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Scientists have discovered a "super-deep" diamond mine hundreds of kilometers below the surface of the Earth.
The diamonds have been found in the Juina region of Brazil and have probably come from a depth of 255 miles to 410 miles, according to an international team of researchers. A volcanic eruption has brought the rocks to the surface, reports The Independent.
JURASSIC WORLD & # 39; DISCOVERY IN AUSTRALIA
Diamonds of the Brazilian region of Juina.
(Graham Pearson)
The results of scientific research are published in the journal Science.
"We analyzed, for the first time, the helium isotopes contained in microscopic bubbles inside the super-deep diamonds," said Suzette Timmerman, director of research at the Australian National University, in a statement.
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The researchers say that isotopes support the idea of a "primordial" reservoir of molten rock that has existed since the formation of the Earth or very soon after.
"Diamonds form perfect capsules, so that they retain the exact chemistry and isotopic composition of materials from the part of the Earth where they formed," said co-author Lynton Jaques. 39, study at the Australian National University. some of our deepest direct samples of the Earth. They allow us to see original materials from the formation of the Earth, which do not seem to have changed much in the last four billion years. "
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Timmerman will present the results of the research at the Geochemical Society and at the Goldschmidt Conference of the European Geochemistry Association in Barcelona on 23 August.
In the United States, a vacation teacher recently attracted attention when he discovered a 2.12-carat brown diamond at Crater of Diamonds State Park in Arkansas.
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The Crater of Diamonds State Park allows visitors to search for real diamonds in their source of volcanic origin.
Correction: An earlier version of this story incorrectly asserted that diamonds come from the Earth's core when they come from the "transition zone" located in the Earth's mantle.
Follow James Rogers on Twitter @jamesjrogers
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