Greenlee Lough forum 1 room
Image by rockandy
close
more_vert

StoneGloves wrote:
Yes, but ... If you consider it logically, then a pit eroded by a stone being rotated beneath a flowing glacier can never become deeper than it is wide.
The weight of the glacier could be enough to press down sufficiently to make the eroded hole slightly deeper than the trapped stone is high. But not by much. Glaciers are odd things with odd physics, because (if I remember correctly) they almost behave like liquids when they move.

It's not impossible that a glacier could create a hemispherical depression and that, later, a small rock could get caught in it and blown round and round in an act of a o liam erosion.

My long barrow in Bolton is fifteen units high - that's either metres or yards - both are within the error limits. I was disappointed it isn't the highest L.B. in the country but it seems 'as high as' the tallest Long Barrow. Still no formal response though. It's fragile and wide open to destruction.