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国土资源遥感  2014, Vol. 26 Issue (4): 170-178    DOI: 10.6046/gtzyyg.2014.04.27
  技术应用 本期目录 | 过刊浏览 | 高级检索 |
西藏尕尔穷铜金矿多光谱遥感地质特征与外围找矿预测
张廷斌1,2, 唐菊兴3, 李志军1, 易桂花1,4, 别小娟1, 吴华5, 郭娜1,4, 张志1
1. 成都理工大学地球科学学院, 成都 610059;
2. 地学空间信息技术国土资源部重点实验室, 成都 610059;
3. 中国地质科学院矿产资源研究所, 北京 100037;
4. 数学地质四川省重点实验室, 成都 610059;
5. 西藏地质调查院, 拉萨 650000
Remote sensing geological characteristics and ore prediction in the Ga’erqiong Cu-Au deposit,Tibet
ZHANG Tingbin1,2, TANG Juxing3, LI Zhijun1, YI Guihua1,4, BIE Xiaojuan1, WU Hua5, GUO Na1,4, ZHANG Zhi1
1. College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China;
2. Key Laboratory of Geoscience Spatial Information Technology, Ministry of Land and Resources, Chengdu 610059, China;
3. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;
4. Geomathematics Key Laboratory of Sichuan Province, Chengdu 610059, China;
5. Tibet Institute of Geological Survey, Lhasa 650000, China
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摘要 尕尔穷铜金矿的发现是近年来在西藏班公湖-怒江成矿带西段取得的重要找矿突破之一,目前已发现的矿体类型主要有接触交代矽卡岩型和构造破碎带型2种。前人在该区的研究已经注意到矽卡岩与花岗斑岩的成生联系,斑岩型矿产的成矿潜力较大。该文利用多光谱遥感图像,以寻找区内斑岩型矿床为目标,开展了线性构造、环形构造、铁帽类色要素和围岩分带的遥感解译,基于主成分分析法提取了遥感羟基异常和铁染异常。研究结果表明: 区内主要发育NW-NNW向、NE-NNE向和近SN向3组线性构造; 环形构造按组合样式可划分为5个环形构造系; 铁帽类色要素与遥感异常较吻合; 区内围岩分带较复杂,但多属斑岩铜矿成矿的有利围岩。综合分析认为,5个环形构造系为进一步找矿的重点区域。
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路云阁
刘采
王姣
关键词 资源一号02C(ZY-102C)高分一号(GF-1)西藏矿山监测遥感    
Abstract:The discovery of the Ga'erqiong Cu-Au deposit is an important breakthrough of ore prospecting in western Bangong Lake-Nujiang River metallogenic belt. There are two types of orebodies discovered in this area: One is skarn type, and the other is structure-fracture zone type. Previous studies in this area noticed the genetic relation between granite porphyry and skarn. The authors hold that the Ga'erqiong area has a relatively large ore potential of porphyry deposits. In this paper, based on multi-spectral remote sensing data and aimed at finding new porphyry deposits, the authors carried out the interpretation of linear structure, circular structure, gossanand wall rock zoning, and conducted the extraction of ferric alterations and hydroxyl alterations by using principal component analysis method. The results show that there are NW-NNW trending, NE-NNE trending and nearly SN-trending linear structure groups developed in the study area. Circular structures can be classified into five circular structure systems according to the combined styles. Gossans are comparatively in agreement with mineralized alterations. The wall rocks are rather complicated, but they are favorable for copper mineralization in the Ga'erqiong copper deposit. It is considered that the circular structure systems are the key areas for further ore prospecting.
Key wordsZY-1 02C satellites    GF-1 satellites    Tibet    mine monitoring    remote sensing
收稿日期: 2013-09-13      出版日期: 2014-09-17
:  TP79  
基金资助:国家自然科学基金项目“西藏典型斑岩型铜矿床遥感蚀变信息重现性机理研究”(编号:41202233)、国土资源部公益性行业科研专项项目“班怒成矿带西段铜金成矿背景与成矿条件研究”(编号:201011013)、中国地质调查局地质调查项目“西藏矿产资源潜力评价”(编号:121201081325和1212011121023)和四川省教育厅项目“基于高光谱技术的班公湖怒江成矿带西段尕尔穷铜金矿蚀变矿物特征分析”(编号:14ZB0062)共同资助。
作者简介: 张廷斌(1978-),男,博士,副教授,主要从事遥感地质研究。Email:zhangtb@cdut.edu.cn。
引用本文:   
张廷斌, 唐菊兴, 李志军, 易桂花, 别小娟, 吴华, 郭娜, 张志. 西藏尕尔穷铜金矿多光谱遥感地质特征与外围找矿预测[J]. 国土资源遥感, 2014, 26(4): 170-178.
ZHANG Tingbin, TANG Juxing, LI Zhijun, YI Guihua, BIE Xiaojuan, WU Hua, GUO Na, ZHANG Zhi. Remote sensing geological characteristics and ore prediction in the Ga’erqiong Cu-Au deposit,Tibet. REMOTE SENSING FOR LAND & RESOURCES, 2014, 26(4): 170-178.
链接本文:  
https://www.gtzyyg.com/CN/10.6046/gtzyyg.2014.04.27      或      https://www.gtzyyg.com/CN/Y2014/V26/I4/170
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