I find this article very interesting because it mentions the nano-diamonds that were scattered around our planet some 12,877 years ago.
Nanodiamonds
Candle flames contain millions of nanodiamonds
It doesn’t require super incredible heat to create nanodiamonds!
Russian boy stumbles upon woolly mammoth find of the century
“The best preserved adult mammoth discovered in more than 100 years.”
Diamond clues to beasts' disappearance?
Nano-diamonds coincide with the onset of cooling 12,900 years ago and may have wiped out woolly mammoths and the Clovis culture in North America.
Diamonds raining from the sky – at a magnetic reversal
Speculation raged across the internet yesterday after an article in the journal Science told of diamonds drizzling to the earth by the ton, supposedly caused by a comet exploding in mid-air.
California nanodiamonds evidence of Clovis-age comets?
Or evidence of thousands of Tunguska-like explosions in the sky?
No evidence for Clovis comet catastrophe, say archaeologists – Are they blind?
30 Sep 10 – Archaeologists Vance Holliday and David Meltzer argue that there is nothing in the archaeological record to suggest an abrupt collapse of the Clovis people, one of the earliest known cultures to inhabit North America.
Radiation event confirmed at Clovis disappearance
Radioactive carbon-14 levels 3 to 4 times higher than normal
Nanodiamonds in Greenland Ice – Evidence of Explosions in the Sky at a Magnetic Reversal
15 Sep 10 — A layer of trillions of nanosize diamonds discovered in the Greenland ice sheet “adds credence to the hypothesis that fragments of a comet struck across North America and Europe about 12,900 years ago,”