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Wyszukujesz frazę "Wysocka, Anna." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Sedimentary environment of the early pleistocene gravels of the edfu formation from the saqqara archaeological site (Egypt) – preliminary results
Autorzy:
Czarniecka, Urszula
Wysocka, Anna
Welc, Fabian
Powiązania:
https://bibliotekanauki.pl/articles/2025313.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
gravels
Edfu Pluvial
Pleistocene
Saqqara
Egipt
Egypt
Nauki o Ziemi
Opis:
A gravel horizon is preserved in several locations within the world-wide known archaeological site in Saqqara (northern Egypt). It is characterized by a variable thickness, composed of coarse, quartz, quartzitic and flint pebbles, and considered to correspond to gravels of the Edfu Formation, deposited in the Early Pleistocene by the early phase of the Nile development (Protonile Phase). This relatively short (ca. 200 ka) and at the same time very dynamic period of Protonile activity during the Edfu Pluvial is one of the most poorly recognized hydrological-climatic episodes of the Quaternary in north-eastern Africa. This paper is focused on the preliminary sedimentological-petrographic characteristics of these deposits and an attempt to indicate their source areas as well as mechanisms of transportation and deposition in the context of Pleistocene pluvial episodes.
Źródło:
Studia Quaternaria; 2016, 33; 69-78
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of ground penetrating radar method combined with sedimentological analyses in studies of glaciogenic sediments in central Poland
Autorzy:
Lejzerowicz, Anna
Wysocka, Anna
Kowalczyk, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/2025229.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ground penetrating radar
radar facies
glaciogenic deposits
sedimentological studies
central Poland
Opis:
GPR method is perfectly suited for recognizing of sedimentary facies diversity in shallowly occurring sediments if there is a contrast of electrical properties between and/or within each layer. The article deals with the issue of the correlation between GPR surveys results and sedimentological analyses. As a result of this correlation a conceptual model of depositional systems of studied areas was developed. Studies were performed in two areas located in central Poland, where glacial deposits formed in the Middle Polish (Saalian) Glaciation are present. The study was based on 49 sediment samples and 21 GPR profiles. Analyses of lithofacies as well as granulometric and mineralogical composition of deposits of collected samples were carried out, showing the diversity of glacial deposits in both study sites. During GPR measurements shielded antenna with a frequency of 500 MHz was used which allowed high-resolution mapping of the internal structure of deposits and to identify four characteristic radar facies. Correlation of GPR profiles with point, one-dimensional sedimentological studies allowed the unambiguous interpretation of the GPR image and draw conclusions about the formation environment of individual units. Geophysical and sedimentological data obtained during study provide a new and detailed insight into selected glacial deposits in central Poland.
Źródło:
Studia Quaternaria; 2018, 35; 103-119
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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