| 中条山落家河花岗闪长岩的铷-锶和铅同位素地质学研究 |
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| 引用本文： | 顾连兴,刘宪华,真允庆,王阳湖. 中条山落家河花岗闪长岩的铷-锶和铅同位素地质学研究[J]. 南京大学学报(自然科学版), 1993, 0(4) |
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| 作者姓名： | 顾连兴 刘宪华 真允庆 王阳湖 |
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| 作者单位： | 南京大学地球科学系，南京大学地球科学系，冶金工业部第三地质勘查局，冶金工业部第三地质勘查局 |
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| 摘 要： | 中条山落家河花岗闪长岩铷-锶等时线年龄为1795 /-84Ma,~(87)Sr/~(86)Sr初始化为0.708 /-0.0073.铅同位素等时线年龄为2572 /-30Ma.这些数据表明该岩体是中条裂谷闭合阶段的产物,在成因上与太古界基底岩系在A-型俯冲过程中发生部分熔融有关.
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| 关 键 词： | 花岗闪长岩 同位素年龄 大陆裂谷 中条山 |
RUBIDIUM-STRONTIUM AND LEAD ISOTOPE GEOLOGY OF THE LUO JIAHE GRANODIORITE IN THE ZHONGTIAOSHAN DISTRICT |
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| Gu Lianxing Liu Xianhua. RUBIDIUM-STRONTIUM AND LEAD ISOTOPE GEOLOGY OF THE LUO JIAHE GRANODIORITE IN THE ZHONGTIAOSHAN DISTRICT[J]. Journal of Nanjing University: Nat Sci Ed, 1993, 0(4) |
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| Authors: | Gu Lianxing Liu Xianhua |
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| Abstract: | A Rb-Sr isochron age of 1795 /-84 Ma with initial ~(87)Sr/~(86)Sr ratio of 0.708 /-0.0073 and a lead isotope age of 2572 /-30 Ma are obtained for the Luojiahe granodiorite in the Zhongtiaoshan district, suggesting that this intrusion were produced during the closure of the Zhongtiaoshan continental rift and could be related genetically to the partial melting of igneous materials in the Archean basement as a result of A-type subduction. |
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| Keywords: | granodiorite isotope age continental rift Zhongtiaoshan |
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