Exploring Mt Sharp - The Dunes - Part 1: Bagnold Dunes, Site 51-53, Sol 1172-1273, November 24, 2015-March 6, 2016 |
Exploring Mt Sharp - The Dunes - Part 1: Bagnold Dunes, Site 51-53, Sol 1172-1273, November 24, 2015-March 6, 2016 |
Nov 23 2015, 12:41 PM
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Senior Member Group: Members Posts: 2429 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Midnight Planets reporting that Curiosity moved approximately 46.2m SSE (161º) on Sol 1172. LINK Quick and Dirty L-NavCam using the 5 available frames (MS ICE), reduced ~10% to get within the UL limit
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Dec 8 2015, 05:20 PM
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Member Group: Members Posts: 146 Joined: 22-November 14 From: Bormida (SV) - Italy Member No.: 7348 |
@PaulH51 useful context!
I'm really fascinated by the variety of grains that we have here. Shapes, sizes and colors very different. Some seem almost transparent, others have small holes as a melting result, each covered with stuck dust. -------------------- |
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Dec 8 2015, 05:24 PM
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#3
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Junior Member Group: Members Posts: 58 Joined: 9-April 15 Member No.: 7433 |
@PaulH51 useful context! I'm really fascinated by the variety of grains that we have here. Shapes, sizes and colors very different. Some seem almost transparent, others have small holes as a melting result, each covered with stuck dust. I looked at this image and the other 3 or 4 for 30 minutes yesterday. I see at least 3 different color of translucent grains...also of interest is the apparent distribution and common size of these grains...very uniform...and somewhat "fresh" looking. I was thinking little raw "Diamonds" - haha, and maybe so :-) |
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Dec 8 2015, 06:34 PM
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Junior Member Group: Members Posts: 42 Joined: 19-October 12 Member No.: 6719 |
I looked at this image and the other 3 or 4 for 30 minutes yesterday. I see at least 3 different color of translucent grains...also of interest is the apparent distribution and common size of these grains...very uniform...and somewhat "fresh" looking. I was thinking little raw "Diamonds" - haha, and maybe so :-) Could the translucent grains be Olivine grains? |
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Dec 9 2015, 06:53 PM
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Could the translucent grains be Olivine grains? Chemin found forsterite (an olivine end-member) several times, so that's certainly an option. Here the Rocknest results, retrieved from PDS. QUOTE MINERAL,PERCENT,ERROR ANDESINE,45.8,4.5 FORSTERITE,18.2,2.6 AUGITE,18.1,3.8 PIGEONITE,11.4,4.1 MAGNETITE,2.7,1 ANHYDRITE,2.1,0.7 QUARTZ,1.6,0.7 There might be some similarity between Rocknest and the dunes. But Mars is good for surprises. Glasses/tektites, and SiO2 might be among other options. The recently published APXS and Chemin results (in the PDS) show bedrock rich in Si and depleted in Mg. Here an excerpt of Chemin results for Telegraph Peak: QUOTE MINERAL,PERCENT,ERROR
... QUARTZ,1.2,0.3 CRISTOBALITE,8.7,0.7 OPAL-CT,14.5,3 ... |
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