Temat: grain size parameters - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Change of grain size parameters of sediments as a result of wind activity. Barchans Jarangiyn els in Gobi, Mongolia
Autorzy:: Potocki, Mariusz
Mikulska, Małgorzata
Powiązania:: https://bibliotekanauki.pl/articles/2029394.pdf
Data publikacji:: 2004-06-01
Wydawca:: Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:: barchans
dune transformation
grain size parameters
Opis:: Research conducted on the Jarangiyn els field on the Gobi desert in Mongolia took place during the transformation of barchans resulting from the changes in wind direction. The investigation undertaken by the authors had as its goal the evaluation of the changes in the morphology of the forms, extended by the interpretation of the grain size parameters distribution in the longitudinal profiles of the dunes. The results indicate that the processes of barchan transformation are recorded in grain size parameters.
Źródło:: Miscellanea Geographica. Regional Studies on Development; 2004, 11; 81-91
0867-6046
2084-6118
Pojawia się w:: Miscellanea Geographica. Regional Studies on Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Variability of textural characteristics of sandur deposits of Flaajókull and Falljókull (SE Iceland)
Autorzy:: Angiel, Piotr
Mikulska, Małgorzata
Powiązania:: https://bibliotekanauki.pl/articles/2032503.pdf
Data publikacji:: 2006-06-01
Wydawca:: Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:: sandur
coarse clastic sediments
grain size parameters
Iceland
Opis:: Studies conducted on the sandurs of Flaajókull and Falljókull aimed at the reconstruction of the dynamics of braided rivers based on the grain size parameters of deposits. The goal of the project was to estimate the degree of deposit transformation and of changes of grain size characteristics as related to the length of transport in contemporary sandur rivers.
Źródło:: Miscellanea Geographica. Regional Studies on Development; 2006, 12; 111-117
0867-6046
2084-6118
Pojawia się w:: Miscellanea Geographica. Regional Studies on Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Application of Postflotation Tailings in Hydroengineering Structures
Autorzy:: Stefaniak, K.
Wróżyńska, M.
Kroll, M.
Powiązania:: https://bibliotekanauki.pl/articles/952360.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: postflotation tailings
earthen dams
density measures
grain size parameters
Opis:: Economic development stimulated by the increased demand for production of consumer goods and the growing human population result in increasing the amounts of various wastes, including tailings. Mining industry in Poland, comprising also mining of non-ferrous metal ores, is a strategic branch of the national economy and, at the same time, a leading waste producer. Tailings management is a significant problem both in Poland and worldwide. Frequently, considerable amounts of wastes are accumulated in mine spoil tips, in areas not always suitable for their deposition, thus leading to the degradation of the surrounding environment. At the huge volume of produced wastes their rational and economically viable management is becoming crucial. On the other hand, depletion of natural aggregate deposits is an important incentive to search for substitutes, which would be suitable for the development of road infrastructure or which could be used in earth structure engineering to construct hydroengineering objects. Since no profitable recovery technologies are available at present, tailings generated by copper mining are deposited in tailings storage facilities. The largest and at the same time the only currently operating facility in Poland is the Żelazny Most Mining Tailings Storage Facility, belonging to KGHM Polska Miedź S.A. The paper presents criteria for material quality and density imposed on the material embedded in the static core of the tailings pond dam. For this purpose studies were conducted to confirm applicability of sorted tailings as a material for the construction of earth structures.
Źródło:: Journal of Ecological Engineering; 2017, 18, 1; 113-118
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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