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| Mega-kalahari (这一古沙漠所在的盆地陆相沉积沙层一般被称作卡拉哈里地层，北从赞比亚的刚比亚河北岸一直绵亘到南非和纳米比亚的奥兰治河，面积约250万km²。这一古沙漠东部和北部，现在雨量充沛，多为热带稀树草原和热带森林。但这些地区分布有古沙丘系统和许多干盐湖。在盆地西南部，现在年雨量100〜 300mm、分布着卡拉哈里沙漠 (Kalahari Sands)、多为线形沙丘，面积约115 000km²) | |||
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