This is an archive of AGU's GeoSpace blog through 1 July 2020. New content about AGU research can be found on Eos and the AGU newsroom.

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16 January 2019

New study quantifies deep reaction behind “superdeep” diamonds

By Joshua Rapp Learn Whether they are found in an engagement ring or an antique necklace, diamonds usually generate quick reactions from their recipients. Now, new research shows deep inside the Earth, fast reactions between subducted tectonic plates and the mantle at specific depths may be responsible for generating the most valuable diamonds. The diamonds mined most often around the world are formed in the Earth’s mantle at depths of …


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