| 李忠烈,张晓永,成静亮,王明国,王小高.遥感技术在智利超大型斑岩型铜矿勘查中的应用研究[J].矿产勘查,2012,3(4):549-557 |
| 遥感技术在智利超大型斑岩型铜矿勘查中的应用研究 |
| Application of remote sensing technology in ultra-large type porphyry copper in Chile |
| 投稿时间：2012-03-09 |
| DOI： |
| 中文关键词: 遥感技术 智利 斑岩铜矿 找矿标志 |
| 英文关键词: remote sensing porphyry copper deposit Chile prospecting criteria |
| 基金项目: |
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| 中文摘要: |
| 作者运用ETM遥感数据,对智利北部的丘基卡马塔、布兰卡、科亚瓦西及埃斯康迪达等世界级超大型斑岩铜矿床进行了信息处理, 经过对矿床地质特征和遥感特征分析,选择了1、4、5、7波段进行K-L变换,取其第三或第四主成分来获取富含羟基矿物的“羟基图像”。结果发现羟基异常与丘基卡马塔矿床、埃斯康迪达矿床吻合较好,与布兰卡矿床、科亚瓦西矿床也有对应的吻合关系。作者分析了其中的原因,并指出羟基异常是寻找斑岩型铜矿床的重要标志,其成果对寻找大型超大型斑岩铜矿床具有指导意义。 |
| 英文摘要: |
| The authors deal with the ETM remote sensing data obtained from several large porphyry copper deposits such as Chuquicamata, Quebrada Blanca, Collaguasi and La Escondida. Wave bands 1,4, 5 and 7 are used to do K-L transformation, from them the third or fourth principal components are chosen to signal hydroxyl-bearing minerals. The results show that the hydroxide exception at Chuquicamata and La Escondida deposits accurately corresponds with the mineralization. Similar scenarios can be also observed at the Blanca and Collaguasi deposits. The authors propose that the hydroxide exception is useful to target porphyry copper deposits. |
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