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Environment & Energy

madokie

(51,076 posts)

4. Around here where I'm from the rocks are chirt

Reply to txlibdem (Reply #3)

Wed Jan 11, 2012, 09:28 PM

Jan 2012

you can tell at one point they were molten and in these now solidified rocks is fossils of what is mostly shells, some pretty strange some pretty much like what we have today. In my opinion there has been a mass extinction that I think would go back further than the dinosaurs.

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Prof Stephen Hawking: man faces nuclear armageddon and must colonise space [View all] bananas Jan 2012 OP

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Prof. Hawking is absolutely right txlibdem Jan 2012 #3

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With 5 mass extinctions plus one that nearly wiped out the humans I count 6 txlibdem Jan 2012 #12

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