>On 10/15/15, Constantinos Ragazas <[log in to unmask]> wrote:
"Unlikely"? I would argue "more likely". Since the closer in time we
are to the glacier great melt, the more meltwater we have to be
drained from the surface. The glaciers at their maximum were said to
have been 2 miles thick! (not my estimate!). That is a lot of water!
But, Kostas, when the Rhosyfelin quarry was being used the glaciers
and their meltwater had long gone!
But we don't need to go that far back to recognize water levels of
rivers and lakes have declined over the years. In my own lifetime I
have seen some rivers and streams in the countryside of my youth
nearly dry up. And we can also see the water levels drop if we look at
current river banks. Where the higher water volumes carved and eroded
vertical layers of sediments tens of meters thick. I have seen these
too in the countryside of my youth. And of course you must have too.
Are you saying that we are rivers our still carrying water from the
last glaciation, and this meltwater has just got less and less over
the time? In this country most of our river water comes from rain, it
falls out of the skies, though looking at pictures of your formative
homeland you probably never had that there, so an alternative such as
glaciation might be more appealing.