Rock desert - rock desert
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A desert where bedrock is exposed without being covered by sand or gravel. Sand and gravel are only thin in places, and eroded surfaces without sand dunes are exposed. Here, large temperature changes between day and night act directly on the exposed rocks, causing intense mechanical weathering. In the Sahara region, it is called hamada. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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砂，礫におおわれないで，基盤岩石が露出した砂漠。砂や礫はところどころに薄く存在するだけで，砂丘も存在しない浸食面が露出している。ここでは昼夜の大きな温度変化が露出した岩石に直接作用して，激しい機械的風化が進行する。サハラ地域ではハマダと呼ばれる。
出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
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