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From: Leonard on 12 Jun 2010 17:58 On 10/30/09 9:45 AM, in article b5cdd4d9-314e-4d60-9ec6-fa6690d60d9a(a)d21g2000yqn.googlegroups.com, "Roger Coppock" <rcoppock(a)adnc.com> wrote: > [ . . . ] >> old contain measurable amounts of 14C. The problem here is that vegetation >> is not the only source of natural CO2 and volcanoes produce old CO2 with the >> same 14C signature as fossil fuel emissions - notably zip. When you point > > Volcano and fossil fuel CO2 has different O isotope > ratios from vegetation and animal CO2. > � So called "fossil fuels" have no relationship with fossils, animals and/or vegetation. |