Glenelg - Page 12

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Posts: xxx

Reply: 221

PostPosted: October 25, 2012 10:47 AM 

sol 70-77 animation of observation table:

Finally ready for a soil analysis?


Posts: 3062

Reply: 222

PostPosted: October 25, 2012 12:56 PM 


I've got a movable type error on several occasions over the past week. This was usually accompanied by disappearing posts, etc. Some have now reappeared but at least one is still missing.



Posts: 344

Reply: 223

PostPosted: October 25, 2012 1:11 PM 

Checking for overnight frost on Mars.

Glad to see they are looking. This would provide another check on the humidity sensor.

When I get a movable type error, it never posts. (With a timeout error, it always posts). For a movable type error, I can usually find the offending character that is not seven-bit ascii and replace it. One method I use is to copy and paste the text into emacs (a venerable plain text editor), which shows a non-ascii characters as something like \301.

Paul Scott Anderson

Posts: 53

Reply: 224

PostPosted: October 25, 2012 4:01 PM 

There is a rumour that Curiosity may have found methane:


Posts: xxx

Reply: 225

PostPosted: October 26, 2012 10:57 AM 

sol 0061 enhanced difference false color 3D of scoop trench:

Notice the multiple subsurface layers.


And here is an animation of soil on the observation tray. Be sure to read the Flickr comments.

What is going on in the soil?


Posts: 1661

Reply: 226

PostPosted: October 26, 2012 1:07 PM 

The Martian soil is very old and stale as e all know. Its solidified crust has saved the subsurface dirt to be just that...dirt with more than likely a dab of moisture to hold it together from floating around. No tectonics to bother with, albeit some are promoting it of late and it may be true, but that's a long time ago. Earth has no old soil we know of...just rocks with geological analysis data in them.

I can imagine Mars will turn into the Moon appearance in several more billion years once ALL the atmosphere has been depleted.

If there is a hint of methane its more than likely a chemical reaction to a still warm planet and its own defunct gasses that remain to dissipate. I see no cows here. A low cold atmosphere bombarded with daily doses of UV for millennium will take an effect of some sort that we know nothing about until studied.

Believe me I want to see some rocks overturned with a fresh gleaming fossil from a so-called riverbed to look at...that's probably what NASA thinks too as well as all on this blog.



Posts: xxx

Reply: 227

PostPosted: October 26, 2012 7:07 PM 

dx, taa-DAA!

sol 0071 Chemcam and sol 0072 Mastcam 3D:

with location link.

It's a good thing there are no fossils on Mars - otherwise this peculiar rock might be mistaken for a fossil... right?

Er, I wonder why it was imaged this way? A full set of Mastcam filters was also taken of the rock.


Posts: xxx

Reply: 228

PostPosted: October 26, 2012 8:40 PM 

Another sol 0071 0072 Chemcam Mastcam 3D of another peculiar rock:

with a location link - and a link to a reshoot on sol 0076.

The sol 0076 3D is one of TEN focus zoom shots! There must have been something interesting in this rock to reshoot that many.

( I think that there must be an English chap who is in charge of the Ministry of Silly Rocks who pores over the pictures and forwards peculiar rocks to the Frenchman who then points in the general direction of the peculiar rocks. )


Posts: 344

Reply: 229

PostPosted: October 26, 2012 11:10 PM 

Horton, in your reply 227, the image has tiny fibers or long rods (or veins?) all over the rock when viewed at the highest magnification. The bluish rock with whitish stuff on top is reminiscent of what we are seeing at the Oppy site at present.

I miss Monty Python.

Paul Scott Anderson

Posts: 53

Reply: 230

PostPosted: October 26, 2012 11:46 PM 

Is this another "bright patch"? On rock at centre-right.


Posts: xxx

Reply: 231

PostPosted: October 27, 2012 3:45 AM 

Good find Paul! I think this is indeed another white patch...would love to see a close-up!


Posts: 125

Reply: 232

PostPosted: October 27, 2012 12:03 PM 

Hort - re #227. Right.


Posts: xxx

Reply: 233

PostPosted: October 27, 2012 2:08 PM 

A couple more Chemcam-Mastcam 3D pairs of peculiar rocks:

with location links.

The first one really, really looks like a hollow cylinder. Unfortunately, the lighting doesn't match very well between the images - so it's hard to say exactly what we are seeing.

James G

Posts: 3

Reply: 234

PostPosted: October 27, 2012 3:40 PM 

Re Hort's 227, 228, 233,
Since Curi is currently working at the edge of an identified water-laid alluvial fan, it makes sense that fossil-bearing rocks could have been washed down and exposed here. The images are suggestive, just at the edge of critical resolution which would allow clearer id. The second image in 233 contains what resembles crinoidal inclusions.
The evidence of past surface water flow also affects understanding of geologic time-lines. Obviously, water flowed here after whatever events created the present rock and soil surface.


Posts: 125

Reply: 235

PostPosted: October 27, 2012 5:44 PM 

Hi Hort - Great images; thanks.

Is there anyway to know or guess which rocks are being magnified? Obviously ones that are very close to the rover. But it would be nice to see the rocks that are magnified from a distance to get an idea of what we are looking at up close.


Posts: xxx

Reply: 236

PostPosted: October 27, 2012 7:42 PM 

Er, um, ah, RJS, did you look at the images on Flickr and notice in the Flickr comments a link called Location? I try to include a link to a context picture for all my detail images. I always call the link "Location".

I thought the notation was self evident - but I guess not.

FOLLOW the $&$*ing links please.


Posts: 125

Reply: 237

PostPosted: October 27, 2012 8:46 PM 

Whoops! YES - I went to your Flikr. But NO - I didn't follow the $&$*ing links. I often do, but not this time.

I stand corrected...


Posts: xxx

Reply: 238

PostPosted: October 29, 2012 2:57 PM 

sol 0082 MAHLI false color 3D detail of peculiar rock:

with location links back to a Navcam pan - including along the way a super 3D Mastcam view of the same rock.

another sol 82 MAHLI 3D:

also turned to the left relative to the location image.


Posts: 303

Reply: 239

PostPosted: October 29, 2012 4:17 PM 

Maybe the "peculiar rock" is a carbonate rock.


"Carbonate rock sample collected during yesterday's dive. The shell fragments of seep clams are captured in this solid rock matrix, suggesting that this rock formed in a gas-venting environment. This is a classic example of a methane-derived carbonate cement."




Posts: 303

Reply: 240

PostPosted: October 29, 2012 4:31 PM 

In the past, the "lack of carbonates" has been used as an argument against life on Mars.

Article: Lack of carbonates deals blow to Mars life hopes




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