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Wyświetlanie 1-2 z 2
Tytuł:
Utwory zastoiskowe doliny Iny między Witkowem a Tychowem koło Stargardu Szczecińskiego
Autorzy:
Seul, Cyprian
Bednarek, Roman
Powiązania:
https://bibliotekanauki.pl/articles/763166.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Ina Valley
glacilacustrine deposits
CPTU tests
grain-size
TL dating
Opis:
Ina valley between Suchań and Stargard Szczeciński was created during a land-ice melting of Pomorska Phase (Baltic Glaciation). The valley was formed in a glacial channel in place of buried (older) river valleys.During supplementary geological research for designed Świnoujście – Lwówek Wielkopolski gas pipeline a series of 20 test drills was carried out with a spacing of 50–100 m between them over the whole cross-section of Ina valley. The drills depth reached some 6 m at valley edge zone up to over 30 m at the central part of the valley. That allowed making detailed cross-section over the valley.Because at the central part of the valley a significant thickness of both organic and lacustrine deposits of silty loams was found, CPTU tests were performed. In addition, samples of underlying organic deposits as well as silty ones were taken. For the samples of those deposits standard geotechnical tests were carried out, and, additionally for specified 2 samples from depth 16 m and 19 m the TL dating was done.The results of the research confirm the presence of sediment reservoir filling the valley at late Pleistocene (silty loams) where standstill sedimentation process had been broken by turbulent sedimentation conditions. Gyttja, mud and peats (at roof) settled in holocene. Reservoir present in Ina valley was filled with mineral deposits and was also present at the time of so-called “Zastoisko Pyrzyckie” formation.
Dolina Iny w między Suchaniem a Stargardem Szczecińskim została utworzona w czasie wytapiania się lądolodu z fazy pomorskiej zlodowacenia bałtyckiego. Powstała w miejscu rynny glacjalnej, która utworzyła się w miejscu kopalnych dolin rzecznych.Podczas uzupełniających badań geologicznych związanych z projektem nitki gazociągu Świnoujście – Lwówek Wielkopolski wykonano 20 otworów badawczych w odległościach od 50 do 100m w przekroju poprzecznym przez całą dolinę Iny. Głębokość otworów sięgała od 6 m w strefie krawędziowej do głębokości ponad 30 m w części środkowej doliny. Pozwoliło to na wykonanie dokładnego przekroju poprzecznego przez dolinę.W związku z tym, że w środkowej części doliny natrafiono na znaczną miąższość osadów organicznych i zastoiskowych glin pylastych wykonano sondowanie CPTU oraz pobrano próbki osadów organicznych oraz pylastych zalegających poniżej. Dla pobranych osadów wykonano standardowe badania geotechniczne a dodatkowo dla wybranych 2 próbek określono wiek TL.Wyniki badań potwierdzają istnienie zbiornika sedymentacyjnego wypełniającego dolinę w późnym plejstocenie (gliny pylaste), w którym spokojną sedymentację przerywały zmienne warunki sedymentacyjne. W holocenie osadzały się gytie, namuły a w stropie torfy). Zbiornik stanowiący dolinę Iny wypełniany osadami mineralnymi istniał w czasie funkcjonowania „Zastoiska Pyrzyckiego”.
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia; 2015, 70, 1
0137-1983
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warunki geologiczno-inżynierskie na obszarze strefy krawędziowej Wzgórz Warszewskich
Autorzy:
Seul, Cyprian
Powiązania:
https://bibliotekanauki.pl/articles/763303.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Szczecińskie Hills
edge zone
morainic plateau
geodynamic process
septaria clay
geotechnical parameters
building failures
Wzniesienia Szczecińskie
strefa krawędziowa
procesy geodynamiczne
iły septariowe
parametry geotechniczne
awarie budowlane
Opis:
Development trends of the modern city imply a reduction in the number of inhabitants in its centre, and thus the construction of dormitory suburbs on the outskirts of the city. One of the potential areas for the development of Szczecin is its northern part, i.e. the so-called Warszewo Hills. This area has both latitudinal and meridional extents of about 8 km, and is characterized by complicated engineering-geological conditions. It lies at altitudes ranging from the sea level (Odra River) to 130.9 m a.s.l. (Wielecka Góra), and has highly varied relief. Its landscape consists of hills and flat plateaux, which are cut by deep small valleys, some of them with streams (e.g. the Warszewiec stream). Geological structure is characterized by the occurrence of glacitectonically disturbed moraine deposits mixed with the Tertiary sands and clays. Taking into account geodynamic processes and their intensity, the wide edge zone of the Warszewo Hills can be divided into three main parts: plateau with the upper edge of slope (area of precipitation infiltration), slope, which is cut by small erosion valleys in places (area of surface water and groundwater flow), slope foot (area of water flow and accumulation of slope deposits). One of the most important tasks of the design-investment process is to take action in such a way as to interfere as little as possible in the natural environment and at the same time to achieve the intended purpose. Predominant occurrence of cohesive deposits in the described area (Oligocene scaled clay mixed with moraine disturbed material) results in a high susceptibility of ground to moisture changes. Strength parameters of stable slopes built of clays considerably decrease under the influence of increasing moisture and thixotropy phenomenon. Then landslide processes are triggered, as well as very slow, hardly noticeable in a short time, soil creep.The complicated arrangement of deposit layers results in spatial variability of groundwater level, and proper design of building foundation is difficult, even in the case of a small, detached house. Too much interference in the landform features (through macro-levelling, construction of streets and routes in the area with steep slopes), the decrease of water retention and increase of surface runoff contribute to an intensification of some geodynamic processes.
Development trends of the modern city imply a reduction in the number of inhabitants in its centre, and thus the construction of dormitory suburbs on the outskirts of the city. One of the potential areas for the development ofSzczecinis its northern part, i.e. the so-called Warszewo Hills. This area has both latitudinal and meridional extents of about 8 km, and is characterized by complicated engineering-geological conditions. It lies at altitudes ranging from the sea level (OdraRiver) to 130.9 m a.s.l. (Wielecka Góra), and has very varied relief. Its landscape consists of hills and flat plateaux, which are cut by deep small valleys, some of them with streams (e.g. the Warszewiec stream). Geological structure is characterized by the occurrence of glacitectonically disturbed moraine deposits mixed with the Tertiary sands and clays. Taking into account geodynamic processes and their intensity, the wide edge zone of the Warszewo Hills can be divided into three main parts: plateau with the upper edge of slope (area of precipitation infiltration), slope, which is cut by small erosion valleys in places (area of surface water and groundwater flow), slope foot (area of water flow and accumulation of slope deposits). One of the most important tasks of the design-investment process is to take action in such a way as to interfere as little as possible in the natural environment and at the same time to achieve the intended purpose. Predominant occurrence of cohesive deposits in the described area (Oligocene scaled clay mixed with moraine disturbed material) results in a high susceptibility of ground to moisture changes. Strength parameters of stable slopes built of clays considerably decrease under the influence of increasing moisture and thixotropy phenomenon. Then landslide processes are triggered, as well as very slow, hardly noticeable in a short time, soil creep. The complicated arrangement of deposit layers results in spatial variability of groundwater level, and proper design of building foundation is difficult, even in the case of a small, detached house. Too much interference in the landform features (through macro-levelling, construction of streets and routes in the area with steep slopes), the decrease of water retention and increase of surface runoff contribute to an intensification of some geodynamic processes.   
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia; 2015, 70, 2
0137-1983
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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