Table 1.
Validation results for iron-related alteration zones using Sentinel-2 band ratio expressions.
| Iron Component | Band Ratio Expression |
|---|---|
| Ferric iron (Fe³⁺) |
|
| Ferric Oxides |
|
| Ferrous iron (Fe²⁺) |
|
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.