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对亚干－翁奇海尔罕变质核杂岩结晶岩系花岗质片麻岩进行了锆石Ｕ－Ｐｂ年龄测定，结果为（９１６±１６）Ｍａ，可代表原花岗质岩浆结晶年龄．这为南蒙微大陆的存在提供了年代学证据，并得到地质背景分析的支持．
U-Pb dating of granitic gneiss in the Yagan-Weng Heihan metamorphic core-rock complex was performed with a mean of (916 ± 16) Ma, representing the age of the granitic gneiss. This provides the chronological evidence for the existence of the NanMen micro-continent and is supported by the geological background analysis.