花岗岩型铀矿床水云母化的诊断性光谱特征  

Diagnostic spectral characteristics of damouritization in granite type uranium deposit

作　　者：何建国[1] 毛玉仙[1] 李建中[1] 汪昌亮[1] 祝民强[2] 冯明月[1] 戎嘉树[1] 饶明辉[2] 

机构地区：[1]核工业北京地质研究院,北京100029 [2]东华理工大学,江西抚州344000

出　　处：《铀矿地质》2008年第4期250-256,共7页Uranium Geology

基　　金：“中国遥感卫星中国铀矿床光谱特征与最佳谱段选择研究”成果的一部分

摘　　要：揭示铀矿床各种蚀变类型的光谱特征是最佳铀矿勘查遥感谱段选择的前提,是利用成像光谱技术进行铀矿蚀变带遥感填图的基础。文章以201铀矿床为例对花岗岩型铀矿床水云母化(实际为伊利石化)的光谱特征进行研究,提取水云母单矿物的诊断性光谱特征,对其主要吸收峰的成因进行分析,发现此水云母化的光谱特征与国外光谱库公布的伊利石的光谱特征具有显著区别。Spectral characteristics of different alteration type in uranium deposit are the prerequisite of selecting remote sensing spectral bands for uranium reconnaissance and exploration. It is also a basis for mapping alteration zone using imaging spectral data. Taking the No. 201 uranium deposit as example, the paper is focused on the spectral characteristics researching of damouritization in granite type uranium deposite. Through extracting diagnostic spectral feature of damourite and analyzing the reason causing absorption valley, it was found that spectral characteristics of damouritization in Chinese uranium deposit is different from that of illite in the spectral library published abroad.

关 键 词：铀矿床 水云母 端元光谱 诊断性光谱特征 光谱吸收特征参数 

分 类 号：TP751.2[自动化与计算机技术—检测技术与自动化装置]