| 粤西东田金矿黑云斜长片麻岩锆石U—Pb年龄及意义 |
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| 引用本文： | 曹建劲,姚德贤.粤西东田金矿黑云斜长片麻岩锆石U—Pb年龄及意义[J].中山大学学报(自然科学版),1997,36(2):96-99. |
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| 作者姓名： | 曹建劲 姚德贤 |
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| 作者单位： | 中山大学地球科学系 |
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| 摘 要： | 粤西东田金矿的赋矿围岩—黑云斜长片麻岩的原岩为英云闪长岩，其中的锆石Ｕ－Ｐｂ同位素年龄测定结果表明，它的成岩年龄为２２７３Ｍａ，它是云开隆起区广泛分布的片麻状黑云母花岗岩的源岩之一和金、银、钨等矿床的成矿物质来源
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| 关 键 词： | 金矿，英云闪长岩，U－Pb年龄，地质意义，粤西 |
Zircon U Pb Isotope Age of Biotiteplagioclase Gneiss from Dongtian Gold Mine in Western Guangdong and Its Significance |
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| Cao Jianjin.Zircon U Pb Isotope Age of Biotiteplagioclase Gneiss from Dongtian Gold Mine in Western Guangdong and Its Significance[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,1997,36(2):96-99. |
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| Authors: | Cao Jianjin |
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| Institution: | Cao JianjinDepartment of Earth Sciences,Zhongshan University,Guangzhou 510275\ Yao Dexian |
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| Abstract: | Dongtian gold deposit occurs in the biotiteplagioclase gneiss, whose protolith is tonalite. Results of zircon U Pb analysis of the biotiteplagioclase gneiss show that the tonalite is formed at 2 273 Ma. It is one of the source rock of the gneissic biotite granites widely distributed in Yunkai uplifted area and the ore forming material source of gold, silver, and tungsten mine. |
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| Keywords: | gold mine tonalite U Pb age Western Guangdong |
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