1.2 million year old antarctic ice

https://www.nbcnews.com/science/environment/scientists-drill-nearly-2-miles-pull-12-million-year-old-ice-core-anta-rcna186963
The claim is that they have an ice core that may have some ice in it that is more than 1.2 million years old.
They are going to evaluate the ice for green house gases, chemicals and dust.  Around a million years ago the ice age cycles were becoming longer until we got to around 100,000 year intervals around half a million years ago.
Ron Okimoto