[Repeal The 17th]

And one could speculate ...
that the reason this huge flat plain existed
was because yet another 10,000 years earlier,
under different climatic conditions,
it was at the bottom of the sea ...

[blam]

"And one could speculate ... that the reason this huge flat plain existed was because yet another 10,000 years earlier, under different climatic conditions, it was at the bottom of the sea ..."

Nope. It had been above water for at least 120,000 years prior...probably longer.

[Arthalion]

Probably. The floor of the North Sea is primarily composed of sedimentary rock consisting of soil ejected into the sea by the many rivers that feed into it. The whole thing is essentially one massive underwater delta where the waters of some of Europes biggest rivers drain. Over millions of years, the sediment created a fairly flat plain. When the water receded, it was exposed.

That’s also why there’s so much oil there. Millions of years worth of plant material has been washed into the sea by those same rivers.