| 陕西柞水—山阳成矿带中酸性小岩体的地球化学研究 |
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| 作者单位： | Wuhan College of Geology，Wuhan 430074 |
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| 摘 要： | 本成矿带内中酸性小岩体均为浅成—超浅成相、高温条件下岩浆结晶的产物。根据岩体及矿床中硫同位素、铅同位素成分及全岩稀土元素组成特征,判断成岩物质来源于地壳深部或上地慢。来自岩浆熔体的热水溶液是导致成矿的重要因素。
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| 关 键 词： | 同位素组成 稀土元素组成模式 物质来源 熔融包裹体 岩浆水 |
THE GEOCHEMICAL STUDY OF THE SMALL INTERMEDIATE- ACIDIC INTRUSIONS IN ZHASHUI-SHANYANG METALLOGENIC BELT, SHAANXI PROVINCE |
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| Authors: | Li Zejiu |
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| Abstract: | The small intermediate-acidic intrusions in the metallogenic belt arc products of crystallization of the magma in shallow-ultrashallow environments at high temperature. Based on the isotopic compositions of sulfur and lead in the rock and ore and the REE patterns of the rocks, it has been inferred that the magmatic substance should come from the lower crust or the upper mantle. The hydrothermal solution from the magma is proved to be an important factor ior ore-formation. |
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| Keywords: | isotopic composition REE patterns material source melt-inclusions magmatic water |
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