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大别造山带核部罗田片麻岩穹隆内的陈林沟金矿矿石矿物流体包裹体 Rb- Sr同位素年代和郭云坳金矿矿体围岩的钾长石 K- Ar同位素年代分别为 12 3.0± 11Ma和 10 3.0 Ma,其与区内大规模花岗岩侵位和北大别变质地体快速隆升冷却的年龄和造山带两侧成矿带的成矿时代相吻合 ,由此证实在大别造山带核部的金属成矿时代也集中于白垩纪 ,与造山带在造山后伸展构造环境下的隆升阶段相对应 .
The age of K-Ar isotopes of the K-Ar isotopes of the K-Ar isotopic dating of the Rb-Sr isotopes and the rock mass of the Guo Yun’ao gold deposit in the Chenlingou gold deposit in the Luotian gneiss dome in the core of the Dabie orogenic belt are 12 3.0 ± 11Ma and 10 3.0 Ma, which are consistent with the age of rapid uplifting and emplacement of large-scale granitic emplacement and the North Dabie metamorphic terrane and the ore-forming age of metallogenic belt on both sides of the orogenic belt. The metallogenic epoch of the core of the orogenic belt is also concentrated in the Cretaceous and corresponds to the uplift phase of the orogenic belt in the post-orogenic extensional tectonic setting.