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Wyszukujesz frazę "Baltic coast" wg kryterium: Temat


Wyświetlanie 1-8 z 8
Tytuł:
Stratigraphic position and sedimentary environment of Late Pleistocene deposits along the cliffed coast of the middle part of the Polish Baltic coast
Autorzy:
Krzyszkowski, D.
Koszka-Maroń, D.
Powiązania:
https://bibliotekanauki.pl/articles/2059371.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
cliff
geological structure
stratigraphy
petrography
Baltic coast
Opis:
The study was carried out in the wall of a cliff that formed as a result of erosional cutting in the western foreland of a moraine landform from the Pomeranian and Gardno phases (Upper Plenivistulian, Rowy-Ustka clifs; northern Poland). Individual lithostratigraphic units have been documented: glaciofluvial delta deposlts, Poddąbie Till, lacustrine-glacial Wytowno Formation (consisting of three facies: deltaic, lower diamicton, and upper diamicton), lacustrine deposits of the Orzechowo Formation with a thick peat layer, and aeolian series at the cliff crest. The Wytowno Formation deposits include the following lithologies: medium-grained sands, fine-grained sands, muddy sands, muds, silty clays, clays, varved clays, fine-grained multi-fraction deposits, and tills (Dębina Till). Very high inclination of the strata is the result of glaciodynamic deformation. The deposits were accumulated in a proglacial lake. They are characterized by mud and clay as well as sand and sand-muddy lithofacies. The vastness of the water body is evidenced by a considerable size of the delta, and by massive structures of the clay layers.
Źródło:
Geological Quarterly; 2018, 62, 1; 48--68
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Postglacial to Holocene sedimentation history and palaeogeographical development of a barrier spit (Pudagla lowland, Usedom island, SW Baltic coast)
Autorzy:
Hoffmann, G.
Powiązania:
https://bibliotekanauki.pl/articles/1187371.pdf
Data publikacji:
2004
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
sea level
barrier spit
palaeogeography
Holocene
Usedom
Baltic coast
Opis:
Pudagla lowland is a Holocene barrier spit on the SW Baltic coast. Framed and underlain by Pleistocene deposits, the depression is filled up with up to 20 m of Late Glacial to Holocene sediments. 63 cores were collected using a vibrocore technique. Samples were analysed in terms of granulometry, species associations (molluscs, ostracods). Organic sediments (peat) were used for radiocarbon dating. In total 6 new 14C-data are presented. The sediment sequence starts with a Late Glacial till, overlain by glaciofluvial sand. A lake developed during the Late Preboreal/Early Boreal with a water level of -8 m mean sea level (m.s.l.) with sand the predominant sediment. Minor lakes existed during the Boreal. At around 6500 BP the Littorina transgression reached the study area. Mud and fine to medium sand were deposited forming a barrier spit. At around 1000 BP, the entire Pudagla lowland became terrestrial with peat as the most common surface sediment. Palaeogeographical development is demonstrated by nine evolutionary stages. The assumption of Kliewe, Janke (1982) that the transgression onset varies regionally at the coast of the southern Baltic Sea can be proven by comparison with other areas which have been subject to prior investigations.
Źródło:
Polish Geological Institute Special Papers; 2004, 11; 83-90
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of the day by day beach monitoring in shore transformation
Autorzy:
Wodzinowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/1187368.pdf
Data publikacji:
2004
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
orthogonal photograms
shore zone
Polish Baltic Sea coast
Opis:
The new method of a detailed morphodynamic registration of sandy beaches has been presented. The digital oriented photograms have been taken from a stabilised point at least once a day. Occasionally also more often, for example every hour during a storm cycle. The analyses of the photograms are performed in digital mode using special computer software. This digital beach monitoring of the Polish Baltic coast was initiated in summer 2002. The test fields in Polanka Redłowska within Gdynia and Chłapowo near Władysławowo were selected. The beach areas of the length of about 200 m along the shore were registered there. Selected examples of short-term changes of the beach relief were presented. A range of spatiotemporal transformations related to different periods (hours, days, months etc.) was demonstrated.
