Beerenberg
| Beerenberg | |
|---|---|
 Beerenberg, August 2005 |
|
| Elevation | 2,277 m (7,470 ft) |
| Prominence | 2,277 m (7,470 ft) |
| Listing | Ultra |
| Location | |
 Beerenberg
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| Coordinates | 71°4′36″N 8°9′52″W / 71.07667°N 8.16444°WCoordinates: 71°4′36″N 8°9′52″W / 71.07667°N 8.16444°W |
| Geology | |
| Type | Stratovolcano |
| Last eruption | 1985 |
| Climbing | |
| First ascent | 1921 Wordie, Mercanton and Lethbridge [1] |
Beerenberg is a 2,277 m (7,470 ft) stratovolcano which forms the northeastern end of the Norwegian island of Jan Mayen. It is the world's northernmost subaerial active volcano.[2] The volcano is topped by a mostly ice-filled crater about 1 km (0.6 mi) wide,[3] with numerous peaks along its rim including the highest summit, Haakon VII Toppen, on its western side.
The upper slopes of the volcano are largely ice-covered, with several major glaciers including five which reach the sea.[4] The longest of the glaciers is the Weyprecht Glacier, which flows from the summit crater via a breach through the northwestern portion of the crater rim, and extends about 6 km (4 mi) down to the sea.
Beerenberg is composed primarily of basaltic lava flows with minor amounts of tephra. Numerous cinder cones have been formed along flank fissures. Its most recent eruption took place in 1985, with prior eruptions in 1973 and 1970, all of which were flank eruptions from fissures on the northeast side of the mountain. Other eruptions with historical records occurred in 1732, 1818, and 1851.[3]
[edit] See also
[edit] References
- ^ Chetwode, Philip; et al (1939). "The Imperial College Expedition to Jan Mayen Island: Discussion". The Geographical Journal 94 (2): 131–134. JSTOR 1787248.
- ^ http://www.sveurop.org/gb/menu/fr_menu.htm Jan Mayen Expedition 1997 European Volcanological Society
- ^ a b "Jan Mayen". Global Volcanism Program, Smithsonian Institution. http://www.volcano.si.edu/world/volcano.cfm?vnum=1706-01=.
- ^ Jan Mayen Topographic Map
[edit] External links
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Wikimedia Commons has media related to: Beerenberg |
- Jan Mayen Homepage, including general info, photos, blog, and webcam
- Beerenberg Expedition 2008 Pictures
- Pictures and a map of Beerenberg
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