| 滩间山金矿田岩浆岩特征及其与金矿化关系 |
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| 引用本文： | 国家辉.滩间山金矿田岩浆岩特征及其与金矿化关系[J].地质与资源,1998,7(2):96-103. |
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| 作者姓名： | 国家辉 |
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| 作者单位： | 沈阳地质矿产研究所 |
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| 摘 要： | 滩间山金矿田的岩浆岩主要为侵入岩，呈各种性状产出的侵入岩构成了华力西晚期滩间山斜长花岗斑岩杂岩体，杂岩体的各类岩石为同源岩浆不同演化阶段的产物，杂岩体蚀变较普遍，特别是控矿断裂穿切的部位蚀变矿化强烈，有的则构成矿体。岩浆岩与金矿化演化顺序，斜长细晶岩或花岗细晶岩→斜长花岗斑岩（主期）→石英闪长岩（株）及闪长玢岩（脉）→云煌岩（脉）→花岗斑岩（脉）→金矿化蚀变。总体演化趋势是向酸性演化，形成富含成矿物质的岩浆期后热液，运移到有利地质构造位置发生金的沉淀
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| 关 键 词： | 金矿田 岩浆岩特征 岩浆演化 同源岩浆 滩间山 青海省 |
| 收稿时间： | 1997-07-07 |
CHARACTERISTICS OF MAGMATITE AND ITS RELATION TO GOLD MINERALIZATION OF TANJIANSHAN GOLD FIELD |
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| Guo Jiahui.CHARACTERISTICS OF MAGMATITE AND ITS RELATION TO GOLD MINERALIZATION OF TANJIANSHAN GOLD FIELD[J].Geology and Resources,1998,7(2):96-103. |
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| Authors: | Guo Jiahui |
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| Institution: | Shenyang Institute of Geology and Mineral Resources |
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| Abstract: | he magmatic rocks in Tanjianshan gold field are mainly intrusires with various features,which made up late Variscian Tanjianshan plagiogranite porphyry complex. The rocks of the complex are the product of comagma during different evolution stages. The complex is commonly altered. The mineralizing alteration is especially strong where the controlling faults cut through. Some of them form orebodies. The evolution sequence of magmatic rocks and gold mineralizing is:plagioaplite or graniteaplite→plagiograniteporphyry(main stage)→quartz diorite(stock)and diorite porphyrite porphyrite(vein)→minette(vein)→graniteporphyry(vein)→gold mineraling alteration. The general tendency is towards acidic evolution,forming postmagmatic hydrothermal rich in materials,migrating to favourable geologic structure site and precipitating gold. |
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| Keywords: | goldfield magmatite characteristics magmatic evolution comagma Tanjianshan Qinghai Province |
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