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12 sept. 431 av. J.-C. - Основные полезные ископаемые силурийского периода: железные руды, золото, медь, горючие сланцы, фосфориты и барит.

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Водопьянова Олеся ЭБ17-02Б

ByОлеся Водопьянова

28 oct. 2018

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12 sept. 431 av. J.-C.

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~ Il y a 2459 ans

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