Monitoring of avulsion channel evolution and river morphology changes using UAV photogrammetry: Case study of the gravel bed Ondava River in Outer Western Carpathians

Area ◽  
2018 ◽  
Vol 51 (3) ◽  
pp. 549-560 ◽  
Author(s):  
Miloš Rusnák ◽  
Ján Sládek ◽  
Jan Pacina ◽  
Anna Kidová
Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 256
Author(s):  
Aleksandra Gawęda ◽  
Krzysztof Szopa ◽  
Jan Golonka ◽  
David Chew ◽  
Anna Waśkowska

Exotic crystalline blocks within the Outer Carpathian flysch have the potential to establish the nature of their eroded basement source(s) and thus to reconstruct the paleogeography of the Outer Carpathians. Petrological investigations (including mineral analyses) coupled with zircon and apatite U-Pb dating were performed on an exotic crystalline block within Eocene siliciclastic rocks in the Rača Zone of the Magura Nappe in the Outer Western Carpathians, Poland. This exotic block is a large (c. 1 m diameter) pink porphyritic granitoid block found in the Osielczyk Stream, southeast of Osielec village in the Makowski Beskid mountains. The timing of magmatic crystallization is constrained by a U-Pb zircon age of 315.9 ± 2.6 Ma (MSWD = 0.69), while inherited zircon cores yield Archean (c. 2780 Ma), Cadomian (541.8 ± 6.7 Ma; MSWD = 0.53), Devonian (417 ± 11 Ma; MSWD = 0.57) and Early Variscan (c. 374 Ma) ages. Apatites from the same sample yield a Tera Wasserburg lower intercept U-Pb age of 311.3 ± 7.5 (MSWD = 0.87). The granitoid exhibits geochemical characteristics typical of I-type granites and eNd(316 Ma) = 2.15 (with a TDM model age of 1.18 Ga) and 87Sr/86Sr(316 Ma) = 0.704710. These data suggest a likely source region in the Saxo-Danubian Granite Belt, which possibly formed the basement of the Fore-Magura Ridge.


Geomorphology ◽  
2014 ◽  
Vol 214 ◽  
pp. 356-365 ◽  
Author(s):  
Ivo Baroň ◽  
Michal Bíl ◽  
Ondřej Bábek ◽  
Veronika Smolková ◽  
Tomáš Pánek ◽  
...  

Radiocarbon ◽  
2013 ◽  
Vol 55 (3) ◽  
pp. 1724-1734 ◽  
Author(s):  
Adam Michczyński ◽  
Piotr Kołaczek ◽  
Włodzimierz Margielewski ◽  
Danuta J Michczyńska ◽  
Andrzej Obidowicz

An age-depth model based on radiocarbon dates was produced from a Holocene profile collected from a rich fen situated in the Beskid Sądecki Mountains (the Outer Western Carpathians, southern Poland). The model is compared against the results of palynological and loss on ignition (LOI) analyses supplemented by the identification of organic deposits. Five distinct palynological episodes are detected. These potential palynological age markers are critically compared with the results of age-depth modeling and other dated profiles. The results presented distinctly show that using palynological episodes as age markers for age-depth construction may be highly misleading.


2013 ◽  
Vol 28 (1) ◽  
pp. 46-57 ◽  
Author(s):  
Arman HADDADCHI ◽  
Mohammad H. OMID ◽  
Amir A. SDEHGHANI
Keyword(s):  

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