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
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.
刘文兰, 张微. 遥感构造蚀变异常信息提取及找矿预测 ——以老挝为例 [J]. 国土资源遥感, 2012, 24(2): 68-74.
LIU Wen-lan, ZHANG Wei. Remote Sensing Structural Alteration Information Extraction and Ore Prognosis: A Case Study of Laos. REMOTE SENSING FOR LAND & RESOURCES, 2012, 24(2): 68-74.
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