Science
Diamonds That Formed Deep in the Earth’s Mantle Contain Evidence of Deep-Earth Recycling Processes – SciTechDaily
Findings allow us to trace how minerals from the surface are drawn down into the mantle. Diamonds that formed deep in the Earth’s mantle contain evidence of chemical…
This cartoon shows a subducting oceanic plate traveling like a conveyor belt from the surface down to the lower mantle. The white arrows show the comparatively well-established shallow recycling pathway in the top layer of the plate (crust and sediments), that feeds into arc volcanoes. The research team’s new findings from studying diamonds reveal a deeper recycling pathway, shown in light blue. Water infiltrating fractures in the seafloor hydrates the rocks in the interior of the plate, forming…
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