Tytuł:
    Cechy geochemiczne osadów stokowych i fluwialnych na północno - zachodnim Mazowszu
    Geochemical features of slope and fluvial sediments from NW Mazovia
    Autorzy:
    Szwarczewski, P.
    Smolska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2084277.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
    Tematy:
    osady fluwialne
    osady stokowe
    cechy geochemiczne
    Mazowsze Polnocno-Zachodnie
    osadnictwo
    aluwia
    pierwiastki sladowe
    Opis:
    Fluvial and slope deposits were investigated in the NW part of Masovia region. Their deposition was conditioned by anthropopression. There were recognised lithological features and analysed in vertical profiles such characteristics as: grain size, organic matter and selected elements (eg. Zn, Pb, Cu, Cd, Ni, P). Selected samples with organic matter were dated using the radiocarbon method. Age of sediments and their sedimentological and geochemical characteristics let to destinguish the series of deposits correlated with such periods of human activity as: Wielbark and Przeworsk cultures, the Middle Ages, the modern and industrial periods with last 100 years heavily affected by human activity. A very characteristic feature of the study area is a general very small content of analysed elements - close or very near to values of geochemical bacground but it is varied in vertical profiles of both slope sediments and fluvial ones. In the area of Brudzeń Duży the highest concentrations of analysed metals were recorded in the sediments accumulated during the Middle Ages, especially early phases of this period, what corresponds to the economic activity of the Slavs in this area (the two strongholds in Brudzeń Duży and Parzeń). Thereafter it was an agricultural region. In the area of Borowiczki the maximum concentrations occur at the land surface and it is correlated with the human activity of the last 40 years - that is, since the creation and operation of petrochemical plant in Płock. The carried studies indicated that trace elements in sediments, even occuring in small concentrations may be helpful in separating the layers by the age of deposition and in determining the rate of sedimentation at footslopes or in valley bottoms (overbank during the floods).
    Źródło:
    Prace i Studia Geograficzne; 2013, 51; 105-123
    0208-4589
    Pojawia się w:
    Prace i Studia Geograficzne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Z genezy stożków kemowych
    On the origin of came cones
    Autorzy:
    Smolska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2085676.pdf
    Data publikacji:
    1988
    Wydawca:
    Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
    Tematy:
    stozki kemowe
    geneza
    Wysoczyzna Bialostocka
    Wysoczyzna Wysokomazowiecka
    cechy morfologiczne
    Opis:
    In North-East Poland, in the Riss Glaciation zone there occur hills of a characteristic conical shape. They have asymmetric slopes: one is usually short and steep, the opposite is longer and softer. They are connected with depressions left by blocks of dead ice and usually situated on the border of such basins. They are built of fluvioglacial deposits, sometimes with added ablation clays. They are formed through the accumulation of deposits into cones in large fissures of ice slopes. Their genesis is shown by their inner structure. All the layers originate in the culmination of the cone and thin out in accordance with the longer slope; the measurements of their dip direction indicate a fanshaped disposition of the directions of transport. By way of example two such forms have been described; they are situated in the western part of the Białystok Upland and in the North-East part of the Wysokie Mazowieckie Upland. Because of their morphometric and structural features they are called came cones (R. F. Flint 1957, A. Karczewski 1971, A. Musiał, K. Straszewska, M. Ziembińska-Tworzydło 1982, A. Musiał 1983).
    Źródło:
    Prace i Studia Geograficzne; 1988, 09; 53-73
    0208-4589
    Pojawia się w:
    Prace i Studia Geograficzne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cechy morfologiczne i dynamika małych uedów (wąwozów) lessowego regionu Gabes
    Morphology and dynamics of small wadis (gullies) in the loess region of Gabes
    Autorzy:
    Dluzewski, M.
    Smolska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2084887.pdf
    Data publikacji:
    2006
    Wydawca:
    Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
    Opis:
    The article describes morphology and dynamics of 2 small wadis (gullies) in the vicinity of Gabes, tributaries of the Wadi Gabes, which cut a loess cover of sea-side region. Mapping in 1995 and 1998 was aimed to recognize contemporary gullying resulting from precipitation 807 mm with maximal 51 and 92 mm per day. Slope gradients and length of the thalweg as well as depth and width in cross sections were measured. The gullies are characterized by many knickpoints, but only few are up to 1 m. The changes in morphology of the gullies indicate slow retreat of the knickpoints (sporadicaly to 60 m) or their cutting and the incision along most of the gully length (5-10 cm locally more), as well as lateral erosion, particularly in lower parts of the gullies. The deposition occurred only locally and was very irregular. Changes in morphology of the gullies were very limited due to highly calcareous loessial and sandy-gravel bedrock. The length of the gullies increased due to the development of deep rills above heads of the gullies and their sinuosity in the lower part. The rate of gully heads advance is about 1,6 and 2,5m m per year.
