A volcano that stands in the center of Jeju Island, at the southern tip of Korea (Republic of Korea). It has an elevation of 1,950 meters. Trachyte erupted in the Tertiary Period of the Cenozoic Era, forming a troide-shaped mountain, and then in the Quaternary Period, highly fluid basalt erupted over a wide area, forming an aspidis-shaped mountain overall. However, the summit still retains its troide shape. At the peak is Baekrokdam, a crater lake. There are over 360 parasitic volcanoes at the foot of the mountain, and the vertical distribution of plants is clearly evident from the coast to the summit. [Mori Seiu] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
韓国(大韓民国)の南端、済州島(さいしゅうとう/チェジュド)の中央にそびえる火山。標高1950メートル。新生代第三紀に粗面岩が噴出し、トロイデ型の山体をなしたのち、第四紀に流動性が大きい玄武岩が広範囲に噴出して、全体的にアスピーテ型山体をなした。しかし頂上部分はトロイデ型を残している。山頂には火口湖である白鹿潭(はくがたん)がある。山麓(さんろく)部には360余個の寄生火山があり、海岸から頂上まで植物の垂直分布がよく現れている。 [森 聖雨] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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