Post Block Island Meteor Studies (The Western Route), The 6th Leg in our Zig Zag Journey to Endeavour Crater |
Post Block Island Meteor Studies (The Western Route), The 6th Leg in our Zig Zag Journey to Endeavour Crater |
Guest_Bobby_* |
Sep 13 2009, 09:58 AM
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Guests |
I think it's time for a new thread for Opportunity after her Block Island Studies and time to think about where
the Mars Rover Drivers are going to send Her. Will they decide to head south of Block Island or go back to the western route they were on before? Where ever they go. I hope they find some more interesting surprises along the way. One Question I do have regarding the Rovers. Have they ever found any Diamonds or Gold along the way and if mars did have them. Would they be buried beneath the surface??? Something I've been wondering about for a while if any precious metals would be on Mars or Not? I would say yes. Time to start |
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Sep 20 2009, 04:05 PM
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
Hmmm... not only are there two specific types of rocks in the B&W images, one appearing white and the other appearing darker gray, there are several rocks in the image which show both rock types within the same rock. You can see in several rocks a contact between the light and darker rock types. And in a couple of cases, the faces are oriented exactly the same on both sides of the contact, so this can't just be an artifact of illumination angle.
I will say that there seems to be absolutely no difference in how the two different types of rocks have weathered -- i.e., those rocks which exhibit contacts don't exhibit weathering differences on the different sides of the contacts. So, whatever is causing the albedo difference is not changing the overall softness of the rocks. I'd have to think this shows some form of compositional change. This is the first place in a while where I wish the APXS and the Mossbauer were still working as quickly as they did a couple of years ago... -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Sep 20 2009, 10:44 PM
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Member Group: Members Posts: 237 Joined: 22-December 07 From: Alice Springs, N.T. Australia Member No.: 3989 |
two specific types of rocks in the B&W images, can't just be an artifact of illumination angle. I wish the APXS and the Mossbauer were still working - the other Doug You've made an interesting point Doug. It was this sort of rock that made me think that the whiteness was probably due to an artifact of camera exposure or illumination. (Plus I only know a very little about geology!) 1 - But when I relook at things in the light of your comments and come across this ... the white area on the top of the taller rock in the front 2 - then I get what you mean. The slab behind it...... does it look to you as if it could be made up of two different rock types? It is certainly an interesting place. It would have been great to stop, but having just been to Teishner's lastest map, it looks as if Sol 2011 may have taken us past here. |
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