    Źródło:
    Prace i Studia Geograficzne; 2006, 37; 125-137
    0208-4589
    Pojawia się w:
    Prace i Studia Geograficzne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cechy sedymentologiczne różnowiekowych osadów korytowych na przykładzie doliny górnej Czarnej Hańczy (Pojezierze Suwalskie)
    Sedimentological features of various age river channel deposits on the example of the upper Czarna Hancza valley (Suwalskie Lakeland)
    Autorzy:
    Ostrowska, A
    Oswiecimska-Piasko, Z.
    Smolska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2084993.pdf
    Data publikacji:
    2003
    Wydawca:
    Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
    Opis:
    The aim of the research carried out in the upper Czarna Hańcza valley was to explore the characteristics of channel deposits from various ages and to evaluate their significance in the process of drawing conclusions about the fluvial environment. The deposits of the contemporary Czarna Hańcza channel were analysed; the channel itself is tortuous, locally meandering, with small meanders (with the curve radius of 30 to 70 metres). The deposits of the river with large-magnitude meanders were identified using the example of the Potasznia palaeomeanders, with the curve radius of 500 metres. The deposits of the braided sandur river, providing material for both types of younger fluvial deposits, were revealed in the exposures in Potasznia and Sobolewo. An analysis of the deposits' grain size was conducted using the sieve method, and the texture indicator was determined using the Folk and Ward method (1957). To draw conclusions about the environmental dynamics and the manner of transporting deposits on the basis of sedimentological features, the relationship between the average grain diameter - Mz (on the ϕ scale) and standard variation d₁ (sorting) was used, as well as one between the grain diameter - Mz and the first centile of the grain size distribution – C, which, along with larger ones, account, respectively, for 50% and 1 % of the deposit mass (Passega 1956, Passega Byramjee 1964, Mycielska-Dowgiałło 1995). In the relationship between the average grain diameter - Mz and the standard deviation - σ₁ pattern I was better visible in all the examined deposits, in which the thicker deposits were more poorly sorted. According to Mycielska-Dowgiałło (1995), it is a characteristic feature of a dynamie channel environment. Younger series are characterised by lesser differences in the average grain diameter, accompanied by larger variations in the sediment sorting and, at the same time, a poorer degree of sorting (individual channel types represent the lines with a similar ten dency, Mz-σ₁ but having a smaller channel gradient). Pattern II could be discerned only in the current facies deposits (which until naw has not been identified in the bottom deposits of Polish rivers), in which thicker deposits are better sorted. This is channel lag deposits. Also, in the C-M diagram, most of the points representing the examined deposits can be found in field I, comprising deposits transported in traction in an environment characterised by a high dynamie activity. In the case of contemporary channel deposits, the dependence of the deposition conditions on the channel gradient could be easily visible.
    Źródło:
    Prace i Studia Geograficzne; 2003, 33; 59-70
    0208-4589
    Pojawia się w:
    Prace i Studia Geograficzne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cechy deluwiów na przykładzie osadów stokowych pagórka w okolicy Łopuchowa na Pojezierzu Suwalskim
    Sedimentological features of the colluvial deposits on the example of the slope cover deposits of the hillock in Lopuchowo area (Suwalskie Lakeland)
    Autorzy:
    Smolska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2084989.pdf
    Data publikacji:
    2003
    Wydawca:
    Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
    Opis:
    The aim of the study was the analysis of scructural and texcural features of the slope cover deposits in relation to the character of the substratum deposits. The slope of a small hillock formed of fluvioglacial deposits was chosen as representative of the last glaciation area. Structure of the near-surface parts of the hillock and the slope cover deposits were analysed based on five pies dug along the longitudinal profile. The grain size distribution was established using the sieve method. The granulometric indices were calculated according to the Folk and Ward (1957) formulae. The slope cover deposits are uniform and consist of sand of varied grain size, with share of fine and very fine grains. Thickness the slope cover is of up to 150 cm. At the floor two colluvial mineral series appear, of 30-40 cm thickness, with flow structures and laminated. The main mass of this cover consists of soil colluvia. Within the soil colluvia three humus horizons were distinguished. The lowermost fossil humic horizon, dated at 2740 ±70 BP, points to deposition of material at the slope base mainly as a result of anthropogenic denudation. The overlying humic horizon proved to be older (3160±90 BP), which points to stepwise erosion of successive older slope covers and their redeposition at the hillock base. The slope deposits are finer and worse sorced in comparison to their source deposits. Frequency curves for colluvia from wash are chracterised by higher number of distinguishable modes in comparison with the source material. Over the whole slope length of 75 m a slow sorting occurred. It resulted in the changed relationship becween the main grain diameter and the standard deviation, from type I, representing fluvioglacial deposits, into type II, comprising colluvial deposits. Cumulacive curves of colluvial deposits differ from those of fluvioglacial origin in a weaker separation of populacion corresponding to the kinds of transport and in a narrower inclination angle.
