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Silbury's structural integrity
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nigelswift
8112 posts

Re: Silbury's structural integrity
Aug 01, 2007, 20:27
"I thought 0.5m was the 'overbreak', the waterlogged crumbly material which 0.5m above would become solid roof again."

You may be right but the wording isn't clear. I took it to me that the overbreak STARTED 0.5 metres above the rings, not that the overbreak was 0.5 metres thick. The latter interpretation seems consistent with the photograph, where there seems tobe a gap of about that size as well as rubble below.

In any case, the information that the overbreak terminates at the point there is clean rock is itself confusing since many feet above that we know there is surface settlement. So whilst there may be material above the overbreak that hasn't suffered "in situ" deterioration, it doesn't seem to be the case that it's still in the same situ... Tricky. To work it all out I mean.
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Re: Silbury's structural integrity (whipangel)		 Replies:
Re: Silbury's structural integrity (nigelswift)
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