【摘要】 利用ASTER和WorldView-3数据进行预处理，通过借鉴和分析ASTER数据矿物指数、矿物指数法理论、蚀变矿物光谱特征规律，总结提出WorldView-3数据蚀变矿物指数。通过观察研究区蚀变矿物信息分布情况，对比分析ASTER和WorldView-3数据蚀变矿物信息提取的适用性。ASTER数据更适用于赤铁矿、褐铁矿，黄钾铁矾矿物信息提取，WorldView-3数据更适用于白云母、绿泥石、绿帘石、菱铁矿、方解石矿物的信息提取。同时，结合研究区地质特征，预测了成矿远景区。基于ASTER和WorldView-3数据蚀变矿物指数，实现两种数据的优势互补，完善了WorldView-3数据蚀变矿物信息提取。预测成矿远景区对进一步找矿提供了参考。更多还原

【Abstract】 This article used ASTER and WorldView-3 data to preprocess the data. By referencing and analyzing the mineral index of ASTER data, the theory of mineral index method, and the spectral characteristics of altered minerals,the WorldView-3 data altered mineral index was summarized and proposed. By observing the distribution of altered mineral information in the study area, the applicability of extracting altered mineral information from ASTER and WorldView-3 data was compared and analyzed. ASTER data is more suitable for extracting mineral information from hematite,limonite, and jarosite, while WorldView-3 data is more suitable for extracting mineral information from muscovite, chlorite, epidote, siderite, and calcite. At the same time, based on the geological characteristics of the study area, a prospective mineralization area was predicted.Based on ASTER and WorldView-3 data on altered mineral indices, the complementary advantages of the two types of data have been achieved, improving the extraction of altered mineral information from WorldView-3 data. The predicted mineralization prospect area provides a reference for further exploration.更多还原