Fig. 5

Electron microprobe ages of the zirconolites in the granitic clast C3 from the lunar meteorite DEW 12007. The ages calculated from the U, Th, and Pb concentrations after the blank correction with the 91500 zircon standard (a). The ages after the corrections for the interference percentage of ~ 6.8% on Pb plus interferences of 2.5% (b), 7.5% (c), and 12.5% on U (d), respectively. See discussion in the main text