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在新疆库鲁克塔格地区下元古界兴地塔格群和侵入于下元古界的含蛭石超基性岩岩体中,首次获得了两组铀—铅法同位素年龄数据.该样品是新疆地质矿产局第三地质大队所采集,由北京第三研究所测定的.其中采自下元古界兴地塔格群辛格尔组混合岩(混合花岗岩)中的锆石年龄为1912±12.1百万年.这些锆石据黄存换研究均属于经过搬运而再沉积的次生锆石.因此,上述年龄数据老于辛格尔组沉积时的年龄.
For the first time, two sets of uranium-lead isotopic age data were obtained from the Lower Proterozoic Hedi Tagu Group and the Vermiculite ultrabasic rocks intruded into the Lower Proterozoic in the Kuruktag area, Xinjiang Uygur Autonomous Region Collected by the Third Geological Brigade of Xinjiang Bureau of Geology and Mineral Resources and measured by the Third Institute of Beijing, where zircon ages from the Singh Group (mixed granite) of the Tagage Group in the Lower Proterozoic were 1912 ± 12.1 million years.These zircons are all secondary zircons that have been transported and redeposited, so these age data are older than the age of the Singel sediments.