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"The oldest continuous ice core records to date extend 123,000 years in Greenland and 800,000 years in Antarctica." https://www.bas.ac.uk/data/our-data/publica
by rhcom2 8y ago
"The oldest continuous ice core records to date extend 123,000 years in Greenland and 800,000 years in Antarctica."
https://www.bas.ac.uk/data/our-data/publication/ice-cores-and-climate-change/ https://www.bas.ac.uk/data/our-data/publication/ice-cores-an...
It's not a scale of millions of years but that's pretty good.