What I was attempting to do was to make a comparison between the Mazatzal rock which shows the glassy, transparent areas, and the earlier MI images of Humphrey. In the images of Humphrey that I linked the subsurface also looks rather shiny, perhaps glassy.
I'm suggesting finding the nature of this subsurface material in Humphrey, in the dark deposits in Bonneville crater and now also in the subsurface of Mazatzal could solve a key puzzle in the mineralogy of the surface of Mars:
The Tricky Business of Identifying Rocks on Mars
--- A new analysis of thermal emission spectra suggests a new
interpretation for the composition of the Martian surface.
Written by G. Jeffrey Taylor
Hawai'i Institute of Geophysics and Planetology
http://www.psrd.hawaii.edu/May02/MarsTES.html
Bob Clark
Space/Science » in reply to Clarification
re: Clarification
The whole thread (33 posts)
- Glassy material at the Spirit site.
- Mazatlal rock--MI and color
- Clarification
- some guesses and first impressions
- 3D image of the glassy material.