[Terrapreta] Pottery Shards and Terra Preta

[lou gold]

But they already have carbon dated the pottery -- some of it is more than
4000 years old. Do you know of any evidence of  finding any "seriously
degraded pottery" at TP sites? I think you have an imagined possibility for
which there is no evidence. Why try to build a theory of TP upon something
so weak?






On Dec 11, 2007 5:53 PM, Robert Klein <arclein at yahoo.com> wrote:

> hi lou
>
> I am actually not making it very clear.  a sun dried plate would be
> subjected to partial firing and a lot of cracking.  Depending on clay
> quality a partially fired plate would end up in the biochar.   I would
> expect it to be very breakable, if it had not broken up on the way in.  A
> lot of it may also be very friable because of poor firing.  Add a few
> hundred years of soaking and we should have something with seriously
> degraded integrity.
>
> I also expect that the Indians went out of their way to breakup any larger
> pieces as they worked the seed hills but that is just a guess until we
> replicate the process.  Archeology may even find dump sites for collected
> waste pottery cleared from the fields
>
> If my theory stands up, we actually have an excellent way of counting the
> number of years in which this soil was manufactured or at least estimating
> it within an acceptable margin of error by simply screening out the pottery
> from a measured amount of soil.
>
> arclein
>
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