Re: Dating post correction

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In article <60.2761.7295.0N1F4DB1@canrem.com>, j#d#.moore@canrem.com (J.
Moore) wrote:

>Al Zeller e-mailed me to correct a mistake I made in my
>description of K/Ar dating; he points out that I screwed up and
>got it backwards when I said that the potassium was changing to
>argon and therefore less argon=older. It's the opposite, as he
>explains below:
>

I've read that straightforward K/Ar dating is no good for dating
underwater lava flows, due to the rapid cooling of the flow before the
lighter gasses escape.

Is this true, and is there any variant of the method that will work for
underwater flows.

-- 

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