| 王瑞军,孙永彬,李名松,汪冰,董双发.新疆阿尔金盘龙沟金矿高光谱蚀变矿物找矿标志研究[J].地质找矿论丛,2017,32(2):300-311 |
| 新疆阿尔金盘龙沟金矿高光谱蚀变矿物找矿标志研究 |
| Hyperspectral alteration mineral prospecting marks of Panlonggou gold deposit, Aerjin, Xinjiang |
| 投稿时间：2016-03-23 |
| DOI：10.6053/j.issn.1001-1412.2017.02.017 |
| 中文关键词: 航空和地面高光谱 蚀变矿物 找矿标志 温压条件 盘龙沟金矿床 新疆 |
| 英文关键词:Airborne and ground hyperspectral alteration mineral ore-prospecting criteria temperature-pressure condition Panlonggou gold deposit Xinjiang |
| 基金项目:中国地质调查局项目（编号：12120113073100；编号：12120115040301）资助 |
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| 中文摘要: |
| 高光谱遥感技术是近年来兴起并逐渐成熟的蚀变矿物研究方法。盘龙沟金矿床围岩蚀变发育，主要蚀变类型包括硅化、绿泥石化、绢云母化、碳酸盐化、钠长石化、褐铁矿化等，蚀变与金矿化关系密切。文章通过航空高光谱遥感数据和地面光谱数据，提取和诊断盘龙沟金矿床的不同地段、不同地质体的蚀变矿物信息，研究分析金矿区的航空和地面高光谱蚀变矿物、蚀变矿物组合特征，以及矿区围岩蚀变特征，总结航空和地面光谱蚀变矿物分带找矿标志规律，结合金矿床地质矿产特征，系统剖析金矿床的综合找矿标志特征，构建盘龙沟金矿床高光谱蚀变矿物找矿标志；同时依据绢云母、绿泥石的诊断光谱，研究两种蚀变矿物的光谱变化特征，分析了金矿床围岩蚀变的形成条件和蚀变矿物的温压条件，进而初步推测盘龙沟金矿床为中低温热液型金矿，其矿体与围岩形成的环境条件不同。 |
| 英文摘要: |
| Hyperspectral remote sensing technology has gradually matured and prevailed in recent years. Wall rock alterations are developed in Panlonggou gold deposit. Silicification, chloritization, sericitization, carbonatization, albitization, limonitization are the main alteration types which are closely associated with gold mineralization. Airborne hyperspectral remote sensing data and the ground spectral data are used to diagnose and extract alteration mineral information of different domains and different geological bodies of Panlonggou gold deposit and to study and analyze characteristics of the Airborne and ground hyperspectral alteration minerals and the alteration mineral assemblage and to make systematic analysis of integrated prospecting marks of the deposit and to establish prospecting marks of the hyperspectral alteration minerals. The diagnosed spectral of sericite and chlorite are used to study characteristics of their spectral change and analyze condition of the wall rock alteration and temperature and pressure condition of the alteration minerals then suggest that Panlonggou Au deposit is a medium-low temperature epithermal deposit and ore body and the wall rock formed under different environments and conditions. |
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