Geological Travel

Brazil Travel & Tours / Geology - 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.

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