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Home, Sweet Home, Dream becomes Reality
Shaka
post Feb 5 2006, 06:46 PM
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Hope no one minds, but I felt we have to have a new topic, right from the start, as a compendium of all the Factual Observations on this incredible structure...this Mother Ship from another world...this...(who said Burgess Shale? I laughed at that at the time. blink.gif ) Who will start us off with a detailed description of what we see before us TODAY February 5, 2006 - Super Sunday.
(I'll be running from game to Exploratorium all afternoon! biggrin.gif


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imipak
post Feb 8 2006, 08:58 PM
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Now _that's_ what we like to see! smile.gif

http://qt.exploratorium.edu/mars/spirit/fo...55P1206R0M1.JPG

My uneducated intuition makes me think the lower, thicker layers, which seem to have large grains (small pebbles?) embedded in them, are composed of volcanic ash rather than windblown (or water-washed) fine sediments. Of course intuition is reliably wrong...

Question to the geologists: does rock formed from volcanic ash appear any different (to the instruments on Spirit) if the ash fell onto standing water, or onto dry land? Hmm, and I suppose if we imagine that there are repeated episodes of ash fall and periods under water, it will make a difference if the sediments between the water and the ash are water permeable?

Clearly there's SOMETHING different between the lower, coarse layers and the higher fine layers. What else might it be? (this is a real question, not a rhetorical.)


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Shaka
post Feb 8 2006, 11:03 PM
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QUOTE (imipak @ Feb 8 2006, 10:58 AM)
Now _that's_ what we like to see! smile.gif

http://qt.exploratorium.edu/mars/spirit/fo...55P1206R0M1.JPG

My uneducated intuition makes me think the lower, thicker layers, which seem to have large grains (small pebbles?) embedded in them, are composed of volcanic ash rather than windblown (or water-washed) fine sediments. Of course intuition is reliably wrong...

Question to the geologists: does rock formed from volcanic ash appear any different (to the instruments on Spirit) if the ash fell onto standing water, or onto dry land? Hmm, and I suppose if we imagine that there are repeated episodes of ash fall and periods under water, it will make a difference if the sediments between the water and the ash are water permeable?

Clearly there's SOMETHING different between the lower, coarse layers and the higher fine layers. What else might it be? (this is a real question, not a rhetorical.)
*

Aha! But here it is!
http://qt.exploratorium.edu/mars/spirit/mi...55P2936M2M1.JPG
And what , pray tell, is it?
If it's sandstone, I don't see any grains .
If it's scoria, I don't see any gas spaces .
If threatened with torture, if I don't talk, I would quote a Past Maestro of Home Plate" It's deja vu all over again! It's the kind of fabric Oppy has been sinking her abrasive into all over Meridiani! Smooth-lumpy STUFF!
But a geologist would phrase it more ...esoterically. cool.gif


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dvandorn
post Feb 9 2006, 01:47 AM
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QUOTE (Shaka @ Feb 8 2006, 05:03 PM)
Aha! But here it is!
http://qt.exploratorium.edu/mars/spirit/mi...55P2936M2M1.JPG
And what , pray tell, is it?
If it's sandstone, I don't see any grains .
If it's scoria, I don't see any gas spaces .
...
*

I know I'm probably not seeing what I think I'm seeing. But it looks a little like limestone to me.

It's got this flat-smooth-plates look to it that reminds me of limestone emplaced in hot springs.

