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Newgrange: quartz and granite wall
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Re: Newgrange: quartz and granite wall
Jul 18, 2016, 21:32
I'm heading over for this talk, should be good and I'll report back if anything new comes up.

I think the amount of Quartz used is a red herring, in his drawing of the wall in the book O'Kelly has it looking about a foot deep or so but this wasn't necessary with the concrete support. Along with the missing Quartz outside the entrance and the tapering at the sides there's no need for conspiracy theories about it.

I also think when you see them up close the Quartz blocks used are not unsuitable for revetment wall building, particularly when the greatest force of the cairn is retained by the kerb. The builders knew this, the arcs of boulders within the cairn show they understood it's easier to retain the cairn layers if you secure the lowest levels.
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