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| 西藏尤卡朗铅银矿成矿构造初步研究 | |
| 引用本文： | 冯志兴.西藏尤卡朗铅银矿成矿构造初步研究[J].地质与勘探,2010,46(4):628-633. |
| 作者姓名： | 冯志兴 |
| 作者单位： | 1. 中国地质大学资源学院,武汉,430074;青海西部矿业地勘公司,西宁,810016 2. 中国地质大学资源学院,武汉,430074 3. 青海西部矿业地勘公司,西宁,810016 |
| 摘 要： | 西藏尤卡朗铅银矿床处于西藏冈底斯北侧当雄-嘉黎银铅锌多金属成矿带上,矿体产于中侏罗统拉贡塘组受岩浆热变质的砂泥质岩中。矿区北部出露燕山至喜马拉雅期中酸性侵入岩体,可能与本区铅银成矿作用有直接的关系。铅银矿体产于断裂构造带中,受多期构造活动的控制。矿体中常见脉状穿插和角砾状构造,多组构造裂隙互相交叉形成不规则网脉。综合研究矿区中小型成矿构造特征,通过本区构造应力场分析表明,早期应力场反映北部岩体向南上侵,晚期构造应力场转变形成有利的含矿构造,进一步形成向南西倾伏的管状矿体,从构造控矿角度探讨了本区进一步找矿方向。 |
| 关 键 词： | 控矿构造 应力分析 铅银矿 尤卡朗 西藏 |
| 收稿时间： | 3/8/2010 12:00:00 AM |
| 修稿时间： | 2010/6/28 0:00:00 |
A Preliminary Study on Mineralizational Structure of the Youqialang Lead-Silver Deposit in Tibet |
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| FENG Zhi-xing.A Preliminary Study on Mineralizational Structure of the Youqialang Lead-Silver Deposit in Tibet[J].Geology and Prospecting,2010,46(4):628-633. | |
| Authors: | FENG Zhi-xing |
| Institution: | China University of Geosciences,Wuhan |
| Abstract: | The Youqialang lead-silver deposit lies in the Dangxiong-Lhari Pb-Zn-Ag polymetallic ore belt,north of Gandis,Tibet.The ore bodies were produced in the sandy argillite,that was affected by magmatic thermal metamorphism,in the Lagongtang Group of middle Jurassic series.Acid intrusions of the Yanshan to Himalayan period exposed in the north of the mine may be related to lead-silver mineralization.The lead-silver ore bodies produced in the fault belt,controlled by the multi-period tectonic activity,are general... |
| Keywords: | ore-controlling structure stress analysis lead-silver deposit Youqialang Tibet |
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