Tag Archives: geology

Grand Canyon is not so ancient : Nature News & Comment

A longstanding geological fight over the age of one of the most iconic landscapes in the United States — Arizona\’s Grand Canyon — may finally be over. The massive chasm does not date back 70 million years, as earlier work … Continue reading

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BBC News – Living Pigments

Professor Pettigrew and his colleagues studied 80 of these Bradshaw rock artworks – named for the 19th-Century naturalist who first identified them – in 16 locations within Western Australia’s Kimberley region. They concentrated on two of the oldest known styles … Continue reading

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