The processed stuff is what you want, northwest and southwest, AA12. Best thing to do is knock out the dead data layers (I think those were 48-50) and knock out I think band 14 (green vegetation layer) so all you get are the properly-identified signals. Ditto LANDSAT 8 (iron sulfate processed data.)

I suggest making it possible to support and import these sorts of data layers instead of including them as they do get very, very large. Leave it up to the user to slap them in and toggle them on/off on their own.

This would make it an instantly-valuable tool for professional, hobbyist, and studying geologists.

EDIT: https://imgur.com/a/fYf83hw Like this sort of processed data overlaid on top of the geologic units (with legend) would be so insanely helpful.