Good point. I wonder if anyone has done Carbon-14 tests on samples from near the bottom of the berms that ring the bays.
Very interesting. Could be related to what some have theorized as a cycle of near-earth comet debris that occurs once every 1,500 years (and quite seriously every 3,000). The notion is that the earth comes perilously close to the Leonids (I think that’s the right swarm) at those times, and that this results in pelting the earth with Tunguska-like fireballs. There’s a professor of astronomy (or astrophyics perhaps) at Oxford who has proposed the idea (Cruikshank?), so it’s not some oddball thing. Looking forward to the next segment. At least your newspaper actually does something interesting now and then.
c-14 is not that great for very, very ancient data. If I recall, it’s most suited to the 20,000 to 1,000 BP (Before Present, present being 1957, the year the procedure was invented).