哈达门沟金矿蚀变分带的高光谱分析及找矿意义

徐大兴, 杨彪, 邵兆刚, 柳长峰, 王达, 王建平

A hyperspectral analysis of alteration zoning in the Hadamengou gold deposit and its significance for ore prospecting

XU Daxing, YANG Biao, SHAO Zhaogang, LIU Changfeng, WANG Da, WANG Jianping

表1 Landsat8 OLI、WorldView-3和ASTER遥感影像数据特征参数对比

Tab.1 Comparison of feature parameters of Landsat8 OLI, WorldView-3 and ASTER remote sensing image data

传感器 光谱波段 波长范围/μm 空间分辨率/m Landsat8 OLI B1 Coastal 0.43~0.45 30 B2 Bule 0.45~0.51 30 B3 Green 0.53~0.59 30 B4 Red 0.64~0.67 30 B5 NIR 0.85~0.88 30 B6 SWIR 1 1.57~1.65 30 B7 SWIR2 2.11~2.29 30 ASTER B1 Green 0.52~0.60 15 B2 Red 0.63~0.69 15 B3N NIR 0.78~0.86 15 B4 SWIR1 1.60~1.70 30 B5 SWIR2 2.145~2.185 30 B6 SWIR3 2.185~2.225 30 B7 SWIR4 2.235~2.285 30 B8 SWIR5 2.295~2.365 30 B9 SWIR6 2.360~2.430 30 WorldView-3 B1 Coastal 0.40~0.45 1.24 B2 Blue 0.45~0.51 1.24 B3 Green 0.51~0.58 1.24 B5 Red 0.63~0.69 1.24 B6 Red Edge 0.705~0.745 1.24 B7 VNIR1 0.770~0.895 1.24 B9 SWIR1 1.195~1.225 7.5 B10 SWIR2 1.550~1.590 7.5 B13 SWIR5 2.145~2.185 7.5 B14 SWIR6 2.185~2.225 7.5 B15 SWIR7 2.235~2.285 7.5 B16 SWIR8 2.295~2.365 7.5