Average spectral profiles (left) for the 7.25–8.95 μm region obtained from clustering assignment based on the 7.25–8.95 μm region and the corresponding cluster zones (right) are given in the top two frames. The average spectral profiles (left) for the 7.25–8.95 μm region obtained from clustering assignment based on the 10.9–11.63 μm region and the corresponding cluster zones (right) are given in the bottom two frames. Cluster and FOV labels are the same as in Fig. 8.