Re: KRS - Possible news to come

From: Philip Deitiker (Donevenask_at_worlnet.att.net)
Date: 09/09/04 

Date: Thu, 09 Sep 2004 02:51:04 GMT

Eric Stevens <eric.stevens@sum.co.nz> says in
news:cgevj093jtqho2q8b0scub08ltlk99b4pm@4ax.com:

> On Thu, 09 Sep 2004 01:13:57 GMT, Philip Deitiker
> <Donevenask@worlnet.att.net> wrote:
>
> --- snip -----
>
>>>>The geological dating is not well enough calibrated to
>>>>mean anything. This is a case whereby the best stance is
>>>>the skeptical one.
>>>
>>> That's premature. You are condemning the dating sight
>>> unseen.
>>
>>Because at this point the critiques and the variance seem
>>to draw on the same conclusion. There is no way to
>>calibrate weathering under all sorts of conditions, one of
>>which would be artificial weathering.
>
> Your operative word is 'seem'.

Right Eric, every thing that everyone else does with their hands
seems, only that which I do with my own hand can I be sure of.
Therefore one has to interpret certainty. I am uncertain of
wether either side can prove their case. Afterall we are not
measuring any standarizable process (like radioactive decay).

The points here that have been made about mica seem very germane
to the critique. For example level of soil sulfates, the level
of soil sulfates to soil halides or nitrates would change the
rate of mica weathering. I know enough about soil to know that
even if you knew perfectly what was going on, your estimates are
going to be +/- 50% at best. If soil sulfate bind to iron it
produces iron sulfates. If the condition of the soil is anoxic
the microbial activity will covert them to iron sulfides, which
has a different property. If the condition of the soil is acidic
and there are soil nitrates present you can form the more
soluble iron nitrate, or if chlorides or iodides present you can
have washing of the iron. If the conditions are extremely anoxic
you can convert iron III to iron II, and the salts of iron II
are more soluble than Iron III (for example a cow plopped on the
stone, or worse a cow died on it) organic materials such as
gluconates can chelate the iron and make it soluble.
  The level of wearing could very well depend on how deep it was
buried, the alkalinity of the soil, the porosity of the soil,
where the water table is, what the average level of various soil
ions are, and how long the root growth was a factor.
  

-- 
Philip
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