Researchers just discovered a geological hidden passageway.
atoms. But the precise composition can vary a lot over even small distances. The researchers found that there were some strange anomalies under Central America.
They found that deep beneath Panama, the buried portions of the Cocos plate may hold the answer. When a tectonic plate slides under another tectonic plate during subduction, that subducting plate doesn't just disappear; it retains its structure as it grinds down into the mantle, only gradually heating and warping.
This window may be the result of a natural, pre-existing fracture in the subducting Cocos crust, or it may be a place where the crust snapped during subduction. Either way, it lets materials pass through — from one side of the plate to the other — like a breeze through an open window.
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