GEOLOGY
DISCOVERY TRIGGERS HUNT FOR PLANET’S PINK DIAMOND-FILLED SCARS
Geologists locate the missing ‘ingredient’ that causes rare diamonds to rise to the surface
DISCOVERIES
Pink diamonds once burst from 1 the seams of the Argyle volcano in Western Australia. So much so, that they were mined there. 2 But scientists never knew why so many could be found at that spot, until now.
A new study, published in Nature Communications, shows that ancient land ‘stretching’ during the break-up of the world’s first supercontinent, Columbia (also known as Nuna), opened gaps in the Earth’s crust. These gaps, created 1.3 billion years ago, caused pink, diamond-rich magma to shoot up and cool at the surface.