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Wyszukujesz frazę "alluvial" wg kryterium: Temat


Tytuł:
Climatic conditions of the development of tourism and leisure on the Żuławy Alluvial Plain
Autorzy:
Malinowska, Mirosława
Powiązania:
https://bibliotekanauki.pl/articles/1945630.pdf
Data publikacji:
2021-11-29
Wydawca:
Uniwersytet Gdański. Instytut Geografii
Tematy:
climate
tourism
Żuławy Alluvial Plain
Opis:
Based on the data for the years 1981–2014 from two meteorological stations located in the central and northern part of the Żuławy Alluvial Plain, the climatic conditions for the development of tourism and recreation in this area were analyzed. The factors contributing to this type of activity are the average temperatures in the fall and winter months higher than in central Poland and lower temperatures in the summer months, a relatively small number of hot and very hot days, as well as ice and very ice days. The central part of the analyzed area is characterized by lower precipitation totals, lower relative humidity, lower number of steamy days, lower cloud cover, and a high number of days with less than 50% cloudiness than the northern part, which is favorable to tourism in this area. Due to the small number of days with snowfall and snow cover over 8 cm thick, the possibility of skiing here is limited.
Źródło:
Journal of Geography, Politics and Society; 2021, 11, 3; 49-58
2084-0497
2451-2249
Pojawia się w:
Journal of Geography, Politics and Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected Trace Elements in Soil and Plants from Marshy Meadows of the San River Valley
Wybrane mikroelementy w glebach i roślinach łąk łęgowych doliny Sanu
Autorzy:
Kud, K.
Woźniak, L.
Powiązania:
https://bibliotekanauki.pl/articles/388800.pdf
Data publikacji:
2012
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
gleby aluwialne
nikiel
mangan
kobalt
dolina Sanu
alluvial soils
fresh alluvial
nickel
manganese
cobalt
San river valley
Opis:
The research was conducted out on meadows located on floodplain terrains in the San River valley. The subject of the study was Ni, Mn and Co content in soils and plants marshy ecosystems. The total content of analyzed elements and the contents their soluble forms in 1 mol HCl dm–3 were estimated in collected soils. Alluvial soils and turf layer were characterized by natural content of these elements. Fresh alluvial were rich in CaCO3 and other studied elements.
Badania prowadzono na terenie użytków zielonych zlokalizowanych na obszarach zalewowych doliny Sanu. Badano zawartość Ni, Mn i Co w glebach oraz roślinności ekosystemów łęgowych. W badanych glebach oznaczono całkowitą zawartość badanych pierwiastków oraz zawartość ich form rozpuszczalnych w 1 mol HCl dm–3. Gleby aluwialne i ruń łąkowa charakteryzowały się naturalną zawartością badanych pierwiastków. Swieże namuły były zasobne w badane pierwiastki oraz węglan wapnia.
Źródło:
Ecological Chemistry and Engineering. A; 2012, 19, 1-2; 97-104
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lithological features of Vistula River channel deposits in the light of micromorphological analysis
Autorzy:
Bielawska, M.
Powiązania:
https://bibliotekanauki.pl/articles/294771.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
micromorphology
alluvial sediments
Vistula river
Central Poland
Opis:
The aim of the study was to identify and assess the lithological features typical for alluvial sediments of Vistula River from the natural part of its course on 603 km of the river course. For this purpose, the micromorphological analysis was carried out for a sample taken from the surface of a tree covered island. The analysis is laborious, but its great advantage is that it allows to determine the detailed characteristics of undisturbed sediments, supplying other lithological studies. Examined thin section showed fractionation lamination within medium and fine sands, interbedded with coarser grains with some organic admixtures. Detailed analysis allows to detect gradual and sudden changes of discharge energy.
Źródło:
Landform Analysis; 2015, 29; 3-8
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aluwialne wypełnienie doliny oraz stożek napływowy na terasie zalewowej Prosny w Kościelnej Wsi (koło Kalisza) : zmienność litofacjalna i antropogeniczne uwarunkowania
Autorzy:
Hildebrandt-Radke, I.
Powiązania:
https://bibliotekanauki.pl/articles/295272.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
alluvial fan
floodplain terrace
Prosna valley
prehistoric settlements
Holocene
Opis:
The sediment study of the alluvial bottom of Prosna river valley and of alluvial fan in the floodplain terrace, with the special attention paid to its origins, anthropogenic conditions at that time and also to lithofacial variability, enabled to draw the following conclusions. The fan was the result of erosion-denudation processes triggered after 6220š140 BP (Gd-4677) (about 4300 BC). The beginning of these processes can be associated with the Neolithic human beings activity, having taken into account conditions of the Holocene Climatic Optimum as well as presence of Neolithic cultures found in the investigated area. The lithofacial analysis of the sediments has revealed a simple fractionation sequence: D right arrow B right arrow C right arrow A for the alluvial filling of the river bottom. This indicates its accumulation as the result of meandering river activity. Cyclical lithofacies transitions for the alluvial fan sediments have been observed: A (sandy) into F (sandy-silty) and into E (silty).
