| 岩石中金和铅在热液流体中的浸出实验研究 |
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| 引用本文： | 林尔为,贾叶飞,卢民杰.岩石中金和铅在热液流体中的浸出实验研究[J].吉林大学学报(地球科学版),1992(1). |
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| 作者姓名： | 林尔为 贾叶飞 卢民杰 |
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| 作者单位： | 长春地质学院测试中心
(林尔为),长春地质学院地质系
(贾叶飞),长春地质学院地质系(卢民杰) |
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| 摘 要： | 我国北方金矿主要受变质岩,花岗岩和构造条件控制,即一般公认的“三位一体”的成矿模式,但成矿元素是由花岗岩还是变质岩提供的则是值得进一步研究的问题。此外,各金矿通常伴有铝的分散晕,且铅同位素组成在区域上多成线性展布。研究后认为:花岗岩和变质岩均可作为金矿的矿源岩石。铅同位素的线性展布不能用铅演化的二阶段模型加以解释,而应作为混合线来说明。
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| 关 键 词： | 岩石中金丰度 金和铅的热液提取率 铅同位素 |
EXPERIMENTAL RESEARCH ON LEACHING OUT GOLD AND LEAD FROM ROCKS IN HYDROTHREMAL SYSTEM |
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| Lin Erwei Jia Yiefei Lu Minjie.EXPERIMENTAL RESEARCH ON LEACHING OUT GOLD AND LEAD FROM ROCKS IN HYDROTHREMAL SYSTEM[J].Journal of Jilin Unviersity:Earth Science Edition,1992(1). |
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| Authors: | Lin Erwei Jia Yiefei Lu Minjie |
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| Institution: | Lin Erwei Jia Yiefei Lu Minjie(Measure and Analysis Central) (Deparment of Geology ) |
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| Abstract: | Most gold depodits distributing in the northern China are mainly connected with metamorphic rocks ,granites and tectonic conditions,which case is universally regarded as metallogenetic model of "trinity" . The source of metallogenetic elements .however ,is still a nonsolved question. It is not clearly known whether the el- ements provided by metamorphic rocks or granetes. Many of the gold deposits were normally accompanied by dispersion halo of lead. According to our research,the isotopic composition of lead is linearly distributed in the reginal scale. The authors suggest that granites and metamorphic rocks can be regarded as the source of gold deposits. The linear distribution of lead isotope can not be explained by its two-stage evolution model,but can be interpreted as the mixture of lead both from metamorphic rocks and granites. |
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| Keywords: | gold abundance in rocks rate of extraction of gold and lead in thermal liquid isotope of lead |
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