| 西藏驱龙斑岩型铜(钼) 矿床矿化特征及远景预测 |
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| 引用本文： | 张金树,多吉,何政伟,唐菊兴.西藏驱龙斑岩型铜(钼) 矿床矿化特征及远景预测[J].世界地质,2009,28(4):460-466. |
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| 作者姓名： | 张金树 多吉 何政伟 唐菊兴 |
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| 作者单位： | 1. 成都理工大学地球科学学院成都610059; 2. 西藏自治区地质调查院, 拉萨850000; 3. 西藏自治区地勘局, 拉萨850000; 4. 中国地质科学院资源研究所, 北京100037 |
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| 基金项目： | 国家科技支撑项目，国家重点调查项目 |
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| 摘 要： | 驱龙矿床位于西藏冈底斯成矿带东段, 成矿条件优越。该矿床为一典型斑岩型矿床, 其铜 (钼) 矿化与喜山期黑云母花岗闪长斑岩、石英二长花岗斑岩时空及成因关系密切, 具典型的细脉浸染型矿化特征, 围岩蚀变发育且具面型分带现象。区域构造演化、成岩成矿时代表明, 冈底斯成矿带内的斑岩型矿化发生于印度与亚洲板块的后碰撞阶段挤压向伸展的转换期。综合地质、化探与遥感等找矿信息, 预测驱龙矿床找矿潜力巨大, 驱龙东段是进一步勘查工作的首选靶区, 矿体剥蚀程度低, 具较大埋深( > 1 000 m) 。强调斑岩型矿化的同时, 应注意岩体接触带附近矽卡岩型以及不同围岩裂隙中的脉型多金属矿的找矿工作。
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| 关 键 词： | 斑岩型矿床 矿化特征 远景预测 驱龙 西藏 |
| 收稿时间： | 2009-06-08 |
| 修稿时间： | 2009-10-21 |
Mineralization characteristics and prospective forecasting of Qulong porphyry copper (molybdenum) deposit in Tibet |
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| ZHANG Jin-shu,DUO Ji,HE Zheng-wei,TANG Ju-xing.Mineralization characteristics and prospective forecasting of Qulong porphyry copper (molybdenum) deposit in Tibet[J].World Geology,2009,28(4):460-466. |
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| Authors: | ZHANG Jin-shu DUO Ji HE Zheng-wei TANG Ju-xing |
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| Institution: | 1. College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China; 2. Tibet Institute of Geological Survey, Lhasa 850000, China; 3. Tibet Bureau of Geological Survey, Lhasa 850000, China; 4. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China |
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| Abstract: | Qulong copper (molybdenum) deposit located in eastern Gangdise metallogenic belt with favorable ore-forming condition. Qulong deposit belongs to typical porphyry ones, and its copper-molybdenum mineralization has close spatial-temporal and genetic relationship swith biotite granodiorite porphyry and adamellite granite porphyry in Xishan Formation, which has veinlet-disseminated type features, and togetherwith the intensive wall-rock alteration and facial type zonation. According to regional tectonic evolution and theirmetallogenic age, porphyrymineralization in the Gandise belt were formed in the conversion period from post collisional comp ression to extension between Indian and Asian plates. Combined with geology, geochemistry exploration as well as remote sensing, it is demonstrates that the eastern Qulongmine is the most favorable ore-finding target, its denudation degree ofmineralization is low and buried depth more than 1 000 m. Besides the porphyrymineralization, skarn type polymetallic ore around contact zones and vein type polymetallic ore in wall rock cracks are worthy of paying attention to. |
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| Keywords: | porphyry deposit mineralization characteristic perspective forecasting Qulong Tibet |
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