It would be good to look at the original data.
K
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Mon, 23 Feb 1998 21:00:48 -0600 John Rylander wrote:
>I thought some of you might find this interesting. --John
>
>http://www.abcnews.com/sections/science/DailyNews/carbon0220.html
>
>By Kenneth Chang
>ABCNEWS.com
>Feb. 23 ÷ Each spring, tiny plants bloom in Lake Suigetsu, a small body of
>water in Japan. When these one-cell algae die, they drift down, shrouding
>the lake floor with a thin, white layer.
> The rest of the year, dark clay sediments settle on the bottom. The
>alternating layers of dark and light count the years like tree rings.
>
>....
>
> Cores taken from Suigetsuās lake bottom avoid that problem. Counting
>the thin white layers of dead algae, each less than a millimeter thick, gave
>the researchers the year, which could then be compared to the date obtained
>by carbon dating, back to 43,000 B.C.