Re: Carbonate deposition (formerly oil, etc.)

On Thu, 27 Nov 2003 10:06:41 -0500 <glennmorton@entouch.net> writes:

> I want to clarify something, at least it was my intention in that
> post to head Bill off at the pass by pointing out that you couldn't
> have a continual bloom to rapidly create the chalk beds. The fact
> is that you can deplete a local area of sea water in the
> ingredients for making skeletons and if you do, it takes time to
> replenish the oceanic waters.

You guys are ignoring the possibility of volcanic resupply of nutrients
and calcium. My repost of Art Chadwick's "Marine Blooms" mentioned the
radical influence of iron on the growth of marine organisms. I mentioned
the possibility of carbonatites, or volcanic carbonates as a possible
source of calcium. I see no reason why all of the necessary materials
could not be re-supplied rapidly for continual accelerated growth of
coccoliths. The excess calcium would precipitate to form massive,
fossil-barren limestones, which we also see.
 
> The young-earthers/global flood types (Bill is there some of the
> time and not there some of the time as I understand his position)

Although I have in the past wandered back and forth between YEC and OEC,
I now attempt to remain in the middle, with an admitted sympathy for YEC
views. I feel that this "agnostic" approach to the data gives me a
better shot at seeing the strengths/weaknesses of both sides. I feel
even more strongly that we need each other with our opposing views to
tease the best interpretations out of the data.

> ...want everything sped up and in global systems, that is simply
impossible. What ever is the most rare > nutrient will become the
limiting factor in bloom size and frequency.

Yes, Glenn, given the rates that we see things moving today, that is
impossible. However, given some of the features of the geologic record,
things must have been very different in the past.

Bill

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Received on Fri Nov 28 01:51:06 2003