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Central Eastern Alps

  (Redirected from Austrian Alps)

The Central Eastern Alps (German: Zentralalpen or Zentrale Ostalpen), also referred to as Austrian Central Alps (German: Österreichische Zentralalpen) or just Central Alps[1] comprise the main chain of the Eastern Alps in Austria and the adjacent regions of Switzerland, Liechtenstein, Italy and Slovenia.

Central Eastern Alps
Pan venediger klein.jpg
Highest point
Peak Piz Bernina
Elevation 4,049 m (13,284 ft)
Coordinates 46°22′56.6″N 9°54′29.2″E / 46.382389°N 9.908111°E / 46.382389; 9.908111Coordinates: 46°22′56.6″N 9°54′29.2″E / 46.382389°N 9.908111°E / 46.382389; 9.908111
Geography
Central Eastern Alps.png
Central Eastern Alps ranges (purple lines showing international borders and borders of Austrian states):
Countries
States
Parent range Eastern Alps
Geology
Orogeny Alpine
Age of rock Mesozoic and Tertiary
Type of rock Gneiss and Slate

The term "Central Alps" is very common in the Geography of Austria as one of the seven major landscape regions of the country. "Central Eastern Alps" is usually used in connection with the Alpine Club classification of the Eastern Alps (Alpenvereinseinteilung, AVE). The Central Alps form the eastern part of the Alpine divide, its central chain of mountains, as well as those ranges that extend or accompany it to the north and south.

The highest mountain in the Austrian Central Alps is Grossglockner at 3,798 metres (12,461 ft).

Contents

LocationEdit

The Central Alps have the highest peaks of the Eastern Alps, and are located between the Northern Limestone Alps and the Southern Limestone Alps, from which they differ in geological composition.

The term "Central Eastern Alps" may also be used more broadly to refer to a larger area of the Eastern Alps, mainly located in Austria, extending from the foot of the Bergamasque Alps at Lake Como and the Bernina Range in the Graubünden canton of eastern Switzerland along the Liechtenstein shore of the Rhine in the west as far as to the lower promontories east of the Mur river including the Hochwechsel in Austrian Styria. The valleys of the rivers Inn, Salzach and Enns mark their northern boundary, the Drau river (roughly corresponding to the Periadriatic Seam) their southern border. In the proposed SOIUSA system, the "Central-eastern Alps" include the Rhaetian Alps, of which the Bernina Range includes the 4,049-meter Piz Bernina in Switzerland, the easternmost 4,000 meter peak of the Alps. In the AVE system, however, the full list of mountain groups in the Alpine Club classification of the Eastern Alps includes the Bernina and neighboring ranges within the Western Limestone Alps, not the Central Eastern Alps as the Alpine Club defines them.

Central Alps as a major landscape region in AustriaEdit

In Austria, the Eastern Alps are divided into the Northern Alps, the Greywacke zone, the Central Alps and the Southern Alps. The latter lie in South Carinthia, but mainly in Northeast Italy.

The Central and Northern Alps are separated by the Northern Longitudinal Trough (nördliche Längstalfurche), the line KlostertalArlbergInn Valley–Salzach Valley as far as Lake ZellWagrain Heights–Upper Enns Valley–Schober PassMürz Valley Alps–Semmering–southern Vienna Basin.[2] The Central Alps and Southern Alps are separated from one another by the Southern Longitudinal Valley (südlichen Längstalzug) Puster Valley (Rienz Valle–Toblach Field–upper Drava (Drau) Valley)–Drava Valley–Klagenfurt Basin–Meža (Mieß), or the Periadriatic Seam, which is not entirely identical with the Southern Longitudinal Trough.

GeomorphologyEdit

The range has the highest summits in the Eastern Alps and is the most glaciated. In the transition zone between the East und West Alps its peaks clearly dominate the region to the west (Piz d'Err, Piz Roseg). On the perimeter, however, there are also less high, often less rugged mountain chains, like the Gurktal Alps and the eastern foothills.

The Eastern Alps is separated from the Western Alps by a line from Lake Constance to Lake Como along the Alpine Rhine valley and via the Splügen Pass.

GeologyEdit

 
Geological makeup of the Alps: The Central Alps are formed from the crystalline East Alpine 
and several windows, regional nappes and islands   

The Central Alps consist mainly of the gneiss and slate rocks of the various Austroalpine nappes (Lower and Upper Austroalpine), with the exception of the Hohe Tauern and Engadine windows, where they are composed mostly of Jurassic rock and limestones and, locally, (Bergell and Rieserferner) also of granite. The Austroalpine nappes are thrusted over the Penninic nappe stack. Massifs of autochthonous, crystalline rock, which hardly moved at all during Alpine folding, do not occur in the Central Alps – unlike the case in the Western Alps. The aforementioned granite intruded near the fracture zone of the Periadriatic Seam. The Western Alps do not have this division into the Northern Limestone Alps, Central Alps and Southern Limestone Alps.

