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Volcanic Seven Summits : ウィキペディア英語版 | Volcanic Seven Summits
The Volcanic Seven Summits are the highest volcanoes on each of the seven continents, just as the Seven Summits are the highest peaks on each of the seven continents. Summiting all seven is regarded as a mountaineering challenge, first postulated as such in 1999.〔(【引用サイトリンク】 url= http://www.skimountaineer.com/ROF/VolcanicSeven.html )〕 ==Definitions== Due to different interpretations of continental borders (geological, geographical, geopolitical) several definitions for the highest summits per continent and the number of continents are possible. The number of seven continents used here is based on the continent model used in Western Europe and the United States. The continents as defined here are on a geological and geographical basis, not geopolitical. An additional complication in determining the highest volcanic summits is defining exactly what constitutes a volcano and how much topographic prominence it must have relative to any nearby non-volcanic peaks in order to qualify. For the purposes of this list, the summits must be an actual eruptive volcanic center, not merely made of volcanic rocks which were uplifted by other geological processes. In addition, a topographic prominence of at least is required, so that the list includes only genuine volcanic mountains and not minor outpourings of lava which happened to leak to the Earth's surface in high-altitude regions (see ''Asia'' below).
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「Volcanic Seven Summits」の詳細全文を読む
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