Earth’s core is leaking, scientists say

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Ancient helium that became trapped in Earth’s core when our planet formed billions of years ago may be leaking from lava flows, according to researchers.

Scientists have detected a surprising amount of a rare version of helium, called helium-3, in volcanic rocks on Canada’s Baffin Island, lending support to the theory that the noble gas is leaking from Earth’s core — and has been for millennia. The research team also detected helium-4 within the rocks.

“This area on Baffin Island holds special importance both as sacred lands for the local communities and as a scientific window into the deep Earth,” he said. The Arctic rocks that Horton and his team investigated revealed surprisingly higher measurements of helium-3 and helium-4 than was reported by previous research, and the measurements varied among the samples they collected.

 

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