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Location of the Hercynian-Alleghenian mountain belts in the middle of the Carboniferous period.Present day coastlines are indicated in grey for reference. [1]The Variscan orogeny, or Hercynian orogeny, was a geologic mountain-building event caused by Late Paleozoic continental collision between Euramerica (Laurussia) and Gondwana to form the supercontinent of Pangaea.
The Rhenohercynian Zone or Rheno-Hercynian zone [2] in structural geology describes a fold belt of west and central Europe, formed during the Hercynian orogeny (about ). The zone consists of folded and thrust Devonian and early Carboniferous sedimentary rocks that were deposited in a back-arc basin along the southern margin of the then existing ...
Variscan orogeny, also known as Hercynian orogeny – Collision of tectonic plates resulting in the creation of mountains – Deformation in western Iberia, southwest Ireland, southwest England, central and western France, southern Germany and Czech Republic, during the Devonian and Carboniferous Periods
Most important structures and zones of the Variscan or Hercynian Orogeny in Europe. [1]The Moldanubian Zone is in the regional geology of Europe a tectonic zone formed during the Variscan or Hercynian Orogeny (400 to 300 million years ago, during the Devonian and Carboniferous periods).
This category contains articles on the Hercynian/Varsican orogeny of southern and central Europe and northern Africa. Related categories on Earth history are Category:Carboniferous and Category:Devonian.
Most important structures and zones of the Hercynian orogeny in Europe. [1]The Saxothuringian Zone, Saxo-Thuringian zone [2] or Saxothuringicum is in geology a structural or tectonic zone in the Hercynian or Variscan orogen (380-270 million years old) of central and western Europe.
In older rocks from the lower crust intrusions are found that formed during or just after the Hercynian orogeny. These intrusions are older than the Alps and have nothing to do with their formation. Radiometric age determination yields ages around 320 Ma. Slightly younger felsic intrusions formed by Permian and Triassic extension can also be found.
Orogeny (/ ɒ ˈ r ɒ dʒ ə n i /) is a mountain-building process that takes place at a convergent plate margin when plate motion compresses the margin. An orogenic belt or orogen develops as the compressed plate crumples and is uplifted to form one or more mountain ranges .