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Re: Extinction



On Fri, 21 Apr 1995, paul sparks wrote:

> Hi folks!
> 
> I guess I need to get into the argument for what its worth.  Based on the
> modelling that was done wrt the nuclear winter scenario and then wrt to
> think that most of that part of the story has been readily modelled.
> 
> Oh I did have a question out of all of this.  I thought that previous
> threads had pretty well decided that the Decca events were in fact
> temporally differentiated from the KT booundary.  I ask this because a
> 
> And then Mickey Rowe kicked in with the slow die off fossil record thing.
> I'm a bit confused but I thought that I read in Science a couple years ago
> that there was a definitive study done that in fact showed the opposite when
> one looks at all the record.  In addition the statistics tah I memtioned
> knocked off the argument that there should be a spike.  One of the problems
> I have is that I don't know who to believe even within a given discipline.
> Who keeps a running account of the different arguments and worth of such
> studies? How can a paleotology amature like me susposed to make useful
> conclusions if all statement s seem to be autocratic in nature? Hmmmmmm
> 
> I get the same feeling when I read Tom H's comments in thaty he "states"
> things as truth that from the litereature that I have read (Science, some
> physics things and popular stuff like scientif american) don't seem to be
> the last arguments on the subject.  Is this a discipline thing?  Do we have
> a fossil types versus some other group?  I don't know, but I am surprised by
> the arguments that I've heard and especially the Facts that have been
> stated.  I'm probably just getting old.  sigh.................
> 

It just takes time.  The next Snowbird Special Paper will be out soon.  
Compare the 1st to the 2nd to the 3d and you will see a clear change 
toward acceptance of the impact hypothesis.   If the plate tectonics 
revolution is any guide it will take another decade for the debate to 
subside.