土屋铜矿近红外光谱找矿模型建立  

NEAR INFRARED SPECTRUM EXPLORATION MODEL OF TUWU COPPER DEPOSIT

作　　者：孙莉[1,2] 肖克炎[2] 陈明[2] 

机构地区：[1]中国地质大学,北京100083 [2]中国地质科学院矿产资源研究所,北京100037

出　　处：《新疆地质》2011年第2期234-237,共4页Xinjiang Geology

摘　　要：近红外光谱波长780-2500nm，据矿物特征吸收光谱可区分不同矿物和同一矿物不同结晶度，利用近红外光谱技术可进行热液矿床蚀变矿物研究．土屋铜矿围岩蚀变为青磐岩化、绢云母化、硅化和黑云母化，采用便携式近红外光谱矿物分析仪对土屋铜矿探槽所取样品和钻孔样品进行测试，总结石英、蒙脱石、绿帘石、绿泥石等蚀变矿物及近红外光谱参数空间变化规律，建立近红外光谱找矿模型．The range of wavelength of near infrared spectrum is from 780nm to 2500nm.Differet minerals and crystallization degree of the same mineral can be distinguished by the characteristic absorption spectrum. Alteration minerals of hydrothermal deposit can be studied by near infrared technique and the result can be used to explore mineral deposit.The alterations of Tuwu copper deposit are propylitization,sericitization, silification, and biotitezation,Samples from trenches and boreholes of Tuwu were analyzed by portable near infrared spectrum mineral analyzer. The regulations of the distribution of quartz,montmorillonite,epidote,chlorite and the variation of infrared spectrum parameters were concluded. Based on that, the infrared spectrum prospecting model was built.

关 键 词：土屋 近红外 蚀变矿物 模型 

分 类 号：P618.41[天文地球—矿床学]