How do they determine the age of the water?
The article says the abyssal water lets things like carbon wash in but not back out.
It is dated on the sign of the tun.
Carbon dating identified its age and location some time ago, but scientists struggled to understand why the stagnant zone lay where it did.
What they are really saying is that the water has not circulated since 400 A.D. and that it has been trapped in that abyss since that time.
It had “Best Before June 429 A.D.” and “Future U.S. state Michigan 10 cents deposit” stamps on it.
They count the rings.
If I had to guess it would be based on radiocarbon dating of recovered fish or other deep ocean life that died when the overturning mentioned happened (overturning as I understand it happens when an oxygen depleted layer swaps place with and oxygenated layer ... so the critters suffocate and if the water is also cold ordinary decay may not happen). It may also be related to some change in the topography from an event they think they can date ... but the article did mention carbon dating so....
No fluoride!
No fluoride!
My guess would be some form of isotopes.
Taste.
“How do they determine the age of the water?”
Easy. All water is as old as the earth after the original making with the follow on of meteorites. So it’s all old.
That is unless you believe that the joining of oxygen and hydrogen can happen and create new water, then the question comes up how come we don’t have too much water when people are telling us we are running short since there is so much hydrogen and oxygen?
And if we are running short, and all it takes is the joining of two hydrogen molecules and one oxygen molecule, then why not just make some?
God I don’t feel any better now.
rwood
The label on the bottle tells you when it was “manufactured”....