| Characteristic Features and U—Pb Isotopic Ages of Zircons in a Middle Proterozoic Granite Pluton from Baohan Area,Hainan Province,China |
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| 引用本文： | 邓铁殷,陈毓蔚,等.Characteristic Features and U—Pb Isotopic Ages of Zircons in a Middle Proterozoic Granite Pluton from Baohan Area,Hainan Province,China[J].中国地球化学学报,1993,12(2):161-170. |
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| 作者姓名： | 邓铁殷 陈毓蔚 |
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| 作者单位： | [1]DepartmentofGeology,ZhongshanUniversity,Guangzhou510275 [2]InstituteofGeochemistry（GuangzhouBranch）,Acad |
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| 摘 要： | The crystal form,chemical composition and U-Pb isotopic composition of various zircon fractions is a Middle Proterozoic granite pluton from the Baoban area suggest that the zircons are typically magmatogenic in nature,and different from those of sedimentary and epigenetic orgins.The various zircon fractions yielded and age of about 1440.87Ma,which may represent the ge of zircon crystallization.The so-called aoban-group migmatite is,as a matter of fact,a Middle Proterozoic granite pluton.
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| 关 键 词： | 锆石 花岗岩 深成岩体 海南 铀－铅同位素年龄 中原生代 |
Characteristic features and U-Pb isotopic ages of zircons in a Middle proterozoic granite pluton from Baoban Area,Hainan Province,China |
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| Yu Shoujun,Xia Ping,Deng Tieyin,Li Qiang,Chen Yuwei.Characteristic features and U-Pb isotopic ages of zircons in a Middle proterozoic granite pluton from Baoban Area,Hainan Province,China[J].Chinese Journal of Geochemistry,1993,12(2):161-170. |
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| Authors: | Yu Shoujun Xia Ping Deng Tieyin Li Qiang Chen Yuwei |
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| Institution: | (1) Department of Geology, Zhongshan University, 510275 Guangzhou;(2) Acadenia Sinica, Institute of Geochemistry (Guangzhou Branch), 510640 Guangzhou;(3) Guangzhou Branch of the Institute of Geochemistry, Chinese Academy of Sciences, China |
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| Abstract: | The crystal form, chemical composition and U-Pb isotopic composition of various zircon fractions in a Middle Proterozoic granite pluton from the Baoban area suggest that the zircons are typically magmatogenic in nature, and different from those of sedimentary and epigenetic origins. The various zircon fractions yielded an age of about 1440.87Ma, which may represent the ge of zircon crystallization. The so called Baoban group migman’te is, as a matter of feet, a Middle Proterozoic granite pluton. |
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| Keywords: | zircon crystal form granite pluton Middle Proterozoic Hainan |
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