Hi Ricky,

yes you are right completely. But as I learned so far Pliny's report is accepted
nowadays. May be I'm wrong with that. I'm no geologist but a statistician and I
learned it from the Wikipedia too. And yes with this image a procedural texture
would really suffice. I still try to have a better ground view of the flow, but
failed so far. So I think I will stick to the air view given.

Best regards,
Michael

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