| 西秦岭温泉钼矿床矿化特征与蚀变分带 |
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| 引用本文： | 周俊烈,韩海涛. 西秦岭温泉钼矿床矿化特征与蚀变分带[J]. 世界地质, 2010, 29(2): 248-255. DOI: 10.3969/j.issn.1004-5589.2010.02.010 |
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| 作者姓名： | 周俊烈 韩海涛 |
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| 作者单位： | 1. 甘肃有色地质勘查局天水总队，甘肃天水741025; 2. 中南大学地学与环境工程学院，长沙410083; 3. 甘肃省有色地质调查院，兰州730000 |
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| 基金项目： | 甘肃北秦岭温泉及其外围铜钼矿调查评价 |
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| 摘 要： | 西秦岭温泉斑岩型钼矿位于北秦岭加里东褶皱带西北。经光片及薄片鉴定、X--衍射分析、岩矿石化学全分析和稀土元素分析等研究,石英脉中的辉钼矿化、黄铁矿化及黄铜矿化是矿床的主要矿化;围岩蚀变主要是硅化、沸石化及红色泥化。根据矿床地质、围岩蚀变和地球化学特征等,将围岩蚀变分为3个带,即砖红色沸石化蚀变带(Ⅰ)、强硅化蚀变带(Ⅱ)和弱硅化蚀变带(Ⅲ),其中Ⅰ、Ⅱ带为主要找矿标志。
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| 关 键 词： | 温泉斑岩型钼矿 矿化特征 围岩蚀变 找矿标志 西秦岭 |
Mineralization characteristics and alteration zoning of Wenquan molybdenum deposit in West Qinling |
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| ZHOU Jun-lie,HAN Hai-tao. Mineralization characteristics and alteration zoning of Wenquan molybdenum deposit in West Qinling[J]. Global Geology, 2010, 29(2): 248-255. DOI: 10.3969/j.issn.1004-5589.2010.02.010 |
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| Authors: | ZHOU Jun-lie HAN Hai-tao |
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| Affiliation: | 1. Tianshui General Team of Gansu Nonferrous Metal Geological Exploration Bureau，Tianshui 741025，Gansu，China; 2. College of Geoscience and Environmental Engineering，Central South University，Changsha 410083，China; 3. Gansu Geological Survey Institute of Nonferrous Metal，Lanzhou 730000，China |
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| Abstract: | Wenquan porphyry molybdenum deposit of West Qinling is located in northwestern Caledonian fold belt of North Qinling. The identification of polished section and slides,X--diffraction analysis,chemical total analysis of rocks and minerals and REE analysis show that molybdenite,pyrite and chalcopyrite mineralizations in quartz vein are the main types of mineralization in the deposit; while silicification,laumontite and red argillation are the main types of wall-rock alteration. According to the characteristics of deposit geology,wall-rock alteration and geochemistry,the wall-rock alteration can be divided into three zones,including brick red zeolitization （gradeⅠ）, strong silification （gradeⅡ） and weak silification （gradeⅢ）,in which the gradeⅠand Ⅱ zones are the main indicators for prospecting. |
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| Keywords: | Wenquan porphyry molybdenum deposit mineralization characteristics wall-rock alteration prospecting indicator West Qinling |
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