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| 云南宝兴厂金矿床地质特征及成因 | |
| 引用本文： | 李汉光,郭晓东,王绍明,皮清明,和正中.云南宝兴厂金矿床地质特征及成因[J].矿床地质,2008,27(5):587-595. |
| 作者姓名： | 李汉光 郭晓东 王绍明 皮清明 和正中 |
| 作者单位： | 1. 中国地质大学,北京,100083;中国人民武装警察部队黄金第三总队,四川,成都,610036 2. 中国人民武装警察部队黄金地质研究所,河北,廊坊,065000 3. 中国人民武装警察部队黄金第十支队,云南,昆明,650111 4. 中国人民武装警察部队黄金第三总队,四川,成都,610036 |
| 基金项目： | 国家科技攻关计划，武警黄金指挥部资助项目 |
| 摘 要： | 文章总结了云南宝兴厂金矿区地质特征,划分了成矿期和成矿阶段,通过对硫、铅、氢氧同位素特征的研究,认为下奥陶统向阳组第四岩性段的碎屑岩为金成矿的矿源层。多期次的构造-岩浆活动,形成了该区多期次、多阶段、多样式、多矿种的矿床组合类型。矿床类型主要有:斑岩型、石英脉型、构造蚀变岩型、红土型等。该金矿的形成在时间、空间上与喜马拉雅期的富碱斑岩密切相关。 |
| 关 键 词： | 地质学 金矿床 地质特征 物理化学条件 成矿机理 云南 |
Geological characteristics and genesis of Baoxingchang gold ore district in Yunnan Province |
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| LI HanGuang,GUO XiaoDong,WANG ShaoMing,PI QingMing,HE ZhengZhong.Geological characteristics and genesis of Baoxingchang gold ore district in Yunnan Province[J].Mineral Deposits,2008,27(5):587-595. | |
| Authors: | LI HanGuang GUO XiaoDong WANG ShaoMing PI QingMing HE ZhengZhong |
| Abstract: | Located in the north of the Ailaoshan ore-forming belt, the Baoxinchang gold deposit has its unique geotec-tonic location that has caused complex metallogenic geological conditions and frequent structural and magmatic activities. The formation of the gold deposit is closely related to Himalayan alkali-rich porphyry both in time and in space. This paper has summed up geological characteristics of this area and made a division of the ore-forming phases and stages. S, Pb, H, O isotope characteristics suggest that clastic rock of 4th lithologic member of Lower Ordovician Xiangyang Group seems to be the source bed of gold mineralization. Multiple phases of struc-tural-magmatic activity has resulted in the complexity of deposit assemblage types in this area characterized by multi-phase, multi-stage, diversity and multiple mineral species. Mineral deposits are mainly of porphyry, quartz-veined, tectonically-altered rock and laterite types. |
| Keywords: | geology gold deposit geological characteristics physical-chemical conditions metallogenic mechanism Yunnan |
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