Meltwater from an ice sheet formed a lake, which then overflowed in a catastrophic flood - cutting through a chalk ridge that previously connected Britain to France.
Very interesting! Thanks, again for your postings of things educational and diverting from the ever-present news of the political world. Your dedication is admirable.
3 posted on 09/16/2006 6:50:23 PM PDT by Socratic
("I'll have the roast duck with the mango salsa.")