Giant blobs in the Earth’s mantle may be driving a “diamond factory” near the heart of our planet

The boundary region between Earth’s molten mineral core and the mantle, the rocky middle layer, may be a diamond factory.

A new laboratory experiment found that under extreme temperatures and pressures, the iron mixture, carbon And water—all the possible components present at the core and mantle boundary—could form diamonds. If this process occurs in depth as well a landmay explain some of the mantle’s strange quirks, including why it contains more carbon than scientists expect.

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