Cambrian Explosion; the great unconformity (Introduction)

by David Turell , Monday, April 30, 2012, 16:27 (4569 days ago) @ David Turell

Another tortured explanation of the Cambrian Explosion:
> 
> http://www.nature.com/nature/journal/v484/n7394/full/nature10969.html?WT.ec_id=NATURE-2... version of this theory. I've actually touched the great unconformity in the Grand canyon during a lecture by a recognized world expert on Canyon geology who was rafting with us. 750 million years of rock is absent, but is present in other parts of the world to let us recognize the absence in the canyon. The sediment formation in the cambrian as a result may offer a substrate for the development of the cambrian organisms, but the drive for the changes came from the genomes, not the sediment. -http://www.sciencedaily.com/releases/2012/04/120418131429.htm

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Cambrian Explosion; the great unconformity (Introduction)