Further evidence of Earth's core leaking found on Baffin Island

High concentrations of helium-3 have been discovered in rocks on Baffin Island by a team of geochemists from Woods Hole Oceanographic Institution and California Institute of Technology. 

This discovery might indicate that the Earth's core is leaking. The team details their investigation of helium-3 and helium-4 on the Canadian Arctic Archipelago in a report that was published in the journal Nature.

Helium-3 traces have been discovered by earlier researchers in lava flows on Baffin Island, raising the prospect that the Earth's core may be leaking. This is due to the fact that it is an old isotope that was common when Earth was developing and became stuck in the core. 

However, helium-3 quickly escapes into the atmosphere and vanishes into space as it reaches the surface due to its composition. Helium-3 is therefore scarce. The likelihood that it emerged from the core is high if it is discovered on the surface.

The idea that the Earth's core may be leaking intrigued the study team, so they traveled to Baffin Island and started experimenting with various lava flows. They discovered helium-3 in far higher concentrations than those detected in previous studies—higher than any other location on Earth. 

In addition, they discovered the highest-ever ratios of the common isotope helium-3 to helium-4 in terrestrial rock. The researchers propose that the elevated ratios might be an additional indication that helium-3 is seeping out of the core.

The discovery of such elevated helium-3 levels at a terrestrial location, according to the research team, is significant because, should it be demonstrated that the material is indeed escaping from the core, it will provide scientists a hitherto unattainable avenue for studying core material. 

That could provide more information about the core than was previously believed. They observe that further physical instances of core material should be provided if the helium-3 is indeed originating from the core, as should the surrounding material.