Źródło:
Polish Geological Institute Special Papers; 2004, 11; 77-82
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A multidisciplinary study on the palaeoenvironmental history of the Resko Przymorskie Lake spit during the Late Glacial and Holocene (the southern Baltic coast, NW Poland)
Autorzy:
Sydor, P.
Krzymińska, J.
Rzodkiewicz, M.
Kotrys, B.
Powiązania:
https://bibliotekanauki.pl/articles/2059656.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
sedimentology
pollen
diatom
ostracods
molluscs
palaeogeography
Baltic Sea coast
Opis:
The paper presents the results of sedimentological and biostratigraphical analyses from the Resko Przymorskie Lake spit (NW Poland), supported by radiocarbon datings. The study has aimed to recognize the geological structure of the spit and its base and to recognize the palaeoenivronmental changes. Nine sedimentary series composing the Resko Przymorskie Lake spit have been distinguished (I–IX). The oldest sediments are the Vistulian Glaciation till (series I) and fluvioglacial sand and gravel (series II). In the Early Holocene, in the study area there was a river valley (series III) followed by a shallow water basin (series IV), which was replaced by a peat bog (series V). In the Atlantic (7.4 ka cal BP), the water level rose (Littorina transgression) and accumulation of lagoonal sediments started (series VI). Biostratigraphic analysis of deposits in series VI indicates a marine influence. In the Atlantic and Subboreal, the spit moved southwards and fine sand (series VII) was deposited on lagoonal gyttja and silt (series VI). In the western part of the study area, peat accumulated (series VIII), dated at 6.7 ka cal BP (Late Atlantic). The youngest series IX is composed of aeolian fine sand in white dunes that formed in the last 400 years.
Źródło:
Geological Quarterly; 2015, 59, 3; 531--550
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relief of the offshore sea bottom at Karwia-Chałupy, Polish Baltic coast
Autorzy:
Gajewski, L.
Gajewski, Ł.
Rudowski, S.
Stachowiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/1187372.pdf
Data publikacji:
2004
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
sea bottom relief
offshore
hydroacoustic methods
Polish Baltic Sea coast
Opis:
Morphology of sea bottom of the Władysławowo area, from Karwia to Chałupy, has been studied based on the detailed digital bathymetric map prepared in a scale of 1:25 000 with isobaths every 0.25 m. A significant differentiation of the bottom relief has been observed, with the level changes up to 1-3 metres, mostly connected with the occurrence of specific systems of ridges and runnels. They are probably partly relict forms (fluvial and/or coastal?), changed to certain degree during the rapid stage of the Litorina transgression, and in partly forms created by the recent waves. Several types of the sea bottom surface, differing in pattern of morphological forms, have been recognised within inshore, near shore, and open sea (above 16 m depths) areas. The full knowledge of the origin and development of these relief forms requires further specialised research, currently carried out. Nonetheless, the already obtained picture of the sea bottom relief indicates an intensified abrasion of the offshore sea bottom, and an intensive, irreversible sweeping out of the sediments from the shore to the open sea, most probably by rip currents, at a distance up to several kilometres from the shore. It is in accordance with the results of a former large-scale (1:500) study of the sea bottom at the test field at Chłapowo, performed with the use of an integrated system of non-invasive and direct methods.
Źródło:
Polish Geological Institute Special Papers; 2004, 11; 91-94
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ingresje i ascenzje wód słonych na Pobrzeżu Słowińskim
Ascension and ingression of saline waters of the Pobrzeże Słowińskie Region
Autorzy:
Krawiec, A.
