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The Top of Vera Rubin Ridge Part 1, Site 66-67, sol 1812-1943, 11 Sep 2017-23 Jan 2018
PaulH51
post Sep 11 2017, 09:50 AM
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Welcome to Route 66... Er, make that Site 66 smile.gif
Drive 0000 on Sol 1812. Roughly stitched L-NavCam using MS ICE
Midnight Planets reporting it as ~5.6m ESE (115) link
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elakdawalla
post Sep 11 2017, 08:19 PM
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A new site seems like a good spot to make the split to a new thread.


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PaulH51
post Sep 13 2017, 05:15 AM
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After the short drive on sol 1814 here's a quick-n-dirty NLB 360 pan, Please delete when the complete version is posted, this may help fix the location.
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jvandriel
post Sep 13 2017, 09:28 AM
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The Navcam L view on Sol 1814.

Jan van Driel

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jvandriel
post Sep 13 2017, 09:49 AM
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and the view looking back ( North ) on Sol 1814.

Jan van Driel

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serpens
post Sep 13 2017, 11:01 PM
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The really fine laminations indicate suspension fallout in reasonably deep still water, so the crater was experiencing a wet environment when this level was laid down. Given the original permeability of the deposits my horribly unreliable intuition suspects that the hematite developed during a dry cycle via a mixing interface between groundwater and water infiltrating from a disconnected stream, fed by acidic meltwater at the beginning of the volcanic period that gave rise to the sulphate formation. Development in an open rather than closed environment.

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Phil Stooke
post Sep 14 2017, 06:24 AM
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One of Jan's panoramas in circular form.

Phil

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PaulH51
post Sep 14 2017, 08:03 AM
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Sol 1814 post drive workspace, assembled in MS ICE, raw colour, no additional processing.
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Floyd
post Sep 14 2017, 11:39 AM
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QUOTE (serpens @ Sep 13 2017, 07:01 PM) *
The really fine laminations indicate suspension fallout in reasonably deep still water, so the crater was experiencing a wet environment when this level was laid down. Given the original permeability of the deposits my horribly unreliable intuition suspects that the hematite developed during a dry cycle via a mixing interface between groundwater and water infiltrating from a disconnected stream, fed by acidic meltwater at the beginning of the volcanic period that gave rise to the sulphate formation. Development in an open rather than closed environment.


I assume the spot was cleared of dust by laser blasts, not by brushing? If so I don't think I have ever seen this type of cleaning. Might the shiny surface be hematite? Not berries, but sheets???


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PaulH51
post Sep 14 2017, 09:30 PM
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QUOTE (Floyd @ Sep 14 2017, 07:39 PM) *
I assume the spot was cleared of dust by laser blasts, not by brushing? If so I don't think I have ever seen this type of cleaning. Might the shiny surface be hematite? Not berries, but sheets???

It appears to be LIBS of an AEGIS target. Here is the before and after LIBS. The eroded surface seems to have small 'facets' for want of a better description. Certainly an interesting site...
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serpens
post Sep 16 2017, 01:18 AM
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Specular reflections which is a pointer to crystalline minerals. Given that this is the hematite cemented ridge we could punt for hematite / goethite.
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PaulH51
post Sep 16 2017, 08:31 AM
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2 MAHLI's from Sol 1816 of the fractured sedimentary bedrock in front of the rover. The first is a context frame, the second is a focus merged product of the center of the context frame. The surface dust is more abundant on certain areas, probably just on the 'flatter sections' but at first glance I thought is was concentrated at specific laminations smile.gif

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Links ONE and TWO


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PaulH51
post Sep 16 2017, 11:48 AM
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ChemCam RMI Z-stack & red/cyan anaglyph of fine laminations in the target "Phoney Island".
Assembled using the 7 'ENHANCED Data Products' posted by JPL of the 9 RMI frames acquired, it may be possible to pull some more detail from all 9 if the missing 2 turn up as enhanced files. I used PICOLAY to assembled the Z-Stack and the anaglyph shown here. I'm sure JPL's 3D model will be much better than this basic version, but it was fun making it smile.gif
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HSchirmer
post Sep 16 2017, 12:38 PM
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QUOTE (PaulH51 @ Sep 16 2017, 08:31 AM) *
2 MAHLI's from Sol 1816 of the fractured sedimentary bedrock in front of the rover.

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Curious, raindrop mark?
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serpens
post Sep 17 2017, 11:48 PM
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After all those fine laminations, now for somethiing a little different.


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