| 锶、钕同位素对德兴斑岩铜矿元素迁移的示踪 |
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| 引用本文： | 金章东,朱金初,王银喜,张传林,李福春,饶冰.锶、钕同位素对德兴斑岩铜矿元素迁移的示踪[J].铀矿地质,2001,17(3):156-161. |
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| 作者姓名： | 金章东 朱金初 王银喜 张传林 李福春 饶冰 |
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| 作者单位： | 1. 中国科学院南京地理与湖泊研究所
2. 南京大学地球科学系 |
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| 基金项目： | 国家自然科学基金（编号：49733120）和中国博士后基金资助项目。 |
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| 摘 要： | Sr同位素（而不是Sr浓度）由斑岩体内部向围岩接触带呈有规律升高（0．705→0．711），指示了德兴铜厂斑岩铜矿的成矿元素是从岩体内部随成矿流体迁移到接触带附近的，这符合斑岩铜矿的正岩浆成因模式。Nd同位素则相对稳定，可作为蚀变侵入体岩浆起源的研究手段。
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| 关 键 词： | 成矿元素 示踪 斑岩铜矿床 锶同位素 钕同位素 成矿模式 |
| 文章编号： | 1000-0658（2001）03-0156-06 |
| 修稿时间： | 2000年5月18日 |
Sr and Nd isotope tracer implications for element migration path during formation of Dexing porphyry copper deposit, Jiangxi province |
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| JIN Zhang,dong.Sr and Nd isotope tracer implications for element migration path during formation of Dexing porphyry copper deposit, Jiangxi province[J].Uranium Geology,2001,17(3):156-161. |
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| Authors: | JIN Zhang dong |
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| Abstract: | The Sr isotopic composition (rather than the Sr content) gradually increases from the interior of the porphyry body to its contact zone (from 0.705 to 0.711), indicating that ore forming elements including copper itself were transported from the interior together with ore forming hydrotermal fluids to the contact zone and adjacent sites. This concept is in accordance with orthomagmatic genetic model of porphyry copper deposit. Nd isotopic composition is relatively stable during hydrothermal process and may serve as an indicator of magmatic origin of the altered intrusive body. |
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| Keywords: | Sr and Nd isotope element migration tracer porphyry copper deposit |
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