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毛項峽谷：黃土高原上的自然奇觀(guān)

2019-12-18 07:56來(lái)源：新華網(wǎng)

關(guān)于波浪谷這種奇怪巖石的形成，有關(guān)記載是這么說(shuō)的：波浪谷展示的是由數百萬(wàn)年的風(fēng)、水和時(shí)間雕琢砂巖而成的奇妙世界。波浪谷巖石的復雜層面，是由一億五千萬(wàn)年前侏羅紀就開(kāi)始沉積的巨大沙丘組成。孫衛南攝

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