在总结秘鲁南部地区斑岩铜矿成矿地质规律的基础上,分析了研究区控矿构造和赋矿岩层、矿化蚀变类型等成控矿地质特征；并根据研究区斑岩铜矿典型蚀变带蚀变矿物组合及其波谱特征,利用美国地质勘查局(USGS)波谱数据库,重建了斑岩铜矿典型蚀变带主要蚀变矿物在ASTER卫星数据B1～B9对应的反射率曲线,综合对比分析主要蚀变矿物的波谱曲线特征后,研发了基于ASTER数据B1467和B1348主成分分析模型,可分别提取典型蚀变带中泥化—绢英岩化类和青磐岩化蚀变矿物组合信息,并分别提取了研究区泥化—绢英岩化类和青磐岩化带蚀变矿物组合信息,为研究区斑岩型铜矿的遥感综合评价提供了重要的示矿标志；同时,采用人机交互遥感解译技术,获取了斑岩铜矿控矿构造、矿源层与赋矿岩石等示矿信息.最后,基于遥感技术获取的线性与环形控矿构造、矿源层与赋矿岩石、泥化—绢英岩化类和青磐岩化带蚀变矿物组合等遥感示矿信息,完成了研究区遥感找矿综合评价,圈定出遥感找矿有利区,经与已知斑岩铜矿床和物化探资料对比,以及高分辨卫星图像佐证,发现遥感评价结果具有很好的效果.%Based on ore-forming geological regularity of porphyry copper in the south of Arequipa Province,Peru,this essay analyzes the ore-forming and ore-controlling geological features such as ore controlling structure,ore-boring rocks, mineralization and alteration types in the studied area. A set of principal components analysis pattern is developed in which the information of argillic-and phyllic-altered and propylitization altered minerals assemblages in the typical alteration zones can be extracted and studied respectively after making use of spectral data of USGS,reestablishing the reflectivity curve of main altered minerals of the typical alteration zones of porphyry copper which is corresponded to Bl - B9 of ASTER satellite data, and comparing and analyzing comprehensively the spectral curve characteristics of main altered minerals, based on the altered mineral assemblages and their spectral characteristics of the typical alteration zones of porphyry copper,so that some important mine indicators can be provided for the comprehensive remote sensing assessment of porphyry copper in the studied area. Meanwhile, the mine indicating information such as ore-controlling structure,source beds and ore-hosted rocks of porphyry copper in the studied area can be achieved by using man-machine interactive remote sensing technology. Finally, a comprehensive assessment for deposit searching by remote sensing in the studied area is accomplished and the preferential area for deposit searching by remote sensing is delineated,based on the remote sensing mine indicating information such as linear and ring-shaped ore controlling structures, source beds and ore-boring rocks,argillic-and phyllic-altered,propylitization altered minerals assemblages. Compared to the data of the known porphyry copper deposit and geophysical and geochemical exploration in the witness of high-resolution satellite image, it is found that there is a sound effect by using remote sensing assessment method.
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