Exkursionsführer Schluckenauer Hügelland
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Jurassic Pebbles in the Cretaceous Sandstones of the Bohemian Basin As a Possible Tool for Reconstruction of the Late Jurassic and Late Cretaceous Palaeogeography
Volumina Jurassica, 2019, XVii: 17–38 Doi: 10.7306/VJ.17.2 Jurassic pebbles in the Cretaceous sandstones of the Bohemian Basin as a possible tool for reconstruction of the Late Jurassic and Late Cretaceous palaeogeography Jaroslav Valečka1 Key words: Bohemian Massif, Jurassic relics, Jurassic pebbles, Bohemian Cretaceous Basin, Late Jurassic and Late Cretaceous palaeogeography. Abstract. a new find of pebbles of Jurassic silicites in the Coniacian sandstones of the Bohemian Cretaceous Basin in N Bohemia has permitted analysis of the stratigraphic extent of Jurassic sediments in the NW part of the Bohemian Massif. The studied silicites are domi- nated by the rhax microfacies, while bioclastic and oolitic microfacies are less common. The thickest section of Jurassic sediments in the NW part of the Bohemian Massif has been obtained from the Doubice borehole. It is represented by basal clastics overlain by a 70 m thick succession of silicite-free carbonate rocks which range in age from Callovian to lower kimmeridgian. These deposits are dominated by the bioclastic microfacies whereas the rhax and oolitic microfacies are missing. The studied silicite-bearing sequence is younger than the carbonate rocks in Doubice borehole and was deposited mostly in a deeper zone probably during the late kimmeridgian transgression, much like in the Upper Frankenalb in Se Germany. The extensive Jurassic basin in the Bohemian Massif was connected with the S part of the Polish and German basins and – via the Hessian (Saxonian) Seaway – with the Jurassic basin in Se Germany. The Jurassic sediments were mostly eroded from the Bohemian Massif during the early Cretaceous with the exception of small relics. -
Acc Journal Xxiii 1/2017
ACC JOURNAL XXIII 1/2017 Issue A Natural Sciences and Technology TECHNICKÁ UNIVERZITA V LIBERCI HOCHSCHULE ZITTAU/GÖRLITZ INTERNATIONALES HOCHSCHULINSTITUT ZITTAU (TU DRESDEN) UNIWERSYTET EKONOMICZNY WE WROCŁAWIU WYDZIAŁ EKONOMII, ZARZĄDZANIA I TURYSTYKI W JELENIEJ GÓRZE Indexed in: Liberec – Zittau/Görlitz – Wrocław/Jelenia Góra © Technická univerzita v Liberci 2017 ISSN 1803-9782 (Print) ISSN 1803-9790 (Online) ACC JOURNAL je mezinárodní vědecký časopis, jehož vydavatelem je Technická univerzita v Liberci. Na jeho tvorbě se podílí čtyři vysoké školy sdružené v Akademickém koordinačním středisku v Euroregionu Nisa (ACC). Ročně vycházejí zpravidla tři čísla. ACC JOURNAL je periodikum publikující původní recenzované vědecké práce, vědecké studie, příspěvky ke konferencím a výzkumným projektům. První číslo obsahuje příspěvky zaměřené na oblast přírodních věd a techniky, druhé číslo je zaměřeno na oblast ekonomie, třetí číslo pojednává o tématech ze společenských věd. ACC JOURNAL má charakter recenzovaného časopisu. Jeho vydání navazuje na sborník „Vědecká pojednání“, který vycházel v letech 1995-2008. ACC JOURNAL is an international scientific journal. It is published by the Technical University of Liberec. Four universities united in the Academic Coordination Centre in the Euroregion Nisa participate in its production. There are usually three issues of the journal annually. ACC JOURNAL is a periodical publishing original reviewed scientific papers, scientific studies, papers presented at conferences, and findings of research projects. The first issue focuses on natural sciences and technology, the second issue deals with the science of economics, and the third issue contains findings from the area of social sciences. ACC JOURNAL is a reviewed one. It is building upon the tradition of the “Scientific Treatises” published between 1995 and 2008. -
THE LUSATIAN MOUNTAINS the Undiscovered Beauty