The Austroalpine submerges itself at the eastern edge of the Alps under the Tertiary sediments of the Alpine Foreland in the east and the Pannonian Basin. This fracture zone exhibits active volcanism (e.g. in the Styrian thermal region).

Alpine Club classificationEdit

AVE-
No.
Name Map Country Highest mountain Height (m) Image
25 Rätikon   Switzerland
  Austria
  Liechtenstein
Schesaplana 2,964  
26 Silvretta Alps   Switzerland
  Austria
Piz Linard 3,411  
27 Samnaun Alps   Austria
  Switzerland
Muttler 3,294  
28 Verwall Alps   Austria Hoher Riffler 3,168  
29 Sesvenna Alps   Switzerland
  Italy
  Austria
Piz Sesvenna 3,204  
30 Ötztal Alps   Austria
  Italy
Wildspitze 3,768  
31 Stubai Alps   Austria
  Italy
Zuckerhütl 3,507  
32 Sarntal Alps   Italy Hirzer 2,781  
33 Tux Alps   Austria Lizumer Reckner 2,884  
34 Kitzbühel Alps[a]   Austria Kreuzjoch 2,558  
35 Zillertal Alps   Austria Hochfeiler 3,510  
36 Venediger Group   Austria Großvenediger 3,666  
37 Rieserferner Group   Italy
  Austria
Hochgall 3,436  
38 Villgraten Mountains   Austria
  Italy
Weiße Spitze 2,962  
39 Granatspitze Group   Austria Großer Muntanitz 3,232  
40 Glockner Group   Austria Großglockner 3,798  
41 Schober Group   Austria Petzeck 3,283  
42 Goldberg Group   Austria Hocharn 3,254  
43 Kreuzeck Group   Austria Mölltaler Polinik 2,784  
44 Ankogel Group   Austria Hochalmspitze 3,360  
45a Radstadt Tauern   Austria Weißeck 2,711  
45b Schladming Tauern   Austria Hochgolling 2,862  
45c Rottenmann and Wölz Tauern   Austria Rettlkirchspitze 2,475  
45d Seckau Tauern   Austria Geierhaupt 2,417  
46a Gurktal Alps   Austria Eisenhut 2,441  
46b Lavanttal Alps   Austria
  Slovenia
Zirbitzkogel 2,396  
47 Prealps East of the Mur   Austria Stuhleck 1,782  

The Central Eastern Alps also comprise the following ranges of the West Eastern Alps according to AVE classification, which geologically belong to the Southern Alps and are also subsumed under the Western Limestone Alps division.:

  1. ^ The Kitzbühel Alps and the adjacent Salzburg Slate Alps as part of the Greywacke zone are either counted as part of the Northern Limestone Alps or the Central Alps – geologically they form the bedrock of the Limestone Alps, and the slip zone, on which the latter were thrust northwards
AVE-
No.
Name Map Country Highest mountain Height (m) Image
63 Plessur Alps   Switzerland Aroser Rothorn 2,980  
64 Oberhalbstein Alps   Switzerland
  Italy
Piz Platta 3,392  
65 Albula Alps   Switzerland Piz Kesch 3,418  
66 Bernina Group   Italy
  Switzerland
Piz Bernina 4,049  
67 Livigno Alps   Italy
  Switzerland
Cima de’ Piazzi 3,439  
68 Bergamasque Alps[a]   Italy Pizzo di Coca 3,052  
  1. ^ The Bergamasque Alps are – geologically and petrologically – part of the Southern Limestone Alps, and thus the Southern Alps

The Ortler Alps as well as the Sobretta-Gavia Group are also sometimes classified with the Central Alps, because they lie north of the geological fault of the Periadriatic Seam; in a general regional geographic sense, however, they are seen as part of the Southern Limestone Alps, because they are found south of the longitudinal trough Veltlin (Adda)–Vintschgau (Etsch).[3] Also in terms of rock, the Ortler main crest is part of the Southern Limestone Alps.

See alsoEdit

ReferencesEdit

  1. ^ Not to be confused with the other meaning of Central Alps i.e. the Swiss Alps.
  2. ^ Alps in: Austria-Forum (in German)  (at AEIOU)
  3. ^ Peter Holl: Alpenvereinsführer Ortleralpen