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Sunday, May 24, 2009

Matterhorn/Cervino (Alps), Mountain Peak : ITALY/ SWITZERLAND

Matterhorn/Cervino (Alps), Mountain Peak : ITALY/ SWITZERLAND


The Matterhorn/Cervino is perhaps the most familiar mountain in the European Alps. On the border between Switzerland and Italy, it towers over the Swiss village of Zermatt and the Italian village Breuil-Cervinia in the Val Tournanche. The mountain has four faces, facing the four compass points, respectively, with the north and south faces meeting to form a short east-west summit ridge. The faces are steep, and only small patches of snow and ice cling to them; regular avalanches send the snow down to accumulate on the glaciers at the base of each face The Matterhorn (German), Cervino (Italian) or Cervin (French), is a mountain in the Pennine Alps. With its 4,478 metres (14,692 ft) high summit, lying on the border between Switzerland and Italy, it is one of the highest peaks in the Alps and its 1,200 metres (3,937 ft) north face is one of the Great north faces of the Alps. It is also one of the deadliest peaks in the Alps: from 1865 – when it was first climbed – to 1995, over 500 alpinists have died on it. The mountain overlooks the town of Zermatt in the canton of Valais to north-east and Cervinia in the Aosta Valley to the south.Although not the highest mountain in Switzerland, the Matterhorn is considered to be an iconic emblem of the Swiss Alps in particular and the Alps in general. The Matterhorn has a pyramidal shape with four faces facing the four compass points: the north and east faces overlook, respectively, the Zmutt valley and Gornergrat ridge in Switzerland, the south face (the only one south of the Swiss-Italian border) fronts the resort town of Breuil-Cervinia, and the west face looks towards the mountain of Dent d'Hérens which straddles the border. The north and south faces meet at the summit to form a short east-west ridge.








The Matterhorn's faces are steep, and only small patches of snow and ice cling to them; regular avalanches send the snow down to accumulate on the glaciers at the base of each face, the largest of which is the Zmutt Glacier to the west. The Hörnli ridge of the northeast (the central ridge in the view from Zermatt) is the usual climbing route. The most well-known faces are the east and north ones, both visible from Zermatt. The east face is 1,000 metres high and, because it is "a long, monotonous slope of rotten rocks",[6] presents a high risk of rockfall, making its ascent dangerous. The north face is 1,200 metres high and is one of the most dangerous north faces in the Alps, in particular for its risk of rockfall and storms. The south face is 1,350 metres high and offers many different routes. Finally, the west face, the highest at 1,400 metres, has the fewest routes of ascent. The four main ridges separating the four faces are also the main climbing routes. The least difficult technical climb, the Hörnli ridge (Hörnligrat), lies between the east and north faces, facing the town of Zermatt. To its west lies the Zmutt ridge (Zmuttgrat), between the north and west faces; this is, according to Collomb, "the classic route up the mountain, its longest ridge, also the most disjointed." The Lion ridge (Cresta del Leone), lying between the south and west faces is the Italian normal route and goes across Pic Tyndall; Collomb comments, "A superb rock ridge, the shortest on the mountain, now draped with many fixed ropes, but a far superior climb compared with the Hörnli."[6] Finally the south side is separated from the east side by the Furggen ridge (Furggengrat), according to Collomb "the hardest of the ridges [...] the ridge still has an awesome reputation but is not too difficult in good conditions by the indirect finish"








The story of the formation of the Matterhorn as well as the whole Alpine range started with the break-up of the Pangaea continent approximatively 200 million years ago into Laurasia (containing the actual Europe) and Gondwana (containing the actual Africa). While the rocks constituting the nearby Monte Rosa remained in Laurasia, the rocks constituting the Matterhorn found themselves in Gondwana, separated by the newly formed Tethys Ocean. 100 million years ago the extension of the Tethys Ocean stopped and the Apulian plate broke away from Gondwana and moved toward the European continent. This resulted in the closure of the western Tethys by subduction under the Apulian plate (with the Piemont-Liguria Ocean first and Valais Ocean later). The subduction of the oceanic crust left traces still visible today at the base of the Matterhorn (accretionary prism). The orogeny itself began after the end of the oceanic subduction when the European continental crust collided with the Apulian continent, resulting in the formation of nappes. The Matterhorn acquired its characteristic pyramidal shape in much more recent times as it was caused by natural erosion over the past million years. At the beginning of alpine orogeny, the Matterhorn was only a rounded mountain like a hill. Because its height is above the snowline, its flanks are covered by ice, resulting from the accumulation and compaction of snow. During the warmer period of summer, part of the ice melts and seeps into the bedrock. When it freezes again, it fractures pieces of rock because of its dilatation (Freeze Thaw), forming a cirque. Four cirques led to the actual shape of the mountain.






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