EM 1110-2-2907
1 October 2003
Landsat bands 3, 2, 1
Band ratio 3/1 highlights hematite
Band ratio 1/7 highlights aluminum ore
Band ratio 7/5 highlights clays
Band ratio 4/2 highlights biomass
Figure 5-11. NASA Landsat images from top to bottom: Color composite bands
3, 2, 1, band ratio 3/1 highlights iron oxide minerals, band ratios 7/5 and 1/7 re-
veals the presence of water in minerals--appropriate for mapping clay miner-
als or aluminum ore, and band ratio 4/2 allows for biomass determination.
5-20
Previous Page
