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Re: Atmospheric O2
On Mon, 11 Sep 1995, Neil Clark wrote:
> > From: "Kay A Ferrari" <Kay.A.Ferrari@jpl.nasa.gov>
> > During the conversation, they mentioned that oxygen
> > levels in the Mesozoic atmosphere fluctuated significantly, sometimes
> > getting
> > up as high as 35 percent. This information, Kevin said, was gathered by
> > analyzing air pockets in amber from different time periods.
> I would have thought that amber was a particularly poor source to
> study atmospheric oxygen as even H2O seem to diffuse through the
> structure to a certain extent - most of the insects appear to be
> dessicated..... or am I wrong?
I agree, it seems to me like a percentage of the oxygen would diffuse
from the amber. I don't think there could be any reliable source to
study the oxygen content of the past.