Periadriatic Seam
Encyclopedia : P : PE : PER : Periadriatic Seam
| Geology of the Alps |
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| Tectonic subdivision |
| Helvetic nappes |
| Penninic nappes |
| Austroalpine nappes |
| Southern Alps |
| Formations & rocks |
| Bündner slate | flysch | molasse |
| Geological structures |
| Aarmassif | Dent Blanche klippe | Engadine window | Flysch zone | Giudicárie line | Greywacke zone | Hohe Tauern window | Molasse basin | Penninic thrustfront | Periadriatic Seam | Ivrea zone | Lepontin dome | Rechnitz window | Rhône-Simplon line | Sesia unit |
| Paleogeografic terminology |
| Valais Ocean |
| Briançonnais microcontinent |
| Piemont-Liguria Ocean |
| Apulian or Adriatic plate |
Tectonics and geology
Within the Eastern Alps, the line marks the border between the Central Eastern Alps and the Southern Limestone Alps. In the Western Alps it forms the division between the southern Apulian foreland and the central crystalline zones of the Alps.Continental collision is still going on, with the Apulian and European plates still converging. Movement along the Periadriatic Seam is the cause for the earthquake zone between Vienna and Friuli. Meanwhile, the central zones of the Alps are rising too, causing vertical slip along the fault. The result is the set of major faultzones collectively named Periadriatic Seam. The uplift caused violent erosion of the young orogen, which led to the formation of the Hohe Tauern window. At several regions an heavy uplift of the Central Alps by some kilometers took place, and also a shift of more than 50 km.
Geographic position and names
From east to west, the course of the Periadriatic Seam and the names given to it regionally are as follows:- Drau line: Southwestern Hungary - Styria - Drau valley (Jaun-, Rosental) - Klagenfurt)
- Gailtal line: Gailtal
- Pustertal line: Pustertal-Val Pusteria - Bruneck-Brunico - Meran-Merano
- Giudicárie line: Meran-Merano - Val di Sole
- Tonale or Insubric line: Tonale Pass - Val Camonica - Veltlin - Biella - Gulf of Genoa.
See also:
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