| 桂北上-下坎矿区金矿地质与遥感找矿 |
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| 引用本文： | 成永生,胡振光.桂北上-下坎矿区金矿地质与遥感找矿[J].矿业研究与开发,2009(5):21-24. |
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| 作者姓名： | 成永生 胡振光 |
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| 作者单位： | 中南大学信息物理工程学院;中南大学资源与安全工程学院;广西华锡集团有限责任公司;中南大学地学与环境工程学院 |
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| 基金项目： | 中国博士后科学基金资助(20090451105);广西华锡集团有限责任公司博士后工作站科研项目资助 |
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| 摘 要： | 在对上-下坎金矿成矿条件、地质特征及成矿规律研究的基础上,利用卫星遥感影像对研究区遥感找矿信息进行了提取和遥感影像特征分析研究;应用主成分分析方法对遥感图像进行了处理,并采用(TM5/TM7)/(TM3/TM4)的比值处理方法,将图像中的绿色植被信息单独提取,增强了找矿指示信息。综合遥感影像所反映的信息,对研究区线性构造和环形构造进行了综合解译,结合矿化蚀变信息对成矿有利地带进行了预测,指明了下一步的找矿方向。
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| 关 键 词： | 遥感影像 线性构造 环形构造 蚀变信息 成矿预测 |
Geology and Remote-sensing Exploration of Gold Deposit in Shang-xiakan Region of Northern Guangxi |
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| Cheng Yongsheng and Hu Zhenguang.Geology and Remote-sensing Exploration of Gold Deposit in Shang-xiakan Region of Northern Guangxi[J].Mining Research and Development,2009(5):21-24. |
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| Authors: | Cheng Yongsheng and Hu Zhenguang |
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| Affiliation: | 1.School of Info-physics and Geomatics Engineering,Central South University,Changsha,Hunan 410083,China;2.School of Resources and Safety Engineering,Central South University,Hunan 410083,China;3.Guangxi Huaxi Co.,Ltd.,Liuzhou,Guangxi 545006,China;4.School of Geoscience and Environmental Engineering,Central South University,Changsha,Hunan 410083,China) |
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| Abstract: | On the basis of study on metallogenic geological conditions,geological characteristics and metallogenc law of shang-xiakan gold deposits,the remote sensing information for ore prediction in the studied area was extracted from the remote sensing image,the characteristics of remote sensing image was analyzed and studied,remote sensing image was processed with principal components analysis.The information of green vegetation was extract in the form of(TM5/TM7)/(TM3/TM4) band-ratio for enhancing the mineralization information.After synthesizing the information of the remote-sensing image,the linear structure and ring-shaped structure in the studied area were interpreted and extracted.Finally,combining with the mineralization-alteration information,the zones which are favorable to mineralization were forecasted,the further prospecting direction in this region was pointed out. |
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| Keywords: | Remote-sensing image Linear structure Ring-shaped structure Alteration information Metallogenic prognosis |
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