地质通报2018,Vol.37Issue(2):446-457,12.
基于短波红外技术的西藏多龙矿集区铁格隆南矿床荣那矿段及其外围蚀变填图-勘查模型构建
摘要
Abstract
The discovery of the Rongna deposit was a breakthrough in 2013.This deposit was considered as the porphyry-epither-mal type deposit,because alteration minerals occur in the surface rock samples which were measured by shortwave infrared and geo-chemical technique;nevertheless,they are mainly muscovite and chlorite.These minerals form a characteristic alteration system from the outer phyllic to propylic zone.The measuring of the drill cores ZK0804,ZK1604,ZK2404,ZK3204 with the instrument ASD re-vealed that abundant minerals like alunite,kaolinite and muscovite are existent and coexist with copper.From ZK804 to ZK3204,the abundance of alunite decreases and disappears in ZK3204,but muscovite increases.The combination characteristics of alteration min-erals can illustrate the deposit type characterized by the transition from epithermal deposit to porphyry deposit.According to the sur-face and underground mineral distribution of rock samples,a model about porphyry-epithermal deposit was constructed on the basis of shortwave infrared technique which shows the spectral and type variations of minerals and distribution features. The result ob-tained by the authors is a good reference for the prospecting with the shortwave infrared technique.关键词
多龙/短波红外/勘查模型/蚀变填图Key words
Duolong/shortwave infrared technique/prospecting model/alteration mapping分类
天文与地球科学引用本文复制引用
郭娜,史维鑫,黄一入,郑龙,唐楠,王成,伏媛..基于短波红外技术的西藏多龙矿集区铁格隆南矿床荣那矿段及其外围蚀变填图-勘查模型构建[J].地质通报,2018,37(2):446-457,12.基金项目
国土资源部公益性行业科研专项《西藏多龙整装勘查区高光谱勘查模型示范及矿田构造研究》(编号:201511017-4)和国家自然科学基金项目《斑岩铜矿高光谱短波红外勘查模型构建研究》(批准号:41302265) (编号:201511017-4)