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Geological Travel


Geotravel & tours / Brazil – About 3 billion years ago, Ur might have been the first assembly of Archean microcontinents, that during the Hadean, emerged out of a primeval Ocean.

Nowadays, its cratonic fragments are presumed in Africa, India, Australia and the Antarctic – Brazil / Travel & Tours.

Source: A history of continents in the past three billion years (John J. W. Rogers, 1996)