>Does anyone know the fractionation factor between CO2 and PbCO3 at 50C ? > >For anyone interested, PbCO3 reacts well in phosphoric acid at 50C and >gives consistent results. > >Cheers > >Ian > > >_______________________________________________________ > >Ian Cartwright >Department of Earth Sciences >Monash University >Clayton, Vic 3168 >AUSTRALIA > >Tel +61 (03) 9905 4887 / 4879 >Fax +61 (03) 9905 4903 >e-mail: [log in to unmask] > >May your peak tops be flat, may your isotopes be stable > >... and may your facility never run out ot LN2 or >coffee._______________________________________________________ "Whatever we do to the web, we do to ourselves" - Chief Seattle Joseph F. Whelan Mail Stop 963 U.S. Geological Survey PO Box 25046 Federal Center Denver CO 80225 (303) 236-7671