> And not be recorded historically except in the most obscure and oblique > fashion? And not leave any apparent geological or botanical effects? I'd say > the parameters you are looking for would be supernatural.
I think it pretty obvious that if something this size had landed on Ireland in 530 AD, we would have heard about it from a lot further afield!! Sorry, in an effort to remain brief, I was not making myself clear. As far as I am concerned the sixth century comet/meteorite impact explanation of the observed effect is not a good one (there is another much more basic explanation, IMO everything suggests the genetic sampling at the core of the problem was faulty). I posted it here to see whether list-members had any comments on the idea as such. Some historians in the UK are discussing this and last time I looked some of them were apparently taking it seriously. My later question concerned the implications of the (IMO faulty) suggestion that a meteor "might" have done it. Remembering the all-too-vivid Japanese video we saw here a few weeks back (!) I was just curious what size body would have had the effect these historians are apparently proposing in all seriousness. The Arizona earth-impact program tells us "what happens if a body this size and speed hits at such an angle?" and so on... but I wanted to start from a hypothetical kill-zone 300 km radius to work back to what size body these historians would be imagining. Just out of curiosity, I was wondering whether anyone here had an idea. Paul Barford ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
