| 李建峰.云南正兴铜多金属矿矿床特征及成矿机制[J].矿产勘查,2018,9(3):381-387 |
| 云南正兴铜多金属矿矿床特征及成矿机制 |
| Characteristics and metallogenic mechanism of the copper polymetallic ore deposits in Zhengxing area, Yunnan |
| 投稿时间：2017-08-28 |
| DOI： |
| 中文关键词: 铜多金属矿床 矿床特征 成矿机制 三江成矿带 云南 |
| 英文关键词: copper polymetallic ore, deposit characteristic, metallogenic mechanism, Sanjiang metallogenic belt,Yunnan |
| 基金项目: |
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| 摘要点击次数: 1633 |
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| 中文摘要: |
| 云南正兴铜多金属矿研究区位于我国云南省兰坪—思茅盆地内,属三江南段,是我国南方“三江成矿带”的重要组成部分。通过对研究区综合分析认为,该区构造活动强烈,构造迹象明显,火山活动也较发育。利用地质综合手段明确了构造的深部特征如产状、切割深度、属性等,以及区内岩浆岩发育形态及规模等。确定了矿体赋存于普洱中轴断裂两侧的次级构造带内,受成矿机制影响矿体形态呈细脉状、条带状、透镜状、鸡窝状等。该矿床成因主要为受构造与地层联合控制的构造热液蚀变型矿床。通过对其研究建立了正确的成矿模式,以期指导该区及整个区块内的下步找矿工作。 |
| 英文摘要: |
| The research target, Zhengxing copper polymetallic area, is located in Lanping-Simao basin which sits at the southern part and is also an import component of the “Sanjiang metallogenic belt” in Yunnan Province of China. Based on the comprehensive analysis, it is indicated that the area had experienced strong tectonic and volcanic episodes with some obvious corresponding signs left. Combined with multiple geological survey methods some tectonic features in deep such as attitude, depth of cut and properties have been defined, as well as the pattern and scale of the igneous rock. It is suggested that ore bodies are mainly hosted at the secondary tectonic systems on both sides of the Central Axis Fault and occur at fine vein, banded, lenticular or nest patterns due to the impact of the mineralization mechanism. On the basis of the synthetical study, it is concluded that the deposits can be attributed to the tectonic hydrothermal alteration type which are chiefly controlled by structure and stratum. The probable metallogenic model, which has tremendous helpful guidance to the exploration, is established according to the systemic study. |
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