A plume of molten rock deep beneath eastern Africa is pulsing upward in rhythmic surges, slowly splitting the continent apart and potentially marking the birth of a new ocean.
At least, that's what a team of researchers led by Emma Watts of the Swansea University in the U.K. recently discovered. More specifically, the scientists' new study found that the Afar region of Ethiopia is underlain by a plume of hot mantle that rises and falls in a repeated pattern, almost like "a beating heart." These pulses, the team says, are closely tied to overlying tectonic plates and play a key role in the slow rifting of the African continent.
"We found that the mantle beneath Afar is not uniform or stationary — it pulses, and these pulses carry distinct chemical signatures," Watts said in a statement. "That's important for how we think about the interaction between Earth's interior and its surface."
Source: www.space.com
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