re: Actually, Robert...
Well, darn, rushed in where angels fear to tread once again. As soon as you mentioned acoustic processing I perceived the vast chasm of my mistake: Of course as a geologist you deal with signal processing, as well as aerial and thematic imagery. Duh!
I hope you'll give me partial credit for the main thrust of my argument: You probably got the colors right, but the results have little formal standing until blessed by somebody whose job title is "Dr. Official NASA Image Processing Expert, PhD".