Murtörl

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Murtörl
Compass direction west east
Pass height 2260  m above sea level A.
region Grossarltal , Pongau Muhrtal , Lungau
Watershed Kreealmbach ( Inn ) Mur ( Drava )
expansion trail
Mountains Central Eastern Alps : Hohe Tauern / Niedere Tauern
map
Murtörl (Austria)
Murtörl
Coordinates 47 ° 8 '6 "  N , 13 ° 20' 9"  E Coordinates: 47 ° 8 '6 "  N , 13 ° 20' 9"  E

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The Murtörl is 2260  m above sea level. A. high pass in the main Alpine ridge in the province of Salzburg . It is considered the border between the Hohen and Niederen Tauern .

Location and landscape

View over Hüttschlag to the end of the valley: the Murtörl with Mureck, Murwand and Kreekar between Nebelkareck on the left and Schöderhorn on the right.

The pass lies between the Muhrtal im Lungau and the Großarltal im Pongau .

To the south is the Mureck  ( 2402  m above sea level ), a pre-summit of the Schöderhorn  (Großes Mureck, 2475  m above sea level ). To the north rises - pulling westwards directly at the pass - the Murwand and behind it the Nebelkareck  ( 2386  m above sea level ).

To the east below, at the foot of the Mureck, the Mur rises in the Schmalzgrube ( Mur origin ). This valley is called Murwinkel , it goes northeastwards, then bends to the southeast, where it is specifically also called Muhrtal or upper Murtal in the area of ​​the municipality of Muhr , and then takes its east-facing course in the Mur-Mürz-Furche near St. Michael . The channel from the Mureck to the Mur has no name. To the east lies the Kreekar , which drains over the Kreealmbach to the Großarler Ache and the Salzach .

The Murtörl does not form a particularly significant orographically significant notch in the main Alpine ridge, because of the connection between the basic valley furrows of the Salzach and Mur and because of the geology, the pass is considered to be the border of two large groups in the Central Alps , the Hohe Tauern in the west and the Niedere Tauern in the east. The former stretch to the Brenner Pass , the latter to the Palten-Liesing Valley .

Specifically, here are the southwest Hafner group of Ankogelgroup , and northeast the Radstadt Tauern , with the ridges of Weisseck , Draugstein and Mosermandl star shaped outgoing.

The Murtörl forms the outer border of the Hohe Tauern National Park and the Lungau – Nockberge Biosphere Park .

geology

The area of ​​the Murtörl is still in the Tauern window and, with west-east trending faults, separates the zone of central gneiss and old crystalline from the peripheral slate shell of this geological window . The central alpine crystalline rocks are paleozoic , 450 to 300 million year old remains of the Variscan basement of the Alps ("primary rocks"). The slates of the Tauern window are the oldest seabed of the Thetys , which later formed over it ( ophiolites ), they also form the Glockner ceiling . Against the northeast but already beginning on Weisseck limes actually look in the Northern Limestone Alps covered formations ( Radstädter ceiling , on Weisseck Wetterstein dolomite ). In terms of tectonics, however, there is also a border area between the Lower Eastern and Upper Eastern Alps , which are shear naps from the postponement phase of the Alps, whereby the Lower Tauern belong to the lower, the Hohe Tauern and Kalkalpen to the upper pile of nappes that was pushed over from the south.

The three factors - the formation of the layers through sea deposits over old mountains, the stacking through the displacement of the Alps under the pressure of Africa to the north and the partial re-exposure of the substructure in the central Alps - create the different characteristics of the Hohe Tauern to the west, as high mountains with consistently over 3000 m high main peaks, and the almost medium-mountainous 2000s of the Niedere Tauern to the east (with the rugged limestone peaks of the Radstädter Tauern as a special formation to the northeast).

In the Murtörl itself, the rocks of the Murtörl Group range from the area of ​​the rear Gastein Valley to Sankt Michael im Lungau (parts of the Venediger ceiling ). It is mainly black slate from the Upper Carboniferous to Permian , i.e. roughly 300 million years old oceanic sediments. To the south, the Mureck is already Upper Palaeozoic granite gneiss (central gneiss), with the calcareous Silbereck series, which is the origin of the Mur . Green and calcareous schist , which belong to the Bündnerschiefer group, and date from the Jurassic to the Lower Cretaceous (around 150 million years) begin directly to the north . Within a few hundred meters there are 200 million years of geological history together.

Alpengeologie01.png
Tectonic map of the Alps: The Murtörl at the northeast end of the Tauern window  , with the southern bulge of the calcareous alpine rocks  , some of which already belong to the Central Alps south of the Eastern Fault ( SEMP ); Lower Eastern Alps
Geological map of the Tauern window.png
Petrological map of the Tauern window: central gneiss (eastern mass: Ankogel group), carbonate rocks (Radstädter ceilings); between these two large blocks the narrow zone around the Murtörl, with ophiolite i. A. , Bündner Schiefer ; south still the narrow zone of the metamorphic paleozoic around the central gneiss (Silbereck series), north melange zone (frame zone of the Tauern window)

Tours

The climb over the Murtörl leads from the rear Großarltal near Hüttschlag from the Talwirt over the two Kreealmen, and from the Murwinkel up from the Sticklerhütte (valley bus). On the ridge, the Zentralalpenweg runs over the pass (Austrian long-distance hiking trail 02), stage Tappenkarseehütte in Kleinarltal - Nebelkarscharte - Murtörl over the Schwarzseen (Albert bivouac on the Schmalzscharte ) to Kölnbreinspeicher - Osnabrücker Hütte . This path leads as a high path in the eastern flank of the ridge, the surrounding peaks are relatively easy to climb on alpine trails.

Individual evidence

  1. Christof Exner: Geology of the central Hafner group (Hohe Tauern). In: Jahrbuch der Geologische Bundes-Anstalt 125, Issue 1–2 (1982), pp. 51–154, PDF on ZOBODAT
  2. A variant leads here via Sticklerhütte - Murusprung - Schmalzgrube to the Albert bivouac, as in stage 21A in Hans Führer: Tauern-Höhenweg: From the Seckauer Tauern to the Ahrntal in South Tyrol. Series Rother Wanderführer Special , Bergverlag Rother, 2016 ISBN 9783763342631 , p.168 f.
  3. For example: Summit on both sides of the Murtörl. in Paulis Tourenbuch , 2012 (accessed November 12, 2016) - illustrated directions.