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I need some dates and references



Hello,

We are having a discussion the Evolutionary Theory Mailing List and
someone is claiming rocks can not be dated (privately he wrote me that
dates older than 10,000 years are invalid cuz there are no dating
techniques that work)

I am a zoologist, but I know we have dates going back at leat 4.3
billion years in the rocks.

Any geologist out there willing to help me out? And the list? I need
some citations and dates about the oldest rocks on earth.

Thanks,
Thom Quinn
Evolutionary Theory List Owner
http://www.esosoft.com/evolution
thomquinn@esosoft.com