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History of Andes


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The western rim of the South American Plate has been the place of several pre-Andean orogenies since at least the period of the late Proterozoic and early Paleozoic when several terranes and microcontinents collided and amalgamated with the ancient cratons of eastern South America, by then the South American part of Gondwana.

The formation of the modern Andes began with the events of the Triassic when Pangea began to break up and several rifts developed. It continued through the Jurassic Period. It was during the Cretaceous Period that the Andes began to take its present form, by the uplifting, faulting and

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