Autor: Vieira, G.T. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Glacial and periglacial data integration in a GIS: methodology used in the Serra da Estrela, Portugal
Autorzy:: Vieira, G.T.
Powiązania:: https://bibliotekanauki.pl/articles/2059379.pdf
Data publikacji:: 2000
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Portugal
Serra da Estrela
glacial geomorphology
geographical information system (GIS)
Database Management System (DBMS)
Opis:: The methodology applied in the research in Serra da Estrela (Portugal) is to integrate glacial and periglacial geomorphological data in a Geographical Information System and a Database Management System. The main objective of the procedure is to make use of low cost software for geospatial data integration, statistical analysis and production of geomorphological maps. The digital storage format provides the means for fast access and easy transportation of the data during field campaigns. It is also a very useful way to store the geomorphological data, so it can be used in the future by other researchers working in the area.
Źródło:: Geological Quarterly; 2000, 44, 1; 27-31
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Sedimentological analysis of sandy - gravel accumulations, Serra da Estrela plateaux (Portugal)
Autorzy:: Vieira, G.T.
Mycielska-Dowgiałło, E.
Woronko, B.
Powiązania:: https://bibliotekanauki.pl/articles/295228.pdf
Data publikacji:: 2003
Wydawca:: Stowarzyszenie Geomorfologów Polskich
Tematy:: wind erosion
water erosion
scanning electron microscopy
Central Cordillera
Portugal
Opis:: Sandy-gravel accumulations are frequent features on the plateaux of the Serra da Estrela II and other granitic mountains in Portugal. Their genesis has been attributed to both eolian and water processes and a detailed sedimentological study is needed to better understand the mechanisms involved. The present paper provides results obtained from the heavy mineral analysis and optical and scanning electron microscope study of samples from two sandy-gravel accumulations from the Serra da Estrela. The results indicate that the finer fractions of the original sediment have been illuviated. A well-sorted surface layer and poorly sorted subsurface of the accumulation have resulted from this process. A very short duration of eolian processes is evident from the analysis. Although wind seems to have been the responsible for the morphology of the accumulation, its action was not enough to produce significant abrasion in the surface of quartz grains.
Źródło:: Landform Analysis; 2003, 4; 99-107
1429-799X
Pojawia się w:: Landform Analysis
Dostawca treści:: Biblioteka Nauki

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