This is a Polynesia news story, published by MSN, that relates primarily to Rapa Nui news.
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Rapa Nui mantle plumeIFLScience
•79% Informative
A team of Cuban and Colombian geologists found ancient zircon crystals at Rapa Nui , aka Easter Island , in Polynesia .
They dated the ancient minerals as far back as 165 million years ago using radioactive decay of uranium to lead.
This suggests they came from magma with the same composition as today ’s volcanoes.
However, these volcanoes couldn’t have been active 165million years ago the plate below them is not even that old.
The team's previous research on the Galapagos Islands and New Guinea has also hinted that Earth 's mantle may be slower than expected.
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