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Tab. A8 Isotope data for single grain 207 Pb/ 206 Pb evaporation analyses of zircons of<br />

sample 96M9a<br />

Sample No. of<br />

ratios<br />

204 206<br />

Pb/ Pb<br />

206 208<br />

Pb/ Pb<br />

207 206<br />

Pb/ Pb Age (Ma)<br />

96M9a-1 226 0.000323 2.5 0.050720 ± 48 228.2 ± 2.2<br />

96M9a-2 260 0.000447 2.3 0.050772 ± 53 230.5 ± 2.4<br />

Weighted average 229.3 ± 1.6<br />

Errors are given at the 95% confidence level and refer to the last digits.<br />

XIII

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