- Meteorite Time Sequence
    
 
      
      
      
      
      
      
      
      
      
      
      
      
      
    
    
      Meteorite Time Sequence
 
       
  
      Parent body crystallizes  4.5 · 109 years.
 
      
      Carbonate globules form  3.6 · 109 years.
 
      
      Mars impact launches sample  15 · 106 years.
 
      
      Arrives on Earth  13 · 103 years.
 
      
      Meteorite located in Antarctica  1984.
 
      
      Martian origin determined  1993.
 
      
      UNM study shows no sulfur present.
 
      
      NASA results  August 1996.