Trans-European Suture Zone
Boundary between the East European Craton and the orogens of South-Western Europe / From Wikipedia, the free encyclopedia
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The Trans-European Suture Zone (TESZ), also known as the Tornquist Zone, is the crustal boundary between the Precambrian East European Craton and the Phanerozoic orogens of South-Western Europe. The zone runs from the North Sea to the Black Sea. The north-western part of the zone was created by the collision of Avalonia and Baltica/East European Craton in the Late Ordovician. The south-eastern part of the zone, now largely concealed by deep sedimentary basins, developed through Variscan and Alpine orogenic events.
Various branches of the TESZ go under different names:
- The Teisseyre-Tornquist Zone (TTZ) in Ukraine and Poland.
- The Sorgenfrei-Tornquist Zone (STZ) through Scania (Sweden), Kattegat, and North Jutland (Denmark).
- The Trans-European Fault (TEF), Thor-Tornquist Suture or Thor Suture through southern Denmark.
The latter two branches (STZ and TEF) span a triangular area of numerous faults, called the Tornquist Fan.[1][2][3][4]