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依据前人有关资料，初步研究总结了甘肃北山南带主要岩（矿）石反射波谱曲线特征及地质意义，探讨区内与金矿化密切相关的岩石、构造及热流蚀变带在遥感图像上的主要特征及解译标志，指出该地区ＴＭ图像彩色合成最佳波段组合模式为：ＴＭ７（红）＋ＴＭ５（绿）＋ＴＭ４（蓝），为进行图像功能处理和计算机提取蚀变信息等遥感技术方法的应用研究提供了依据
Based on the previous data, the characteristics and geological significance of the rock reflection spectroscopy curves of the main rocks in the northern Beishan Mountain of Gansu Province are summarized and discussed. The rock, structure and heat flow alteration zones closely related to gold mineralization are discussed in the remote sensing images The main characteristics and interpretations of TM images are pointed out. The best combination mode of TM color images is TM7 (red) + TM5 (green) + TM4 (blue). The remote sensing techniques such as image processing and computer- The application research provided the basis