| Technology Application |
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Remote Sensing Structural Alteration Information Extraction and Ore Prognosis: A Case Study of Laos |
| LIU Wen-lan1, ZHANG Wei2 |
1. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;
2. China Aero Geophysical Surney and Remote Sensing Center for Land and Resources, Beijing 100083, China |
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Abstract The extraction of remote sensing geological anomaly information is one of the important research methods in GARS. In this paper,taking Laos as an example and using such means as geometric rectification,image mosaicking,color composite,space transformation and image enhancement processing to the ETM+ image in the study area,the authors extracted the geological structural information. The interference information was removed by mask technique,and the iron staining and hydroxyl alteration information was extracted by using principal component analysis and threshold segmentation techniques. Five perspective areas for mineral exploration were delineated on the basis of a synthetic analysis of the multi-geoscience information. The results can provide a reference and effective means for accelerating the geological prospecting work in Laos.
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| Keywords
Yulong
porphyry copper deposit
circular structure
porphyry
the smallest prospecting area
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Issue Date: 03 June 2012
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[1] 赵鹏大,陈永清,刘吉平,等.地质异常成矿预测理论与实践[M].北京:地质大学出版社,1999.
[2] 张微,姚琪,钱俊锋,等.昌化—普陀断裂构造遥感分析及信息提取[J].应用基础与工程科学学报,2008,16(4):754-763.
[3] Hunt G R,Salisloury J W,Lenhoff C J.Visible and Near Infrared Spectra of Minerals and Rocks:IX.Basic and Ultrabasic Igneous Rocks[J].Modern Geology,1974,5(1):15-22.
[4] Ma J W.Methodology Study of Quickly Identifying Mineral Bearing Alterations from TM Data[J].Journal of Remote Sensing,1997,1(3):208-213.
[5] Loughlin W P.Principal Component Analysis for Alteration Mapping[C]//Proceedings of the English Thematic Conference on Geologic Remote Sensing.Denver,Colorado,USA,1991.
[6] 张玉君,曾朝铭,陈薇.ETM+(TM)蚀变遥感异常提取方法研究与应用——方法选择和技术流程[J].国土资源遥感,2003(2):44-49.
[7] 杨金中,方洪宾,张玉君,等.中国西部重要成矿带遥感找矿异常提取的方法研究[J].国土资源遥感,2003(3):14-18.
[8] Zhang Y J,Yang J M,Yao F J.The Potentials of Multi-spectral Remote Sensing Techniques for Mineral Prognostication—Taking Mongolian Oyu Tolgoi Cu-Au Deposit as an Example[J].Earth Science Frontiers,2007,14(5):63-69.
[9] Wang G W,Liang Y Q,Zhang S T.Hydrothermal Alteration Mapping Based on MPH and Fractal Technologies Using ASTER and ETM+ Data in Lushi Region,Henan Province,China[J].IEEE Transactions on Environmental Science and Information Application Technology(ESIAT),2010,1:762-765.
[10] 何国金,胡德永,陈志军,等.从TM图像中直接提取金矿化信息[J].遥感技术与应用,1995,10(3):51-54.
[11] 陈兵,汪雄武,杨尽.老挝Xiangkok地区金矿找矿前景浅析[J].华南地质与矿产,2009(1):36-42.
[12] 胡雄伟,吴良士.老挝人民民主共和国地质特征与区域成矿[J].矿床地质,2009,28(1):104-106.
[13] 陈永清,刘俊来,冯庆来,等.东南亚中南半岛地质及与花岗岩有关的矿床[M].北京:地质出版社,2010.
[14] Hunt G R.Electromagnetic Radiation:the Communication Link in Remote Sensing[J].Remote Sensing in Geology,1980(2):5-45.
[15] 张玉君,杨建民,陈薇.ETM+(TM)蚀变遥感异常提取方法研究与应用——地质依据和波谱前提[J].国土资源遥感,2003(4):30-37.
[16] 张微,杨金中,王晓红.基于特征地貌类型的湖州市第四纪地质遥感信息提取方法探讨[J].国土资源遥感,2009(3):46-48.
[17] 杨日红,于学政.藏东三江地区多金属矿产遥感信息综合找矿预测[J].地质与勘探,2005,41(3):59-60.
[18] Ambrams M J.Landsat-4 Thematic Mapper and Thematic Mapper Simulator Data for a Porphyry Copper Depost[J].Photogrammetric Engineering and Remote Sensing,1984,50(8):1171-1173.
[19] 张微,陈汉林,李启敏,等.高分辨遥感在杭州活断层探测中的应用[J].煤田地质与勘探,2007,35(3):10-14.
[20] 张微,陈汉林,姚琪,等.遥感技术在孝丰—三门湾活动断裂调查中的应用——以杭州地区为例[J].浙江大学学报:理学版,2008,35(1):111-116.
[21] 胡雄伟,吴良士.老挝人民民主共和国地质特征与区域成矿[J].矿床地质,2009,28(1):104-108.
[22] 刘世英,张微.青藏铁路沿线(东昆仑—沱沱河段)遥感找矿远景评价[J].国土资源遥感,2011(1):91-96.
[23] 张微,张伟,刘世英,等.基于核PCA方法的高分辨率遥感图像自动解译[J].国土资源遥感,2011(3):82-87. |
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2012,
Vol. 24
