Thanks Ian, always loved a bit of geology and will look at the vid a bit later with a glass of something.
I used to enjoy the Scots fellow, Iain Stewart's series...might have to revisit them.
Quite a bit of his tv stuff is on Youtube if anyone's interesting.

I remember the more old school, Aubrey Manning, doing a series too that I enjoyed although the details are now hazy.
Maybe another one to revisit.