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Extraordinary rainbows of the natural world (BBC)
http://www.bbc.com/travel/slideshow/20130919-extraordinary-rainbows-of-the-natural-world
China’s rainbow mountains
Imagine a world where the mountains are striped with candy colours and people are dwarfed by the landscape’s immensity. Such a place exists in China’s northwestern Gansu Province, where 24 million years of vibrant stone and mineral deposits have created rainbow-striped mountains.
The tinted peaks were fashioned by uplift from the Earth’s tectonic plates – the same ones that formed parts of the Himalayan range – while rain, wind and erosion shaped them into the jagged world seen today. Located around the city of Zhangye, the area covers more than 10sqkm and the vista is most dazzling after a rainfall, when the colours glow even brighter than usual. (Melinda Chan/Getty)
