| 浙闽沿海壳幔同位素演化轨迹研究 |
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| 引用本文： | 营俊龙,赵溥云,张宏,郭虹.浙闽沿海壳幔同位素演化轨迹研究[J].地球学报,1994,15(Z1):68-74. |
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| 作者姓名： | 营俊龙 赵溥云 张宏 郭虹 |
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| 作者单位： | 核工业北京地质研究院;核工业北京地质研究院;核工业北京地质研究院;核工业北京地质研究院 |
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| 摘 要： | 本区的Sr-Nd-Pb 同位素演化轨迹清楚。隆起区岩浆岩是元古宙陆壳在下地壳局部重熔或重熔-混染产物。沿海区大面积火山喷发是中生代的地幔上涌造成的，Sr-Nd-Pb同位素组成普遍有地幔或下地混染特征，出现同位素演化轨迹的大转折。
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| 关 键 词： | 同位素演化 重熔 浙闽区 |
Crust-Mantle isotopic evolution track along the margin of the pacific in zhejiang and fujian province |
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| Ying Junlong,Zhao Puyun,Zhang Hong and Guo Hong.Crust-Mantle isotopic evolution track along the margin of the pacific in zhejiang and fujian province[J].Acta Geoscientia Sinica,1994,15(Z1):68-74. |
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| Authors: | Ying Junlong Zhao Puyun Zhang Hong and Guo Hong |
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| Abstract: | The Sr-Nd-Pb isotope evolution in the investigated area appear in a clear track.The isotopic characteristics of magmatic rocks in the uplifted area are derived from partial melting or remelting contamination of Proterozoic continents in the lower crust.Large guantity of the Mesozoic volcanic eruption in the area neare to the pacific was caused by the mantle upweling. The Sr-Nd-Pb isotopic composition of the volcanic rocks has a charateristics of crust-mantle hybridization,that can be revealed from the ewist of isotopic evolution track. |
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| Keywords: | isotopic evolution partial melting Zhejiang and Fujian |
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