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新疆北部富蕴县内希勒库都克铜钼矿区的花岗闪长岩及其包体岩相学、矿物化学和岩石地球化学特征及野外地质特征显示其为岩浆混合作用的结果。本文获得花岗闪长岩及其中暗色微粒包体玄武安山玢岩、细粒辉长闪长岩锆石U-Pb年龄为326.8±2.1Ma、327.6±2.4Ma、329.3±2.3Ma,年龄值基本一致,这一结果从年代学角度为花岗闪长岩及其中暗色微粒包体的岩浆混合作用成因提供证据。偏酸性的花岗闪长质与偏基性玄武安山质岩浆混合作用形成了331.9±2.1Ma的安山玢岩脉。
The granodiorite and its granodiorite petrographic, mineralogical and geochemical characteristics and their geologic features in the Neihuilekuoduke copper-molybdenum ore area in Fuyun County, northern Xinjiang show that they are the result of magmatic mixing. In this paper, we obtained the granodiorite and its dark-colored granulite-hosted andesite and the fine-grained long-diorite zircon U-Pb ages of 326.8 ± 2.1Ma, 327.6 ± 2.4Ma and 329.3 ± 2.3Ma, respectively The results are consistent with the geochronological evidence for the magmatic mixing of granodiorite and its dark-colored inclusions. The acid - rich granodiorite and basaltic andesite magma mixed to form 331.9 ± 2.1Ma andesite.