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The physics of low Reynolds number plumes is well understood, and this allows a number of testable predictions to be made about mantle plumes. Mantle plumes are predicted to originate from the core–mantle boundary and consist of a large head, ∼ 1000 km in diameter followed by a narrower tail. When the head reaches the top of its ascent it flattens to form a disk with a diameter from 2000 to 2500 km...
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