Spectrum Vis-NIR reflectance Ogaden Kebri Dehar basalt K1.7-0009 Spectrum Vis-NIR reflectance Ogaden Kebri Dehar basalt K1.7-1019 Spectrum Vis-NIR reflectance Ogaden Kebri Dehar basalt K1.7-2029 Spectrum Vis-NIR reflectance Ogaden Kebri Dehar basalt K1.7-3039 Spectrum Vis-NIR reflectance Ogaden Kebri Dehar basalt K1.7-4049 Spectrum Vis-NIR reflectance Ogaden Kebri Dehar basalt K1.7-5059 Spectrum Vis-NIR reflectance Ogaden Kebri Dehar basalt K1.7-6069 Spectrum Vis-NIR reflectance Ogaden Kebri Dehar basalt K1.7-7079 Spectrum Vis-NIR reflectance Ogaden Kebri Dehar basalt K1.7-8089