THE LUSATIAN MOUNTAINS The undiscovered beauty 1 Lusatian morning from the hill of Klíč THE LUSATIAN MOUNTAINS – THE UNDISCOVERED BEAUTY There are mountains which will astonish you, and of the Lusatian Mountains are the most beautiful and mountains which will move you. The Lusatian truly exceptional spots – vast, beautifully blooming Mountains are touching because they have meadows crawling up hillsides, spreading in valleys a human dimension. The highest peaks do not reach with solitaires of dateless trees and tempting people the altitude of 800 meters and yet these are the to wade barefoot in the grass. As soon as the summer mountains where you can find almost everything. ends, the Lusatian Mountains are transformed into They are a perfect link with the surrounding a heady pallet of striking colours and quiet shades. landscape formations – their sandstone rocks Then the winter lays down on the landscape and and rock cities look just like the same formations all the colours disappear. White mountain plains in Bohemian Switzerland, they have a volcanic and forests covered with snowy eiderdown full of character of the Central Bohemian Uplands with their sparkling sunny diamonds seem endless. conical tops protruding from the wooded hills and at the same time they bear a close resemblance to the The Lusatian Mountains are not crowded with Jizera Mountains with their far stretching mountain tourists. As if they were jealously guarded by ridges… All this is embodied in a unique complex those who know about this concealed treasure. where your soul becomes refreshed while your eyes In addition, the region is well known for its are sweeping the undulating relief. -
The Mesa of Oybin (Upper Lusatia, Germany) and Its Importance for Geology and Geotourism
GeoJournal of Tourism and Geosites Year XII, vol. 25, no. 2, 2019, p.391-398 ISSN 2065-1198, E-ISSN 2065-0817 DOI 10.30892/gtg.25210-368 THE MESA OF OYBIN (UPPER LUSATIA, GERMANY) AND ITS IMPORTANCE FOR GEOLOGY AND GEOTOURISM Jiří BERÁNEK VŠB – Technical University of Ostrava, Faculty of Mining and Geology, Department of Geological Engineering, e-mail: [email protected], 17, listopadu 2172/15, 708 00 Ostrava Beáta KORANDOVÁ* VŠB – Technical University of Ostrava, Faculty of Mining and Geology, Department of Geological Engineering, e-mail: [email protected] Dana VRUBLOVÁ VŠB – Technical University of Ostrava, Faculty of Mining and Geology, Department of Geological Engineering, e-mail: [email protected] Citation: Beránek, J., Korandová, B., & Vrublová D. (2019). THE MESA OF OYBIN (UPPER LUSATIA, GERMANY) AND ITS IMPORTANCE FOR GEOLOGY AND GEOTOURISM. GeoJournal of Tourism and Geosites, 25(2), 391–398. https://doi.org/10.30892/gtg.25210-368 Abstract: The aim of this article is to call attention to the most interesting place in the Zittau Mountains (Upper Lusatia, Germany), the mesa of Oybin. Besides ruins of the medieval Oybin castle and monastery, there are several examples of geological processes connected with the Upper Cretaceous sedimentation and later erosion in local quartz sandstones. The mesa itself provides an excellent witness of the deposition cycles, probable subaquatic landslides as well as various examples of later weathering. Selected features have been photographed, consulted with relevant literary sources and their probable origin discussed within the text. Photos of selected phenomena are included and explained in details. Visibly denoted and enlightened geological features could increase the tourist attractiveness of the mesa in terms of a complete description of this interesting mountain. -
Proceedings of the 11. Pseudokarst Symposium
2010 PPrroocceeeeddiinnggss ooff tthhee 1111tthh IInntteerrnnaattiioonnaall Symposium on Pseudokarst Symposium on Pseudokarst ational Symposium on Pseudokarst on Symposium ational Intern th 12 - 16 May 2010 Saupsdorf, Germany Proceedings of the 11 the of Proceedings Proceedings of the 11th International Symposium on Pseudokarst 12 - 16 May 2010 Saupsdorf – Saxon Switzerland, Germany Organizers International Union of Speleology, Commission for Pseudokarst Höhlen- und Karstforschung Dresden e.V., Germany Programme Committee István Esterhás Honorary-President of Pseudokarst Commission, Hungary Jiri Kopecký Honorary-President of Pseudokarst Commission, Czech Republic Dr. Jan Urban President of the UIS-Pseudokarst Commission, Institute of Nature Conservation, Pol. Acad. Sci., Cracow, Poland Organizing Committee Caving Club Höhlen- und Karstforschung Dresden e.V. Hartmut Simmert – chairman Bernd Wutzig – vice-chairman Martina Glauche, Andreas Ludwig, Falk Thieme Address of the Organizing Committee Höhlen- und Karstforschung Dresden e.V. Hohe Str. 48b, 01187 Dresden, Germany Symposium homepage: www.hoehlenforschung-dresden.de/symposium Photo (front cover) by Ulrike Schinke Published by Höhlen- und Karstforschung Dresden e.V. Edited by Jana Simmert ISBN: All rights reserved Dresden - Germany, 2011 2 Preface Dear Ladies and Gentlemen, dear Guests! We meet in the same region, and very close to the place in which the 3rd Pseudokarst Symposium was held in 1988. The scenic landscapes of the Saxon Switzerland are the same, as we admired in 1988. However,