Not sure about England but in Scotland (which is probably relevant to Aberdeen Angus) mineral rights can belong to somebody who is not the landowner by being "reserved" when the land is sold.
Don't know if it's quite the same thing but I live next to an old gravel pit lake in England and on my deeds it says I can't dig for gravel on my property. Not that I'd want to...however it's the best draining land I've ever owned.