by Wolfgang Fraedrich, Hamburg, Germany
The Großglockner rises 3,798 meters above sea level. It is the highest mountain of Austria and also the highest peak in the eastern Alps. Directly deviated, separated only by the Glocknerscharte, is the 3,770 m high peaks of the Kleinglockner.
The Grossglockner is composed of igneous rocks and sediments that have been converted to today's particularly hard crystalline schists under high pressure (sediments changed to metamorphites). The Grossglockner is located in the central part of the Tauern Window, a west-east extended zone which emerged by tectonic uplift (from a depth of over 10 km in the uppermost region of the Earth's crust) in interaction with erosion.
North of the Glockner massif flows the Pasterze eastwards, a typical alpine type glacier. The glacier withdraws significantly by global warming.
Wolfgang Fraedrich (distributed via imaggeo.egu.eu)