Źródło:
Landform Analysis; 2011, 16; 64-68
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grindability characterization and work index determination of alluvial ferro-columbite deposits for efficient mineral processing
Autorzy:
Nzeh, Nnaemeka Stanislaus
Adeleke, Abraham A.
Popoola, Patricia Abimbola
Powiązania:
https://bibliotekanauki.pl/articles/24085905.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
alluvial
columbite
mineral
comminution
milling
work index
energy
grindability
Opis:
This study emphasizes on the physicochemical and grindability characteristics and work index of an alluvial formed silica dominated ferro-columbite mineral from Rayfield-Jos minefields in Plateau state, Nigeria. Investigations were also carried out in order to determine the mineralogy of the mineral deposits and most essentially the actual energy consumed during comminution and milling of the mineral so as to achieve the liberation size prior to high efficient mineral processing or beneficiation and the extraction of value metals. The distribution of the mineral particles as well as their sizes was determined, with a mineral liberation size fraction range essentially established as -150+90 μm particle sizes. Mass percentage of each size fraction obtained from PSD analysis conducted before and after comminution was also determined, obtaining 80% passing for both the mineral feeds and comminuted products. Berry and Bruce modified Bond’s work index was therefore obtained, and was determined to be within the range of 2.0414 to 2.5667 kWh/ton. Hence, the energy consumed or required to comminute or grind the Fe-columbite mineral to 80% passing is expected to fall within the range of 0.3613 to 0.4543 kWh. Thus, it could be said that a low milling work index as well as moderately low energy is required for comminution and this can be attributed to the mineralogy, mineral source and alluvial formation of the mineral reserve. Therefore, the grindability/PSD result of the mineral sample indicates that its mineralogy is considered a class of moderately soft mineral type in terms of texture with easy grindability.
Źródło:
Physicochemical Problems of Mineral Processing; 2023, 59, 3; art. no. 170297
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review of Miocene shallow marine and lacustrine depositional environments in Northern Croatia
Autorzy:
Malvić, T.
Powiązania:
https://bibliotekanauki.pl/articles/2059402.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Pannonian Sea
Pannonian Lakes
Paratethys
Miocene
alluvial fans
turbidites
Opis:
The Neogene and Quaternary depositional and structural characteristics of the southwestern Croatian Pannonian Basin System (CPBS) are unique within the Pannonian Basin System. Due to its position at the basin margin, the area was covered by shallow and partially isolated parts of the Pannonian Sea in the Badenian (Middle Miocene). Later, in the Pannonian and Pontian ages, the area contained several brackish lakes, the largest being Sava Lake and Drava Lake. Tectonic events, sedimentation and depositional mechanisms occurring during the Neogene in the CPBS have revealed that those areas can be considered as former shallow seas or lakes dominated by clastic sedimentation. Marine coarse-grained clastic sedimentation took place during the Badenian, with local sources of material and numerous alluvial fans developed during the first transtensional phase. In the Pannonian and Pontian (Late Miocene), sediments were deposited by turbidity currents from a single, distal material source located in the Eastern Alps during the second transtensional tectonic phase.
Źródło:
Geological Quarterly; 2012, 56, 3; 493--504
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phases of gully erosion recorded in alluvial fans (Lublin Upland, E Poland)
Autorzy:
Superson, J.
Klimowicz, Z.
Reder, J.
Rodzik, J.
Zgłobicki, W.
Powiązania:
https://bibliotekanauki.pl/articles/295202.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
alluvial fans
historical gully erosion
loess areas
Eastern Poland
Opis:
The study was focused on the alluvial fans formed in the bottom of the Bystra river valley. A detailed analysis of four fans allowed to distinguish several phases of gully erosion related to human activity. The gullies started to develop in the Neolithis times, the subsequent phases of gully erosion could be dated to: Bronze Age, Middle Ages. In modern times, most of the sediments have been retained within the extensive gully systems.
Źródło:
Landform Analysis; 2011, 17; 205-208
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a fore-mountain alluvial fan of the Olza River (southern Poland) during the Pleistocene
Autorzy:
Salamon, T.
Wójcik, A.
