From: mds@bogus.nodomain.nowhere   
      
   JAB  writes:   
      
   > On Sat, 30 Mar 2019 17:47:42 -0400, RS Wood    
   > wrote:   
   >   
   >> This was one of the best things I've read all week   
   >   
   > Years ago, I recall a asteroid hypothesis on this topic.   
   >   
   > Maybe this: "In an article in Science, published in 1980, they   
   > proposed that this impact was so large that it triggered the mass   
   > extinction, and that the KT layer was the debris from that event. Most   
   > paleontologists rejected the idea that a sudden, random encounter with   
   > space junk had drastically altered the evolution of life on Earth. But   
   > as the years passed the evidence mounted,"   
      
   In 1967 I went to a lecture by J. Tuzo Wilson who talked about how   
   the continents as we know them have drifted around, separated and   
   merged.  My date was a recent geology grad from Smith.  "Interesting   
   but, of course, all wrong" was her verdict.   
      
   Now we have plate tectonics and continental drift.  I'm told that I   
   live in a part of Nova Scotia that rammed the other part, backed off   
   and rammed it again. (My words, not those of my geologist   
   interlocutor.)  Huh.   
      
   --   
   Mike Spencer                  Nova Scotia, Canada   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)