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Beerenberg is a stratovolcano which forms the northeastern end of the Norwegian island of Jan Mayen. It is the world's northernmost subaerial active volcano.〔(【引用サイトリンク】title=Jan Mayen Expedition 1997 European Volcanological Society )〕 The volcano is topped by a mostly ice-filled crater about wide, 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.〔(Jan Mayen Topographic Map )〕 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 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 1970 and 1973, 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.〔 Its name means "Bear Mountain" in Dutch, and it takes its name from the polar bears seen there by Dutch whalers in the early 17th century.〔James Gordon Hayes, ''The Conquest of the North Pole: Recent Arctic Exploration'', p. 222, Taylor & Francis, 1934〕 ==See also== *List of volcanoes in Norway *List of mountains in Norway by prominence 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Beerenberg」の詳細全文を読む スポンサード リンク
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