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Around 130 million years ago, the African continental plate began to drift northwards and push against the Eurasian plate. During this momentous collision, the two plates interlocked in such a way that kilometer-thick layers of rock were folded, compressed and pushed on top of each other. A process that progressed over millions of years and reached its peak around 30 million years ago, when the rock masses were pushed upwards from the south and formed a gigantic folded mountain range in the heart of Europe: the Alps.
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