Hun super terran

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Plate tectonic reconstruction at the time of the Middle Devonian . Location of the Hun superterran between Laurussia in the north and Gondwana in the south.

In the history of the earth, the Hun super terran was a small continent (terran) that separated from Gondwana in the late Silurian and was welded to Laurussia in the Upper Carboniferous . However, more recent ideas no longer assume a single small continent, but rather two larger groups of continental crustal blocks.

history

The concept of the Hun superterran was developed by a group of authors around Jürgen von Raumer and Gérard Stampfli in the early 1990s and introduced into literature in 1998. At that time they still assumed a single small continent. The name is derived from the territory of the Huns . They later moved away from the idea of ​​a unified small continent and assumed two subgroups, the European Hunic Terranes and the Asiatic Hunic Terranes, which are said to be separated from each other by a transform fault . The western part of the European Hun Terrane is the Armorica -Terrang group. The Hun superterran belongs to the superordinate group of the Peri-Gondwanian terranes , which broke off from the northern edge of Gondwana at different times during the Phanerozoic , drifted north and merged with the northern continents Laurentia , Baltica and Laurussia / Laurasia . The term has not yet been generally recognized and is mainly used by those who worked on the former Tethys Ocean.

development

The area of ​​the Hun super terran was an integral part of Gondwana up to the Upper Silurian. The European Hun Terrane lay along the North African coast to about north of Saudi Arabia . The Asiatic Hun Terrans joined to the east of it. The basement is basement rocks consolidated. In the Obersilur they broke off from Gondwana and drifted towards Laurussia. Between the Hun super terran and Laurussia the Rheic Ocean was subducted under the Hun super terran . The Palaeotethys opened between the Hun super terran and Gondwana . In the Lower Devonian, the European Hunian Terrane first collided with blocks of crust that had broken off from the southern edge of Laurussia. A narrow ocean basin, the Rheno-Hercynian Ocean, had opened up between these blocks of crust and Laurussia . In the Upper Carboniferous Gondwana collided with Laurussia and formed the Variscan belt of folds . The European Hun Terrans were included in the Variscan fold belt. A wedge-shaped bay of the Palaeotethys between Gondwana and Laurussia remained open to the east.

Individual evidence

  1. ↑ ... "it contains most of the areas devastated by Attila!" Stampfli, 2000, p. 3

literature

  • L. Robin M. Cocks and Trond H. Torsvik: European geography in a global context from the Vendian to the end of the Palaeozoic. In: DG Gee and RA Stephenson (eds.): European Lithosphere Dynamics. Geological Society London Memoirs, 32: 83-95, London 2006 ISSN  0435-4052
  • Gérard M. Stampfli, Jürgen F. von Raumer and Gilles D. Borel: Paleozoic evolution of pre-Variscan terranes: From Gondwana to the Variscan collision. Geological Society of America Special Paper, 364: 263-280, Boulder 2002 PDF
  • Gérard M. Stampfli: Tethyan oceans. Geological Society London, Special Publications, 173: 1–23, London 2000 doi : 10.1144 / GSL.SP.2000.173.01.01
  • Jürgen von Raumer, Gérard Stampfli and J. Mosar: From Gondwana to Pangea - an Alpine Point of View. Terra Nostra, writings of the Alfred Wegener Foundation, 98/2: 154–156, Berlin 1998 ISSN  0946-8978

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