Bibliografia publikacji pracowników
Państwowej Szkoły Wyższej w Białej Podlaskiej
Baza tworzona przez Bibliotekę Akademii Bialskiej im. Jana Pawła II.
Zapytanie:
QARUN LAKE Liczba odnalezionych rekordów: 3
Przejście do opcji zmiany formatu | Wyświetl/ukryj etykiety | Wyświetlenie wyników w wersji do druku | Pobranie pliku do edytora | Nowe wyszukiwanie Streszczenie: This study evaluates changes in the environmental and climatic conditions in the Faiyum Oasis during the Holocene based on diatom analyses of the sediment FA-1 core from the southern seashore of the Qarun Lake. The studied FA-1 core was 26 m long and covered the time span ca. 9.000 cal. yrs BP. Diatom taxa were abundant and moderately to well-preserved throughout the core sediments. Planktonic taxa were most abundant than the benthic and epiphytic forms, which were very rare and sparsely distributed. The most dominant planktonic genera were Aulacoseira and Stephanodiscus followed by frequently distribution of Cyclostephanos and Cyclotella species. The stratigraphic distribution patterns of the recorded diatoms through the Holocene sediments explained five ecological diatom groups. These groups represent distinctive environmental conditions, which were mainly related to climatic changes through the early and middle Holocene, in addition to anthropogenic activity during the late Holocene. Comparison of diatom assemblages in the studied sediment core suggests that considerable changes occurred in water level as well as salinity. There were several high stands of the freshwater lake level during humid, warmer-wet climatic phases marked by dominance of planktonic, oligohalobous and alkaliphilous diatoms alternated with lowering of the lake level and slight increases in salinity and alkalinity during warm arid conditions evident by prevalence of brackish water diatoms. Projekt/grant: Opracowanie nowych algorytmów analizy obrazu z wykorzystaniem sztucznych sieci komputerowych : działalność statutowa WNET PSW, 2017-WNET/KNT/ZI/1
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Nr opisu: 0000031845 Autorzy: Leszek Marks, Alaa Salem, Fabian Welc, Jerzy Antoni Nitychoruk, Chen Zhongyuan, Abdelfattah Zalat, Aleksandra Majecka, Marta Chodyka, Marcin Szymanek, Anna Tołoczko-Pasek. Tytuł pracy: Preliminary report on unique laminated holocene sediments from the Qarun Lake in Egypt Tytuł czasopisma: Szczegóły: 2016, Vol. 33, no. 1, p. 35--46 p-ISSN: 1641-5558 e-ISSN: 2300-0384 Charakterystyka formalna: artykuł w czasopiśmie polskim Charakterystyka merytoryczna: artykuł oryginalny naukowy Charakterystyka wg MNiSW: artykuł w czasopiśmie bez IF (wykaz MEiN) Język publikacji: ENG Punktacja ministerstwa: 14.000 Praca recenzowana Słowa kluczowe: holocen ; osady jeziorne ; osady laminowane ; jezioro Karun ; Fajum ; Egipt Słowa kluczowe ang.: holocene ; laminated sediments ; Qarun Lake ; Faiyum Oasis ; Egypt Uwaga: Kopia dostępna w Dziale Gromadzenia, Opracowania i Kontroli Zbiorów Biblioteki. http://www.studia.quaternaria.pan.pl/pdfs/sq33-1/s_035_046_opt.pdf DOI: 10.1515/squa-2016-0004 Streszczenie: The Lake Qarun (Faiyum Oasis, northern Egypt) is a relic of the much larger Holocene lake. Past lake levels and extensions were reconstructed, based on setting of archaeological sites scattered along northern paleoshores of the ancient lake. However, geoarcheological works did not yield enough data to establish continuous environmental history of the lake. A deep drilling FA-1 on the southeastern shore of the lake, performed in 2014, supplied with a core, 26 m long that is the one of the longest lake sediment cores in northeastern Africa. The basal section of the core consisted of thin-laminated diatom marly deposits, underlain at the Late Pleistocene/Holocene boundary by coarse-grained sands. The sediment lamine were quite well developed, especially in the lower part of the core. Preliminary results indicated annually deposited sediment sequence with seasonality signals provided by microlamine of diatoms, calcite, organic matter and clastic material. Early Holocene varved sediments from the Faiyum Oasis supplied with exceptional paleoenvironmental data for northeastern Africa, which enriched a record from previous logs drilled at the southwestern margin of the Qarun Lake. Projekt/grant: Rekonstrukcja zmian klimatu w dorzeczu Nilu w holocenie i ich wpływ na rozwój cywilizacji starożytnego Egiptu : Narodowe Centrum Nauki, DEC-2012/05/B/ST10/00558