Rauðufossafjöll
| Rauðufossafjöll | ||
|---|---|---|
| height | 1230 m | |
| location | Iceland | |
| Coordinates | 63 ° 58 ′ 38 ″ N , 19 ° 24 ′ 9 ″ W | |
|
||
| Type | Tabular volcano | |
| rock | mostly rhyolite | |
| Age of the rock | 70,000 years | |
| particularities | several tabular volcanoes made of rhyolite | |
The mountain range of Rauðufossafjöll [ rœyðʏfɔsːafjœtl̥ ] (also: Rauðfossafjöll ) is located in the south of Iceland in the Icelandic highlands not far from Landmannalaugar . At their highest point, the mountains reach a height of 1230 m.
Surname
The mountains are named after the Rauðufossar waterfall (dt. Red waterfalls ) (isl. Fjöll = dt. Mountains , in general the mountains of the red waterfall ). The said waterfall is located in the northwest of the mountains. It can be clearly seen from the Dómadalsleið slope .
Location and volcanism
The mountain range is located in the area of the Torfajökull volcano system and a few kilometers east of the Hekla . The mountains consist of rhyolite , which is explained by the proximity to the central volcano, the Torfajökull.
There is an explosion crater in the north of the mountain range, and tabular volcanoes in the south .
The mountains were formed in an eruption phase in the Torfajökull system around 70,000 years ago. It is actually about two mountain ranges that lie over parallel volcanic fissures.
So far, the tabular volcanoes in the southeast of the mountain range have been examined more closely. It turned out that these are tabular volcanoes made of rhyolite rocks, of which not many had been investigated. Most tabular volcanoes consist mainly of basalt (see Herðubreið ). The mountains examined here were formed under at least 350 m thick ice layers during the Ice Age. Their eruption must have been much more explosive than that of basaltic tabular volcanoes. This brought more detailed investigations of its surface to light. It turned out that the eruptions began with violent phreatomagmatic explosions in an ice vault and produced a 300 m thick layer of ash. After breaking through the ice sheet, an effusive phase followed and lava was piled up inside the ice kettle. Various lava formations also formed on the sides of the volcanoes.
Dómadalseið highland slope
A piste, a former bridle path, connects the coast with the interior, in this case the area around Landmannalaugar . It's called Dómadalsleið. To the south of it are the Rauðufossafjöll.
See also
Web links
photos
- Línuvegur to Háifoss, looking south over the valley of the Þjórsá, Rauðafossafjöll in the background
- Fjallabaksleið, Rauðufossafjöll in the background, partly in the clouds
Scientific contributions
- W. McGarvie, JS Gilbert and H. Pinkerton: Physical volcanology of a subglacial-to-emergent rhyolite tuya at Raudufossafjoll, Torfajokull, Iceland.
- On the seismology of the area (PDF file)
Other
- Ari Trausti Guðmundsson, Pétur Þorsteinsson: Íslensk fjöll. Gönguleiðir á 151 tind. Reykjavík 2004, p. 218 f.
- http://www.nat.is/travelguide/landmannaleid_herdubreid_kylingar_jokuldalir.htm
Individual evidence
- ↑ http://www.mbl.is/mm/frettir/innlent/2010/05/06/hjardhegdun_eldstodva/ Accessed: August 25, 2010
- ↑ http://www.google.com/books?hl=is&lr=&id=WIzL70FC6DEC&oi=fnd&pg=PA213&ots=NfcC4bJEBF&sig=1lTeOVBGJNdDp-rUBO6kaeN1C4c#v=onepage&q&f=false Accessed on August 25, 2010 .se