Powiązania:
https://bibliotekanauki.pl/articles/2075392.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
ingresja i ascenzja
analiza izotopowa
geneza wód podziemnych
wiek wód podziemnych
wybrzeże Bałtyku
ascension and ingression process
isotope analysis
groundwaters genesis and ages
Baltic coast
Opis:
The paper presents comprehensive results of the hydrogeochemical and isotope analysis of waters in terms of their genesis and “ages”. Mostly chloride anomalies were found on the Polish Baltic coast. The processes of ascension and ingression of saline and brackish waters are the main reasons for their development. The water exchange rate was determined in each aquifer systems within the study area the results of isotope analysis, the concentrations of 4He and 3H. A significant contribution of infiltrating waters in cold climate is apparent in samples taken from: Ustka, Jarosławiec and Dąbki, for which NGT values range from 4.3 to 5.2°C. Waters with this genesis are found mainly in deep Pleistocene aquifers and Cretaceous roof layers. Changes in the chemical composition of waters in this area are strongly affected by human activity consisting in excessive exploitation of aquifers (mainly in the 1970s and 1980s). The process of saline water penetration into exploited aquifers was most extensive at that time. At present, it has been significantly inhibited as a result of reduced water extraction at the water intakes in this area. New water intakes are located at a considerable distance from the areas threatened with ingression or ascension of brine and saline water.
Źródło:
Przegląd Geologiczny; 2015, 63, 10/1; 867--872
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The development of unconsolidated sedimentary coastal cliffs (Pobrzeże Kaszubskie, Northern Poland)
Autorzy:
Uścinowicz, G.
Jurys, L.
Szarafin, T.
Powiązania:
https://bibliotekanauki.pl/articles/2060378.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
cliff coast
landslides
soft sediments
Southern Baltic
Opis:
In the course of fieldwork based on geological and landslide mapping and spatial analyses of map information at least 2 types of landslides were identified. Type I: simple landslides developed in homogeneous and undisturbed rocks, for instance – loams, clays and sands. This type of landslide includes many examples developed mainly on the stretch (segment of the studied area) approximately between 132.25 and 133.50 km and 128.50 and 129.50 km of the Polish coastline. Type II: complex landslides in which the movement and displacement of rock masses occurs under complex geological and hydrogeological conditions. The complex factors are determined by phenomena such as glaciotectonics, discontinuities of rock layers and thrust zones; the slip surface occurs at considerable depths, and sometimes several slip surfaces can be distinguished. These landslide types are located in the vicinity of Jastrzębia Góra and Rozewie, near km 134 and 131.5. Prediction of the formation of this landslide types is difficult. Even if long-term observations are available, the mass movement, variable over time, is difficult to interpret. It is clear that the changes are continuous, but occur with varying intensity. Proper recognition of the types of mass movement is crucial to establishing the appropriate methods to prevent their development.
Źródło:
Geological Quarterly; 2017, 61, 2; 491--501
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Paleozoic rocks structure versus Cenozoic cuesta relief along the Baltic Shield–East European Platform transect
Autorzy:
Tuuling, I.
Powiązania:
https://bibliotekanauki.pl/articles/2060390.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Baltic Homocline
intracratonic forced folds
Estonia
Swedish east coast
Cenozoic cuesta relief
Baltic Klint
Opis:
Based on structural maps, the bedrock structure on the southern slope of the Baltic Shield is analysed. Gently southerly dipping (0.1–0.2°) Paleozoic layers from Estonia to the Swedish east coast form the Baltic Homocline (BH). Numerous monoclinal folds, forced by basement faulting, induce slight variations in bedrock attitude across the BH. Studies on faults exposed in Southern Finland suggest that many monoclinal folds inducing basement faults within the BH are of Precambrian origin and have been active in pulses. The present monoclines were shaped by the Caledonian Orogeny. Submeridional tectonic hinge-lines induce minor regional-scale changes in the structural setting and control trends/styles of the forced folds. From the west, the BH bounds with the Baltic–Bothnian mobile zone that has been intermittently active since Mesoproterozoic times. The evolving Baltic Syneclise in the Silurian rearranged the structural setting typical for the Ordovician Baltic Basin. The Cenozoic uplift of Scandinavia created a SE-to-E-dipping bedrock sequence around the Gotland–Öland area. As the latter area had a different attitude than the BH, two Cenozoic cuesta-sets started to evolve around the northern Baltic Proper. They both had an outlet to the N–S-flowing Eridanos River around the Gotska Sandön area, creating thus two independent sections of the Baltic Klint.
Źródło:
Geological Quarterly; 2017, 61, 2; 396--412
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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