What is the age of the oldest ice on earth

The oldest ice cores (taken from the Antarctic) date back some 1.5 million years. There are some variables that can introduce error, but it (the error) will be small compared to the age of the recovered materials.This is not theory. Proven laboratory techniques allow us to make these statements. No one who understands the physics of the methods will gainsay them. The physics is not that difficult to get a handle on. But remove any religious (or other) blinders before looking at the science.A link is provided to the white paper on these core samples.