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Although the dates aren't exactly spelled out, presumably they have a fairly good idea how far back in time the ice cores go, so where's the beef???

Whilst searching for further information on ice-core dating, I ran across this:

>A 1000 year ice core climate record from the Guliya Ice Cap, China and its relationship to global climate variability. Annals of Glaciology, 21, 175-181.ABSTRACT LINK.

(3) the analyses of the upper 100 meters of the 308.6 meter core which provide a 1000-year history, including the Little Ice Age, which is compared with Chinese historical records. Extended periods of positive accumulation on Guliya are closely contemporaneous with dry periods in eastern China. A trans-Pacific teleconnection is suggested by the strong temporal coherence between extended wet and dry phases on Guliya and on the Quelccaya ice cap, Peru. --------------

So, if a 100 meters provide a 1,000 year history, may we assume the ice in this region is approx three thousand YO?

See, that wasn't so difficult was it, LOL! This was written in 1995. Before globull warming and albore...and just maybe there wasn't a creationist or a uniformitarian anywhere in sight...?