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Newgrange: quartz and granite wall
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Re: Newgrange: quartz and granite wall
Jul 17, 2016, 21:17
CianMcLiam wrote:
GLADMAN wrote:
tiompan wrote:
Without the steel reinforced concrete support the wall would collapse .

That has always been my understanding. From a purely engineering point of view, are there any known prehistoric structural techniques that could have achieved the faƧade we now have?

Yes, similar walls were found at Petit Mont, Gavrinis, Barnenez etc. A good intact section of similar walling can still be seen at Baltinglass Hill.

They are not similar . The walling consists of rectangular slabs which are totally unlike the stones /cobble shape of the quartz .
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