近红外光谱分析在毕力赫金矿预测中的应用  

The Application of Near-Infrared Spectral Analysis in Exploration of Gold Mine in Bilihe

作　　者：孟恺[1,2] 申俊峰[1,2] 卿敏[3] 吴学丽[1,2] 雎程晨[1,2] 刘倩[1,2] 

机构地区：[1]中国地质大学(北京)地球科学与资源学院地质过程和矿产资源国家重点实验室,北京100083 [2]中国地质大学(北京)深部过程与探测技术教育部重点实验室,北京100083 [3]武警黄金地质研究所,河北廊坊065000

出　　处：《矿物岩石地球化学通报》2009年第2期147-156,共10页Bulletin of Mineralogy, Petrology and Geochemistry

摘　　要：近红外矿物分析技术在澳大利亚、加拿大等国已经成为矿产勘察的主要技术手段之一,利用该技术可以快速识别蚀变矿物及其组合,提取与成矿有关的重要信息。本次工作的目的是寻找内蒙古毕利赫金矿的接替资源。利用南京地质矿产研究所研制的BJKF-1型近红外矿物分析仪勘查了毕利赫金矿区的蚀变矿物。结果表明,该仪器能有效地识别蒙脱石、伊利石、次生石英、绢云母和高岭石等蚀变矿物,依据其特征吸收峰峰位和强度判断蚀变矿物的分布特点。根据上述五种蚀变矿物分布特点预测该区南西部、北西部和矿区26号脉的北西—南东延伸部位属于蚀变较强地区,为矿化有利部位,值得进一步勘查。Near-Infrared Spectral Mineral Analysis technology has already become one of the most important methods in the mineral exploration in the developed countries, such as Australia, Canada and US. This technology can rapidly identify alteration minerals and their combinations, and such can reveal significant information about mineralization. A BJKF-1 type Near-Infrared Spectral Mineral Analyzer, made by Nanjing Institute of Geology ＆ Mineral Resources, was used to investigate alteration minerals collected from Bilihe gold mine in Inner-Mongolia. The resuits indicated that this analyzer can efficiently recognize 5 types of alteration mineral, montmorillonite, illite, quartz, sericite, kaolinite, and the distribution characteristics of the alteration minerals can be estimated by the location of absorptive peaks and the intensity of peak values. According to the distribution characteristics of the 5 kinds of alteration mineral, we predicted that the Southwestern, the Northwestern of Bilihe gold mine and the NWSE extension area of the 26th lode are the areas of stronger alteration and of being apt to mineralize.

关 键 词：近红外矿物分析 蚀变 内蒙古毕力赫 

分 类 号：P618.51[天文地球—矿床学]