Assertion: martian mantle | /r/HasProperty | up to 200 degrees
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Source sentences:
text: Filiberto and Dasgupta also estimated that the basalts began to melt (presumably in rising plumes of hot mantle) at depths ranging from 230 to 425 kilometers and that the Martian mantle, even as far back as the Noachian period (more than 3.5 billion years ago), was up to 200 degrees Celsius cooler than the mantle of the early Earth.