How is Rock Art aged?

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thesweetcheat T
thesweetcheat Dec 17, 2012 20:28:35
Replying to tiompan

The "cup" on the cairn stone is probably 4"-5" across (that's from sketchy memory though).

T tiompan
tiompan Dec 17, 2012 20:52:31
Replying to thesweetcheat

thesweetcheat wrote:
The "cup" on the cairn stone is probably 4"-5" across (that's from sketchy memory though).
mmmm , that is still quite big , e.g. I think that 70mm is quite big ,although you do get some that are bigger .