A mountain range in the north-central part of the African continent, south of the Sahara Desert. It straddles the borders of Chad, Niger, and Libya, but most of it lies in northwestern Chad. It is the highest mountain range in the Sahara Desert, with the highest point being Mount Emixi (3,415 m). It is based on crystalline rocks covered by Paleozoic sandstone, and in places extrusive rocks from the volcanic period are exposed. Three deep dry valleys run through it, indicating that the climate was humid until around 5000 BC. It is inhabited by nomadic peoples. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
アフリカ大陸中北部,サハラ砂漠南部の山地。チャド,ニジェール,リビアの各国境にまたがるが,大半はチャド北西部を占める。サハラ砂漠では最も高い山地で,最高点はエミクシ山 (3415m) 。古生代の砂岩でおおわれた結晶性岩石が基盤をなし,ところどころに火山活動期の噴出岩が露出する。3本の深い涸れ谷が走り,前 5000年頃までは気候が湿潤であったことを示している。遊牧民が住む。
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