Why do diamonds erupt from Earth’s depths? Scientists have the answer
Rare volcanic blasts of kimberlites happen about 25m years after
continental plates tear apart, researchers find.
By Ian Sample, The Guardian, July 26, 2023
[www.theguardian.com]

When Ancient Eruptions Pumped Diamonds to Earth’s Surface
A new study offers clues to the mysteries of kimberlite eruptions,
the source of most of the diamonds mined on Earth today.
By Maya Wei-Haas, New york Times, July 26, 2023,
[www.nytimes.com]

The paywalled paper is:

Gernon, T., Jones, S., Brune, S., Hincks, T., Palmer, M., Schumacher,
J., Primiceri, R., Field, M., Griffin, W., O'Reilly, S. and Keir, D., 2023.
Rift-induced disruption of cratonic keels drives kimberlite volcanism. Nature.
[www.nature.com]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)