Powiązania:
https://bibliotekanauki.pl/articles/191976.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
fore-mountain alluvial fan
sedimentology
Pleistocene
Kończyce section
southern Poland
Opis:
A series of Pleistocene deposits with different lithology is present where the Olza River flows out from the Carpathian foothills to the Oświęcim Basin. The deposits are mostly composed of gravels forming several series of different ages, which are intercalated with much finer silts and sands as well as organic silts. A complex of glaciogenic deposits is also found as a thin layer of till, glaciolacustrine and glaciofluvial sediments. Loess-like deposits occur in the top part of the section under study. Gravels were deposited in the zone of a fore-mountain fan. The co-occurrence of lithologically different deposits reflects a great variability of sedimentation conditions, which depended mostly on climate changes. However, the formation of fan was also controlled by other factors. Neotectonic movements probably played an important role in its evolution. In this paper, we describe the successive stages of fan development and the factors determining this process. The interpretation is based on the analysis of deposits exposed in the eastern part of the fan, at the Kończyce site. The fan of the Olza River was built up with alluvia mostly during successive glaciations. It was dissected towards the end of each glaciation. During interglacials the fan was only slightly transformed. A special period of fan development occurred during glaciation when the ice sheet advanced on the fan surface. The aggradation of the fan was probably stopped due to uplift of the area. Then, aeolian loess-like deposits started to accumulate on a considerable part of the fan surface. Former opinions about the stratigraphy of the fan deposits are strongly diversified. Precise age of the successive series is still difficult to establish. In the light of contemporary studies, it can not be excluded that age of the Olza fan might be younger than previously suggested .
Źródło:
Annales Societatis Geologorum Poloniae; 2010, 80, No 1; 39-52
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Basement of the alluvia influence on the channel pattern in example of selected reach of the Pilica River
Wplyw podloza aluwiow na typ rozwiniecia koryta rzecznego na przykladzie wybranego odcinka Pilicy
Autorzy:
Falkowski, T
Powiązania:
https://bibliotekanauki.pl/articles/81691.pdf
Data publikacji:
2010
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
channel pattern
alluvial riverbed
erosion resistant deposit
Pilica River
hydrology
Opis:
The type of the channel pattern is being considered as indicative element of the fluvial environment, especially for lowland, mature rivers. Investigations carried out in the Pilica River valley (example of such river) between Inowłódz and Domaniewice (grant no 2P04E 069 29, Ministry of Science) have shown that morphological features of the valley bottom (channel zone, as well as flood terrace) depends not only on river regime, but also on channel zone geological setting. Elements of the Pilica valley geology infl uencing on fluvial processes are protrusions of alluvia basement composed of deposits resistant to erosion, crop out in the channel zone.
Typ rozwinięcia koryta rzecznego jest wskaźnikiem stanu środowiska fluwialnego i reżimu hydrologicznego szczególnie dojrzałych rzek nizinnych. Badanie prowadzone w dolinie Pilicy na odcinku między Inowłodzem a Domaniewicami (grant nr 2P04E 069 29 MNiSW) wykazały, że wpływ na morfologię i litologię zarówno strefy korytowej współczesnej Pilicy, jak i formowanej w holocenie równi zalewowej ma budowa geologiczna podłoża doliny, a szczególnie odsłaniające się w korycie kulminacje jego powierzchni zbudowane z gruntów o większej odporności na erozję. Warunkowane obecnością trudno rozmywalnych progów przepływy wezbraniowe przemodelowały powierzchnię tarasu zalewowego, a w znacznej części analizowanego odcinka zatarły także ślady holoceńskiej ewolucji rzeki. Na wielu odcinkach koryta warunkują także współcześnie jego morfologię.
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation; 2010, 42, 1; 93-104
0208-5771
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Foreland provenance of thick conglomerates in the early stage of the Carpathian Foredeep development : the case of the Sloboda Conglomerate (Lower Miocene), western Ukraine
Autorzy:
Oszczypko, N.
Uchman, A.
Bubniak, I.
Powiązania:
https://bibliotekanauki.pl/articles/2060509.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
molasse
forebulge
alluvial fan
fan delta
Boryslav-Pokuttya Nappe
Ukraine
Opis:
The upper part of the Lower Miocene Sloboda Conglomerate, a 250–1400 m thick unit, was deposited mainly on an alluvial fan and fan delta during the early stages of Carpathian Foredeep development. During of the Old Styrian overthrust movements of the Carpathian orogen, a forebulge was formed, which supplied clasts to the conglomerate. The clasts are dominated by Late Proterozoic–Early Cambrian phyllites, while Paleozoic carbonates are common, and Mesozoic and other rocks are rare. The source area formed mainly by a prolongation of the Małopolska Massif that was involved in the forebulge; this was located close to a palaeovalley cut into Mesozoic and Paleozoic rocks, buried under younger strata. Additional material was derived from the advancing front of the Carpathian Flysch nappes.
Źródło:
Geological Quarterly; 2012, 56, 4; 789--802
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł

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