Klagenfurt Basin
The Klagenfurt Basin ( Slovenian : Celovška kotlina; rarely: Carinthian Basin) is a geological basin with an area of 1,750 km², which covers most of Lower Carinthia , which corresponds to about a fifth of the area of Carinthia . It is the largest basin landscape within the Alps and is bordered by the Karawanken and Steiner Alps in the south, Lavanttal Alps in the northeast, Gurktal Alps in the north and Gailtal Alps in the west. The main river is the Drau , the largest city is Klagenfurt .
The topographical and climatic conditions ( basin and good traffic situation , navigable Drava, mild climate) favored early settlement. Many of the Carinthian lakes are also located here , including the Wörthersee and Ossiacher See , as well as the main population of the country.
The Klagenfurt Basin is very often affected by inversion weather conditions, which in autumn can mean days of high fog .
geology
The hills north of Keutschacher Lakes Valley (Schrottkogel, Friedl height), the area north of the Wörthersee furrow , the Seetal Alps with the Zirbitzkogel and the Koralpe and Saualpe in the East are the thousands of meters thick rock sequences of the Eastern Alpine Altkristallins established. Over this substructure lie the kilometer-thick layers (ceilings) of the Gurktal Alps, which, like the old crystalline, come from ancient times. Both rock packages are more than 300 million years old.
The Gurktal blanket also once lay over the Kor and Saualpe, but was eroded there by erosion . Above the layers of the Gurktal Nappe, the thousands of meters thick deposits of the Limestone Alps with an age of 290 to 65 million years, of which only modest remains are left in the North Karawanken, used to follow . The former connection between the northern Karawanken chain and the Northern Limestone Alps ( Lower Austria to Vorarlberg ) are now some small rock remnants (e.g. Ulrichsberg and in the Burgfels von Hochosterwitz ).
During the Ice Age (approx. 2.5 million - 10,000 years ago) the glacier masses coming from Upper Carinthia filled the Klagenfurt Basin several times with great thickness. They reached in the east as far as Griffen and extended to the northeast as far as the area of the longitudinal lake . While the peaks of Ulrichsberg and Magdalensberg rose just above the ice, the Sattnitz was completely covered by ice at the time of the glacier highs. A 700 meter thick ice sheet lay over Klagenfurt.
Web links
Individual evidence
- ↑ RIVER WATER NATURAL SPACES IN AUSTRIA. (PDF) In: Umweltbundesamt.at. P. 90 , accessed on September 18, 2017 .
- ^ Adolf Fritz: Investigation of the influx of pollen in 1972/73 in the Klagenfurt Basin . In: Carinthia II . 1975 ( online at ZOBODAT [PDF; accessed September 18, 2017]).
- ↑ Werner Bätzing: Klagenfurt Basin. In: Small Alpine Lexicon: Environment, Economy, Culture. P. 137 , accessed October 18, 2014 .
- ↑ http://www.kaerntner-landtag.ktn.gv.at/17065_DE.pdf p. 8