I'm probably wrong, but it's a lovely image... rolleyes.gif

-the other Doug


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Posts in this topic
- Shaka   Home, Sweet Home   Feb 5 2006, 06:46 PM
- - Shaka   O.K. We're there, and we might as well start a...   Feb 5 2006, 09:44 PM
- - Burmese   Ok, the 'Going to Home Plate' thread is ge...   Feb 6 2006, 07:02 PM
- - Mongo   We already have a new thread about the arrival at ...   Feb 6 2006, 07:12 PM
- - Burmese   Oops, sorry, didn't spot that one!   Feb 6 2006, 07:14 PM
- - mhoward   Check out the view out "to sea", as it w...   Feb 6 2006, 07:15 PM
|- - ElkGroveDan   QUOTE (mhoward @ Feb 6 2006, 07:15 PM)althoug...   Feb 7 2006, 04:08 PM
- - Burmese   And the atmosphere is clearing a bit, I think!   Feb 6 2006, 07:25 PM
- - gpurcell   The granular lower level intrigues me. Could be a...   Feb 6 2006, 07:44 PM
|- - Shaka   QUOTE (gpurcell @ Feb 6 2006, 09:44 AM)The gr...   Feb 6 2006, 08:34 PM
- - Bill Harris   Just off the top of my head: the reason Spirit nee...   Feb 6 2006, 09:15 PM
- - vikingmars   I hope we will have some time also to climb on top...   Feb 6 2006, 09:21 PM
|- - Nirgal   hand-colorized Sol 744 "Home Plate" pano...   Feb 6 2006, 10:46 PM
||- - mars loon   QUOTE (Nirgal @ Feb 6 2006, 10:46 PM)hand-col...   Feb 6 2006, 11:04 PM
||- - Steve   QUOTE (mars loon @ Feb 6 2006, 11:04 PM)Bernh...   Feb 6 2006, 11:17 PM
|- - mars loon   QUOTE (vikingmars @ Feb 6 2006, 09:21 PM) I h...   Feb 6 2006, 11:16 PM
- - RNeuhaus   I look forward in hearing from JPL's activity ...   Feb 7 2006, 01:40 AM
- - Sunspot   They need to put the MI on the rock in the top lef...   Feb 7 2006, 01:52 AM
|- - RNeuhaus   QUOTE (Sunspot @ Feb 6 2006, 08:52 PM)They ne...   Feb 7 2006, 01:58 AM
- - Bill Harris   QUOTE The shards of shattered rock need not indica...   Feb 7 2006, 01:55 AM
|- - Shaka   QUOTE (Bill Harris @ Feb 6 2006, 03:55 PM)The...   Feb 7 2006, 03:22 AM
- - Sunspot   Yep...thats the one. Also Spirit would be in a gr...   Feb 7 2006, 02:05 AM
|- - Shaka   QUOTE (Sunspot @ Feb 6 2006, 04:05 PM)Yep...t...   Feb 7 2006, 02:56 AM
- - ddeerrff   QUOTE (Sunspot @ Feb 6 2006, 08:52 PM)They ne...   Feb 7 2006, 02:59 AM
|- - Shaka   QUOTE (ddeerrff @ Feb 6 2006, 04:59 PM)You me...   Feb 7 2006, 03:25 AM
- - ilbasso   That "laminated fallen rock" almost look...   Feb 7 2006, 03:00 AM
- - Richard Trigaux   Hi all, there was recently another thread Home Pl...   Feb 7 2006, 08:29 AM
- - Bill Harris   Richard-- I'm witholding judgement until we k...   Feb 7 2006, 10:12 AM
|- - dilo   Really sweet! It seems drivers are very, very ...   Feb 7 2006, 08:20 PM
||- - Shaka   QUOTE (dilo @ Feb 7 2006, 10:20 AM)Really swe...   Feb 7 2006, 08:35 PM
||- - dilo   QUOTE (Shaka @ Feb 7 2006, 08:35 PM)  Is...   Feb 7 2006, 08:54 PM
||- - Richard Trigaux   QUOTE (dilo @ Feb 7 2006, 08:54 PM)Look at th...   Feb 7 2006, 09:09 PM
