Tag Archive for stored

Ancient Earth crust stored in deep mantle

Featured Image: Cut-a-Way diagram of the Earth’s Interior. SOURCE Wikipedia (Public Domain) 

From Terra Daily by Staff Writers
Washington DC (SPX) Apr 25, 2013

Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth’s crust. But decisive evidence for this phenomenon has proven elusive.

New research from a team including Carnegie’s Erik Hauri demonstrates that oceanic volcanic rocks contain samples of recycled crust dating back to the Archean era 2.5 billion years ago. Their work is published in Nature. . . . Read Complete Report