How is Rock Art aged?

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tiompan T
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 .

T thesweetcheat
thesweetcheat Dec 17, 2012 20:57:20
Replying to tiompan

Yes, it is on the big side. The one's on Harold's Stones are larger though.

The other thing it has against it (the cairn one) is the relative shallowness of the "cup".