Cape York - Shoemaker Ridge and the NE traverse, Starting sol 2735 |
Cape York - Shoemaker Ridge and the NE traverse, Starting sol 2735 |
Oct 11 2011, 12:19 AM
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#61
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Now we know where it landed after it was sent spinning. Close, Dan, but I think this is more likely... -------------------- |
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Oct 11 2011, 12:36 AM
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#62
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Senior Member Group: Members Posts: 3002 Joined: 30-October 04 Member No.: 105 |
And the P2405 sequence images today from Sol -2739 named "Sutherland Knobbys" is to the southeast and shows just the edge of the rectangular lineations. They are still mostly hidden by the ridge.
http://qt.exploratorium.edu/mars/opportuni...G8P2405L2M1.JPG and http://qt.exploratorium.edu/mars/opportuni...G8P2405L2M1.JPG "Sutherland Knobbys" is an interesting bit of Aussie history-- http://coalriver.wordpress.com/2011/08/18/...s-head-on-mars/ The prominent ridge in the second image is actually Sutherland Point in Botany Bay and Knobbys Head is behind it. Or so I think. --Bill -------------------- |
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Oct 11 2011, 12:38 AM
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#63
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Member Group: Members Posts: 399 Joined: 28-August 07 From: San Francisco Member No.: 3511 |
Don't want to Tar dis thread but... I hope we can investigate those features ...
-------------------- 'She drove until the wheels fell off...'
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Oct 11 2011, 12:48 AM
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#64
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Senior Member Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 |
And the P2405 sequence images today from Sol -2739 named "Sutherland Knobbys" is to the southeast and shows just the edge of the rectangular lineations. They are still mostly hidden by the ridge. I'd say that pancam sequence is looking more S-SW, well away from the "lineations". But the lineations are just visible in the navcams, here:Obviously we'll need pancams (or to drive closer!) to make out any detail. |
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Oct 11 2011, 12:51 AM
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#65
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Senior Member Group: Members Posts: 3002 Joined: 30-October 04 Member No.: 105 |
QUOTE (Ron_Hobbs) Those 'rectangular lineations' look a lot like the cemented fractures in Gale Crater May very well be-- my first thought on those was "cold water hydrothermal cementation along fractures", which is another way of saying "mineral-saturated groundwater once filled the fractures. The water deposited minerals on both sides of the opening". There have been several suggestions of "cold water hydrothermal" activity at Meridiani and this clinches it. --Bill -------------------- |
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Oct 11 2011, 12:56 AM
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#66
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Senior Member Group: Members Posts: 3002 Joined: 30-October 04 Member No.: 105 |
QUOTE (FredK) I'd say that pancam sequence is looking more S-SW, well away from the "lineations". Errr, could be. I'm getting a bit disoriented here, even with tracking data and orbital images.--Bill -------------------- |
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Oct 11 2011, 01:24 AM
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#67
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Senior Member Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 |
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Oct 11 2011, 01:33 AM
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#68
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Senior Member Group: Moderator Posts: 3431 Joined: 11-August 04 From: USA Member No.: 98 |
Here's an identification of features to the NE, where the clay signatures lie: Nice. And if it helps with orientation at all (which is indeed challenging), the 360 degree panorama I posted above is centered on north, as are the circular projections. |
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Oct 11 2011, 03:21 AM
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#69
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Member Group: Members Posts: 404 Joined: 5-January 10 Member No.: 5161 |
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Oct 11 2011, 03:23 AM
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#70
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Senior Member Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 |
Yeah, I should say - I couldn't've made those ID's without your mosaic and the circular projections!
BTW, in case anyone isn't monitoring the website, the Endeavour approach movie has been compiled, with accelerometer soundtrack. Really nice. http://marsrovers.jpl.nasa.gov/newsroom/pr.../20111010a.html |
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Oct 11 2011, 06:17 AM
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#71
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Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
This paper associates phyllosilicates with polygonal lineations in HiRise imagery, and offers some other interesting observations regarding the directions that some of the layers dip.
QUOTE 3. Morphology and Stratigraphy
[10] Images of the phyllosilicate-bearing crater rim segments from the MRO High Resolution Imaging Science Experiment (HiRISE) [McEwen et al., 2007] reveal layering and a range of polygonal textures (Figure 3a), similar in appearance to other phyllosilicate-bearing outcrops in Meridiani [Wiseman et al., 2008; Marzo et al., 2009] and many other locations on Mars [e.g., Wray et al., 2008; Bishop et al., 2008; Ehlmann et al., 2009]. Stereo views (Figure 3b) show that layers within the western rim dip away from the crater interior, as expected if the beds predate Endeavour crater and were back-tilted by the impact. In contrast, bright layers bounding many Endeavour rim segments [e.g., McEwen et al., 2009, Figure 29] dip down toward the crater interior; we cannot clearly determine whether these layers predate or postdate the impact based on orbital images. -------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
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Oct 11 2011, 12:32 PM
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#72
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Senior Member Group: Members Posts: 1074 Joined: 21-September 07 From: Québec, Canada Member No.: 3908 |
Great new images of the Odyssey boulders have come down, looking forward to the mosaics. See this post. (hope to learn how to make them myself one day). Try, for example, Photoshop Elements. There are also other software, free and commercial, out there. A Google search will come up with plenty of information. |
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Oct 11 2011, 02:56 PM
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#73
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Senior Member Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 |
This paper associates phyllosilicates with polygonal lineations in HiRise imagery Thanks for reminding us of that paper, Rocker. And Fig 3c in that paper shows the very polygons we're sitting next to right now!So we know they'll be interested in them. And yesterday there was this cryptic message from Maxwell: QUOTE Driving Opportunity with Tara today. No real obstacles to avoid, but at least our path is zig-zaggy, a nice change of pace from the plains. I can't wait to find out where we're going!( |
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Oct 11 2011, 07:03 PM
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#74
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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Oct 11 2011, 08:00 PM
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#75
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Senior Member Group: Members Posts: 1585 Joined: 14-October 05 From: Vermont Member No.: 530 |
Are those clouds? I know the vertical stuff is dust, but there's a horizontal banding in there. Just fill?
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