||- - Zeke4ther   QUOTE (Richard Trigaux @ Feb 7 2006, 05:09 PM...   Feb 8 2006, 04:45 AM
|- - Richard Trigaux   QUOTE (Bill Harris @ Feb 7 2006, 10:12 AM)Ric...   Feb 7 2006, 08:56 PM
- - Burmese   Does this image show Bonneville in the upper left?...   Feb 7 2006, 03:43 PM
- - SigurRosFan   I mean no, Bonneville is rather behind the rocky h...   Feb 7 2006, 04:05 PM
- - Burmese   A run, a short followup bump, set the wheels, and ...   Feb 7 2006, 08:00 PM
|- - jabe   QUOTE (Burmese @ Feb 7 2006, 08:00 PM)http://...   Feb 7 2006, 08:05 PM
- - Bill Harris   I just regained my power of speech and I'm aga...   Feb 7 2006, 08:03 PM
- - mhoward   This is the view looking 45 degrees down directly ...   Feb 7 2006, 08:07 PM
- - odave   ...best parking job I've seen since Elwood swu...   Feb 7 2006, 08:11 PM
- - Tman   The last pictures show so many layers in the Plate...   Feb 7 2006, 08:13 PM
- - mhoward   Here's a wide view and a "top" view.   Feb 7 2006, 08:25 PM
- - jvandriel   Here is the view of Homeplate on Sol 744. Taken w...   Feb 7 2006, 08:39 PM
- - jvandriel   and here Spirit looking back on Sol 745. Taken wi...   Feb 7 2006, 08:40 PM
- - mhoward   Good grief - imagine what the Pancams will look li...   Feb 7 2006, 08:41 PM
|- - Nirgal   QUOTE (mhoward @ Feb 7 2006, 10:41 PM)Good gr...   Feb 7 2006, 08:46 PM
|- - Shaka   QUOTE (Nirgal @ Feb 7 2006, 10:46 AM)latest L...   Feb 7 2006, 11:29 PM
|- - djellison   QUOTE (Shaka @ Feb 7 2006, 11:29 PM)Rats, no ...   Feb 8 2006, 08:17 AM
|- - Holder of the Two Leashes   Terrific pictures, abalone! Thanks. QUOTE (d...   Feb 8 2006, 06:05 PM
- - mhoward   Nice, Nirgal! Fast work, too; I'm pretty s...   Feb 7 2006, 08:54 PM
- - djellison   They wont climb to the top here ( infact, they...   Feb 7 2006, 08:55 PM
- - Ames   Looks like a good angle to catch some rays and rec...   Feb 7 2006, 09:01 PM
- - jvandriel   Here is the view from Sol 744 into the drive direc...   Feb 7 2006, 09:04 PM
- - SigurRosFan   Here's a new rover view ... Today's (Sol ...   Feb 7 2006, 09:14 PM
|- - dilo   QUOTE (SigurRosFan @ Feb 7 2006, 09:14 PM)Her...   Feb 7 2006, 09:39 PM
|- - mars loon   Are there estimates on how high is HP above the su...   Feb 7 2006, 11:12 PM
|- - dilo   QUOTE (mars loon @ Feb 7 2006, 11:12 PM)Are t...   Feb 7 2006, 11:30 PM
- - Burmese   http://qt.exploratorium.edu/mars/spirit/na...55P19...   Feb 7 2006, 09:19 PM
- - Richard Trigaux   I must say that there is a tremendous work made to...   Feb 7 2006, 09:23 PM
- - djellison   two threads merged   Feb 7 2006, 09:24 PM
- - Bill Harris   QUOTE Are we looking at the bottom of this layered...   Feb 7 2006, 11:18 PM
- - abalone   Wow!!   Feb 8 2006, 07:58 AM
|- - Bob Shaw   QUOTE (abalone @ Feb 8 2006, 08:58 AM)Wow...   Feb 8 2006, 09:32 AM
||- - Richard Trigaux   QUOTE (Bob Shaw @ Feb 8 2006, 09:32 AM)Indeed...   Feb 8 2006, 07:34 PM
|- - dvandorn   QUOTE (abalone @ Feb 8 2006, 01:58 AM)Wow...   Feb 8 2006, 03:17 PM
