Central Eastern Alps

Central Eastern Alps

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 ranges (purple lines showing international borders and borders of Austrian states):
Prealps East of the Mur (1) * Lavanttal Alps (2) * Low Tauern (3) * Gurktal Alps (4) * High Tauern (5) * Kitzbühel Alps (6) * Zillertal Alps (7) * Tux Alps (8) * Stubai Alps (9) * Sarntal Alps (10) * Ötztal Alps (11) * Samnaun Alps (12) * Verwall Alps (13) * Rätikon (14) * Silvretta Alps (15) * Sesvenna (16) * Albula Alps (17) * Plessur Alps (18) * Oberhalbstein Alps (19) * Livigno Alps (20) * Bernina (21) * Bergamo Alps (22)

Countries
States
Parent range Eastern Alps
Geology
Orogeny Alpine
Age of rock Mesozoic and Tertiary
Type of rock Gneiss and Slate

The Central Eastern Alps (German: Zentralalpen or Zentrale Ostalpen), also referred to as Austrian Central Alps (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.

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 connexion 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.

Location

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.

Mainly located in Austria, they extend 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.

Central Alps as a major landscape region in Austria

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.

Geomorphology

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.

Geology

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 classification

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[lower-alpha 1] 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[lower-alpha 1] 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 also

References

  1. Not to be confused with the other meaning of Central Alps i.e. the Swiss Alps.
  2. Link to Alps in: Austria-Forum, the Austrian knowledge network – online  (at AEIOU)
  3. Peter Holl: Alpenvereinsführer Ortleralpen
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