Save line

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In geology and geodynamics, the Sava Line is the linear geological fault that separates the Julian Alps from the Karawanken . It begins in the upper reaches of the Save - in northwest Slovenia near the border triangle with Austria and Italy - and initially runs in an east-southeast direction. At Celje , however, it turns steeply to the south in the direction of the Dinarides .

Towards the end of the Paleozoic Era, up to this line, the Yugoslav region shared geological development with the Eastern Mediterranean, from where the Carboniferous Sea encroached on the mainland. In the Permian , the sea reached exactly as far as the Savel line, which is evident in the fossils of Asian fauna types in today's Julian Alps. Local formations of the marine Permian also show a relationship to the Val Gardena strata in South Tyrol, where a similar fault line ( Valsugana line) can be seen south of the Dolomites .

Overall, this eastern part of the Southern Alps has been very narrow and a large number of fault lines can be identified. From satellite images, 170 of them could be located in the North and 132 in the South Karawanken . The complex tectonic structure of this so-called scar zone is an image of the plate-tectonic subduction assumed here , which caused large parts of the crust (including the Paleozoic Era) to disappear into the depths. In the past, the root zone of the Northern Limestone Alps was assumed to be located between the two mountain parts , which is now assumed to be more likely to be under the Periadriatic Seam .

Literature and web links

  • Stanko Buser: The tectonic structure of the Slovenian part of the Karawanken between Jezerko and Jesenice. In: 2. simpozij o geologiji Karavank. = 2nd symposium on the geology of the Karawanken. Slovensko geološko društvo, Ljubljana 1969, pp. 4-6.
  • K. Peters, H. Schmid: Surveying studies on the question of the north-south Alpine border . In: Communications from the Austrian Geological Society. 71/72, 1978/1979, ISSN  0251-7493 , pp. 307-316, (PDF file; 899 kB).
  • Rudolf Oberhauser (Ed.): The geological structure of Austria. Published by the Federal Geological Institute . Springer, Vienna et al. 1980, ISBN 0-387-81556-2 , pp. 92-115.

Individual evidence

  1. ↑ see Peters, Schmid: Surveying technology studies ...