- - Tesheiner   A combination of two panoramas. Oppy at Home Plate...   Feb 8 2006, 09:22 AM
|- - RNeuhaus   QUOTE (Tesheiner @ Feb 8 2006, 04:22 AM)A com...   Feb 8 2006, 04:01 PM
- - abalone   Hazcam view   Feb 8 2006, 10:28 AM
- - Bill Harris   QUOTE Oppy at Home Plate on top, and Spirit at Bur...   Feb 8 2006, 11:25 AM
- - djellison   It does strongly remind me of Burns Cliff - the mi...   Feb 8 2006, 11:30 AM
- - dvandorn   There are obviously two different lithologies goin...   Feb 8 2006, 04:29 PM
|- - Steve   QUOTE (dvandorn @ Feb 8 2006, 04:29 PM)There ...   Feb 8 2006, 05:16 PM
|- - Chmee   QUOTE (dvandorn @ Feb 8 2006, 12:29 PM)I keep...   Feb 8 2006, 05:36 PM
|- - Tman   QUOTE (dvandorn @ Feb 8 2006, 05:29 PM)I keep...   Feb 8 2006, 07:07 PM
|- - RNeuhaus   QUOTE (Tman @ Feb 8 2006, 02:07 PM)If it...   Feb 8 2006, 07:22 PM
- - Bill Harris   And the "dark layered rock", may be the ...   Feb 8 2006, 05:40 PM
- - djellison   I don't think it needs to - I think this rock ...   Feb 8 2006, 06:54 PM
- - Shaka   Setting aside PM for now (we need to see it closer...   Feb 8 2006, 07:41 PM
- - aldo12xu   I think we're looking at strata that has been ...   Feb 8 2006, 08:13 PM
|- - Nirgal   Here is a color-stitch of the great Sol 746 navcam...   Feb 8 2006, 08:58 PM
|- - ljk4-1   QUOTE (aldo12xu @ Feb 8 2006, 03:13 PM)I thin...   Feb 8 2006, 08:58 PM
|- - aldo12xu   QUOTE (ljk4-1 @ Feb 8 2006, 08:58 PM)I t...   Feb 8 2006, 10:54 PM
- - imipak   Now _that's_ what we like to see! http:/...   Feb 8 2006, 08:58 PM
|- - Shaka   QUOTE (imipak @ Feb 8 2006, 10:58 AM)Now _tha...   Feb 8 2006, 11:03 PM
|- - imipak   QUOTE (Shaka @ Feb 8 2006, 11:03 PM)Aha! ...   Feb 8 2006, 11:39 PM
||- - Shaka   QUOTE (imipak @ Feb 8 2006, 01:39 PM)"We...   Feb 9 2006, 03:07 AM
|- - dvandorn   QUOTE (Shaka @ Feb 8 2006, 05:03 PM)Aha! ...   Feb 9 2006, 01:47 AM
|- - DFinfrock   QUOTE (dvandorn @ Feb 9 2006, 01:47 AM)I know...   Feb 9 2006, 02:14 AM
- - alan   How about some color?   Feb 8 2006, 11:26 PM
- - jamescanvin   I haven't seen these two Pancam ESF's stit...   Feb 9 2006, 02:11 AM
|- - RNeuhaus   QUOTE (jamescanvin @ Feb 8 2006, 09:11 PM) A...   Feb 9 2006, 03:08 AM
|- - DFinfrock   QUOTE (RNeuhaus @ Feb 9 2006, 03:08 AM)Anyone...   Feb 9 2006, 04:32 AM
- - Bill Harris   This is a fine-grained indurated rock, and until w...   Feb 9 2006, 03:04 AM
- - glennwsmith   Posts have been added so rapidly here that I may s...   Feb 9 2006, 05:43 AM
|- - Richard Trigaux   QUOTE (glennwsmith @ Feb 9 2006, 05:43 AM)Pos...   Feb 9 2006, 07:53 AM
- - glennwsmith   P.S. Any Teilhard de Chardin fans out there?   Feb 9 2006, 05:46 AM
- - deglr6328   How come a few miniTES samples haven't been ta...   Feb 9 2006, 06:11 AM
- - jamescanvin   This looks good CODE748 p2271.05 72  0 ...   Feb 9 2006, 06:12 AM
- - CosmicRocker   QUOTE (Bill Harris @ Feb 8 2006, 09:04 PM)Thi...   Feb 9 2006, 06:37 AM
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