摘要
以西藏墨竹工卡县驱龙斑岩铜矿床为例,利用Hyperion高光谱数据对矿区蚀变分带信息进行提取,确定了针铁矿、磁黄铁矿、高岭石、绿泥石和铜蓝等5类端元矿物。结果表明,在Cu I及其外围提取的蚀变矿物由斑岩体向外为针铁矿+高岭石→针铁矿+高岭石+磁黄铁矿→绿泥石;在Cu II及其外围提取的蚀变矿物由斑岩体向外为针铁矿+高岭石→针铁矿+高岭石+绿泥石→绿泥石,矿物分布情况与驱龙铜矿围岩蚀变分带基本一致,利用Hyperion数据能够较好地提取驱龙铜矿的蚀变分带信息。
This paper takes the Qulong porphyry copper deposit in Mozhugongka County in Tibet Autonomous Region as an example and extracts five endmember minerals：goethite, pyrrhotite, kaolinite, chlorite and covellite by using hyperion hyperspectral remote sensing data in mining alteration zoning information. The result shows that：in CuI and its periphery,alteration minerals extract from porphyry outward goethite ＋ kaolinite→goethite → kaolinite ＋ pyrrhotite--→chlorite, in CuII and its periphery, alteration minerals extract from porphyry outward goethite ＋ kaolinite→goethite ＋ kaolinite ＋ chlorite→chlorite. The distribution of mineral is same as the Qulong copper wall rock alteration zoning. It comes to the conclusion that the hyperion data can extract reliable alteration zoning information of the Qulong porphyry copper.
出处
《国土资源科技管理》
2015年第6期118-124,共7页
Scientific and Technological Management of Land and Resources
基金
国家自然科学基金项目(41202233)
关键词
HYPERION
高光谱遥感
蚀变分带
驱龙铜矿
端元波谱
Hyperion
Hyperspectral remote sensing
Alteration zoning
Qulong copper deposit
Endmemberspectrum
