Lusatian granite massif
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Reason: The lemma only inadequately touches on its central concern. The origin, its internal structure and its references to the crystalline of neighboring areas are missing. The lemma is a geological term (currently: Lusatian anticline zone ). However, aspects of various landscape areas are explained .-- Lysippos 16:54, Jul 27, 2009 (CEST)
The Lusatian granite massif (also: Lausitzer Scholle , Lausitzer Granodiorit-Complex , Lausitzer Antiklinalzone ) is a geological structural unit ( massif ) largely characterized by granodiorite , which forms large parts of Upper Lusatia . The most important useful rock of the massif is accordingly the Lusatian granite .
location
In the south and southeast the massif borders on the Bohemian Chalk, to which the Elbe Sandstone Mountains belong , and on the Giant Mountains-Jizera Crystalline (in the oblast západosudestká (lužická) / West Sudetian zone ( Lausitz )). The Lusatian ground moraine and terminal moraine landscape , formed in the Ice Age ( Pleistocene ), borders in the east and north .
Geological history
At the end of the Cretaceous Period, the entire massif was captured by a powerful tectonic movement, lifted and pushed westward over the Mesozoic underground at the Lusatian Fault. The different resistance of the rocks can be seen in the landscape as a steep step. This is particularly evident in the Dresden Elbe valley widening . The edge of the Lausitzer Platte extends from Loschwitz via Radebeul to Meißen .
Due to the uplift , the course of the Elbe was pushed from its northern direction to the northwest. What remained was the old Elbe valley with the sand and gravel brought in from Bohemia , which today forms the subsoil of the Königsbrück-Ruhlander Heiden and is also partially mined.
The massif is increasingly interspersed with igneous rock at the edges , which can be traced back to lively volcanic activity in the Palaeogene . In the further course of the Tertiary, both old and young rocks were subject to a subtropical climate and severe weathering , which formed a rugged landscape. During the Paleogene, extensive swamp forests emerged in the foreland of the granite massif. Today their remains are the abundant lignite deposits of Lusatia.
In the subsequent Ice Age, these forests were covered by the debris from the ice masses. Valuable kaolin , chamotte and quartz sand deposits were built east of Meißen between Radeburg , Königsbrück and Kamenz . Kaolin is the key raw material for the manufacture of Meissen porcelain .
Possible use for the storage of radioactive substances
The use of the zone as a storage facility for radioactive waste or as a nuclear repository as part of the search for a repository in Germany was discussed.
Individual evidence
- ^ Ivo Chlupáč et al .: Geologická minulost České Republiky . Praha (Academia) 2002, pp. 16-17
- ↑ svglw. Lausitz, travel guide . 1st edition 1985, VEB Tourist Verlag Berlin / Leipzig p. 12
- ↑ Bundestag.de: Final storage of radioactive waste with a high level of heat generation in deep geological formations in Germany. (1994)
- ↑ tagesspiegel.de: Search for nuclear waste repository. A grave for the radiant contaminated site. (2013)
- ↑ mdr.de: Will the nuclear waste repository come to Central Germany? (2019)