brasil geologia ecoturismo geoturismo turismo geológico Ur brasil geología geoturismo turismo geológico Ur brasilien geologie reise reisen urlaub Ur

Geological Travel

Ur

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Brazil Tours / Trekking – 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 – Eco Adventure Tours / Brazil.

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