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采用锆石Ｕ—Ｐｂ稀释法对崂山花岗岩中石英二长岩，黑云二长花岗岩，正长花岗岩及碱性花岗岩４个单元的代表性岩体进行年龄测定。结果表明：其淡黄色透明状锆石的２０６Ｐｂ／２３８Ｕ表面年龄分别为１４６．８±０．８，１２６．２±０．８，１１３．０±０．９和１１０．８±０．９Ｍａ，代表岩石各自的结晶年龄；而正长花岗岩和碱性花岗岩中的红褐色半透明—不透明锆石，因曾遭受严重的晶格破坏和放射性成因铅丢失，表面年龄偏新，不具年代学意义
The zircon U-Pb dilution method was used to determine the ages of the representative units of four units of Laoshan granite quartz quartz monzonite, biotite monzogranite, orthoclase granite and alkaline granite. The results show that the 206Pb / 238U surface ages of the light yellow transparent zircons are 146.8 ± 0.8, 126.2 ± 0.8, 113.0 ± 0.9 and 110.8 ± 0.9Ma respectively, Representing the respective crystallization ages of the rocks. However, the reddish-brown translucent-opaque zircons in the orthoclase and alkaline granites have not been chronologically impaired due to severe lattice damage and radioactive lead loss and surface age-