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'Roots' of Colombian mountains 'dripped' into the mantle millions of years ago — but the peaks still stand tall
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'Roots' of Colombian mountains 'dripped' into the mantle millions of years ago — but the peaks still stand tall

Earth's crust once formed a dense "root" supporting Colombia's northern Sierra Nevada de Santa Marta mountains‚ but new research suggests this prop sank into the mantle millions of years ago.
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