Tuesday, March 18, 2014

Coming up...

I saw hundreds of rock piles on Sunday. Daunted at the prospect of blogging them properly. Here is a fore taste:

2 comments :

Tim MacSweeney said...

Bottom right hand corner: do those small boulders/large cobbles (and the other stones) sit in a bowl-like depression of the, I guess you could say, the "supporting boulder" - or is the old spelling "bowlder" a better word.

pwax said...

Yes. It looks like the support boulder has what FFC calls a "bowl pop" meaning one huge flake removed leaving a bowl-like depression. It looks to have pretty sharp edges, so presumably is manufactured that way.

FFC thinks fire on the rock, followed by rapid cooling might be how this was done.