    Źródło:
    Prace i Studia Geograficzne; 2003, 33; 45-57
    0208-4589
    Pojawia się w:
    Prace i Studia Geograficzne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cechy sedymentologiczne osadów wodnolodowcowych w żwirowni Łubienica-Superunki (SE części Wysoczyzny Ciechanowskiej)
    Sedimentological characteristics of fluvioglacial deposits in the Łubienica-Superunki quarry (SE part of Ciechanowska Upland)
    Autorzy:
    Giriat, D.
    Smolska, E.
    Woźniak, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/294821.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    osady wodnolodowcowe
    sedymentacja sandrowa
    plejstocen
    Wysoczyzna Ciechanowska
    fluvioglacial deposits
    outwash sedimentation
    Pleistocene
    Ciechanowska Upland
    Opis:
    Praca zawiera charakterystykę sedymentologiczną osadów sandrowych występujących pod niewielkiej miąższości gliną lodowcową w południowo-wschodniej części Wysoczyzny Ciechanowskiej, w pobliżu strefy krawędziowej z doliną Narwi. W artykule przedstawiono opis sekwencji struktur sedymentacyjnych widocznych w żwirowni Łubienica-Superunki i próbę interpretacji warunków transportu i depozycji osadów wodnolodowcowych. Występują tu dwa kompleksy osadów, z których dolny był akumulowany w roztoce piaskodennej, a górny w roztoce o większej dynamice przepływów (ze znacznie większym udziałem żwirów) przed nasuwającym się czołem lądolodu.
    This paper presents the sedimentological characteristics of outwash sediments occurring under a glacial till of a small thickness, in the south-eastern part of the Ciechanowska Upland, near the edge of the Narew Valley. The article presents description of the sequence of sedimentation structures visible in the Łubienica-Superunki quarry. There are two complexes of fluvioglacial sediments. The bottom part visible in the studied outcrops were accumulated in sand-bed braided river whilst the upper part of sediments developed in sandy-gravel braided river of a greater flow dynamics (near front of the warta ice sheet margin).
    Źródło:
    Landform Analysis; 2017, 33; 25-36
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wybrane problemy geomorfologiczne Mazowsza
    Selected geomorphological problems of Mazovia
    Autorzy:
    Smolska, E.
    Giriat, D.
    Tsermegas, I.
    Szwarczewski, P.
    Zawadzka-Pawlewska, U.
    Błoński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/294378.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    cechy rzeźby
    zmiana naturalna
    zmiana antropogeniczna
    Kotlina Warszawska
    Wysoczyzna Ciechanowska
    dolina dolnej Narwi
    landforms features
    natural change
    anthropogenic change
    Warsaw Basin
    Ciechanowska upland
    Lower Narew Valley
    Opis:
    Celem artykułu jest zaprezentowanie charakterystycznych cech rzeźby wybranych obszarów Mazowsza ze szczególnym zwróceniem uwagi na jej uwarunkowania zarówno naturalne, jak i antropogeniczne. Przedstawiono holoceńskie zmiany w obrębie zbocza doliny Wisły na przykładzie Skarpy Ursynowskiej, zmiany w dnie doliny związane z osadnictwem olęderskim, wybrane aspekty budowy geologicznej i cechy rzeźby w okolicy Łubienicy na Wysoczyźnie Ciechanowskiej, morfologię zboczy i dna doliny dolnej Narwi w okolicy Łubienicy i Pułtuska oraz rekonstrukcję zmian środowiska przyrodniczego w okolicach Nasielska (od początku wczesnego średniowiecza po okres nowożytny).
    The main aim of the article is to present the landforms characteristics of the selected Mazovian areas with particular focus on its natural and anthropogenic conditions. This paper concerns the problems of: the Holocene changes within the Vistula River valley on the example of the the Ursynów Scarp development; the geomorphic changes in the bottom of the valley due to the Olęder settlements (the Kiełpińska Holm site), selected issues of geology and landscape evolution of the Ciechanowska Upland (The Lubienica-Superunki site), morphology of the slopes and of the Lower Narew Valley bottom near Łubienica and Pułtusk sites and the reconstruction of natural environment changes (from the early Middle Ages to the Early Modern Period) in the Nasielsk area.
    Źródło:
    Landform Analysis; 2017, 33; 3-16
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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