Solander Point - Page 14

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Bill Harris


Posts: 3

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PostPosted: January 11, 2014 1:42 AM 

Forgot to mention-- this little rock looks interesting, but it is clearly an erratic: no in-place, but transported from elsewhere. Next we need to look for in-situ specimens so we can figure the context.

--Bill

john


Posts: xxx

Reply: 262



PostPosted: January 11, 2014 2:36 AM 

Me wonders why it is not dust covered as are the surrounding rocks. Reminds me of cracking open geodes when I was a kid. Looks pristine to me...

hortonheardawho


Posts: xxx

Reply: 263



PostPosted: January 11, 2014 1:48 PM 

Sol 3541 MI 3D pairs.

Barsoomer


Posts: 344

Reply: 264



PostPosted: January 11, 2014 10:31 PM 

John,

I think you're right about the "geode" being pristine.

So the thing has only been there a few Sols. Where did it come from? Perhaps we are fortunate enough to see the underside of a rock where it has just broken off. A hard stony exterior and a colorful interior. Maybe the colors will fade in a few Sols now that it is exposed.

hortonheardawho


Posts: xxx

Reply: 265



PostPosted: January 12, 2014 12:07 AM 

Sol 3528 3541 (Dec 27, 2013 - Jan 9, 2014 ) animation of rock Cape Elizabeth Pinnacle Island on Cook Haven:

Barsoomer, why didn't you just point out that the rock appeared after the last move?

I sure hope the plan is to study the rock carefully for a few weeks.

My guess ( hope ) is that we are seeing some hearty Martian organism that lives under small rocks. The Infrared view should change quite dramatically IF it is uncovered and unprotected life.

hortonheardawho


Posts: xxx

Reply: 266



PostPosted: January 12, 2014 10:56 AM 

Today's plan:

4. What EDRs did we request?

Expected EDRs by sequence number and image type:

Sol Seq.Ver ETH ESF EDN EFF ERP Tot Description
----- -------- --- --- --- --- --- ---- -----------
03544 p2596.32 7 7 0 0 1 15 pancam_disturbed_soil_Rall
03544 p2601.05 4 2 0 0 2 8 pancam_tau_L78R48
03544 Total 11 9 0 0 3 23

Hmm. WHAT disturbed soil? If you look at the sol 3540 close pan:

and compare it to the close pans before the move:


there does not appear to be a good candidate for the disturbed soil where the rock may have been before the 180 turn to the new target.

Perhaps someone else can spot a likely "disturbed soil" location?

In the meantime, enjoy this B&W preview of a lovely pan back towards the north:

Kye Goodwin


Posts: 1166

Reply: 267



PostPosted: January 12, 2014 11:55 AM 

Bill Harris, re your 260, Thanks for posting those links to papers about post-impact hydrothermal activity, especially the third, that numerically simulates 45 km and 90 km crater forming events into Martian permafrost. One take-away for me is the predicted long subsequent duration of above-freezing conditions, 1000s to 100,000s of years. Another main point: target permeability is a major factor in the development and persistence of hydrothermal activity and likely highly variable from place to place.

Your comment about gypsum reminds me that the presence of gypsum is another link between the bright rock and the cape materials (see my 243). The margins of Cape York show frequent gypsum veins and gypsum is a major component of the bright rock. I'm guessing that the veins at Cape York are perhaps related to the greater permeability of the cape material relative to the bright rock. Maybe after the event that buried Endeavour, water drained out of the fine bright material concentrating in the permeable conduit of the coarser cape breccias, precipitating gypsum.

I'm too am hoping that the search for the "clay pot at the end of the rainbow" isn't Oppy's only goal. I'm pretty convinced that just moving on south for another 100 m or so will tell us more than extended examination of Cook Haven. We still haven't found the real proximal ejecta of Endeavour, but its here all right underneath the mantle.

Bill Harris


Posts: 3

Reply: 268



PostPosted: January 12, 2014 6:25 PM 

There is indeed more to the story than they are looking at/for. Short-sightedly, I think they are simply looking for a ground truth of the remote-sensing CRISM data. Which is OK, but they are overlooking a lot of on-site clues.

Disturbed soil? Who knows. There seems ot be a LOT of planning done by senior administrative interns. The only candidate for that is this Sol-3516 image, which Oppy drove over on or about Dec 13-14.

We'll know more in a few days...

--Bill

hortonheardawho


Posts: xxx

Reply: 269



PostPosted: January 12, 2014 8:34 PM 

Sol 3537 3544 ( Jan 5-12, 2014 ) animation of rock and disturbed soil of Cape Elizabeth Pinnacle Island on Cook Haven:

Holy crap!

The rock examined with the MI and APXS on sol 3519 was magically transported to the sol 3541 site when the rover turned 180 degrees.

Fiendishly clever rover programming - or improbable serendipity?

Did the team dare to dig up the rock with the IDD and push it to the new site?

Naaah.

But then how did the rock get to where it is now???

Oppy's hole in one 10 years ago is nothing compared to this feat!

hortonheardawho


Posts: xxx

Reply: 270



PostPosted: January 13, 2014 11:15 AM 

Sol 3514, 3519, 3544 (Dec 12,17, 2013, Jan 12, 2014) infrared false color montage of disturbed soil area at Cook Haven:

The disturbed soil is not exactly at the location of the rock examined before the move.

Here is an animation of the before / after images:

If you use the Firefox browser ( highly recommended ) then you can view this as an animated PNG image.

I still think the rover somehow moved and turned a rock - but the location of the rock is slightly different. I don't think there was any scientific basis ( no previous infrared images ) for selecting the rock disturbed - so the movement must have been entirely accidental.

I still hope that the rock is examined with every resource Oppy can muster. The results will make the NEXT ten years a new mission!

Mauree


Posts: xxx

Reply: 271



PostPosted: January 13, 2014 11:53 AM 

Hort, sorry to ask for details in case you describe those elsewhere, but what are the "R"s in the formulas you described: R = max ( R5, R6, R7 ) ?

The enhancement formula you did does not "distort" the color, it seems to me like a "color zoom" - so depending on the significance of the R, temperature may play a factor here.

hortonheardawho


Posts: xxx

Reply: 272



PostPosted: January 13, 2014 3:21 PM 

Er, sorry for the confusion Mauree.

The R on the left side of the equation is the image's Red brightness component , created from the brightness values in the filters on the right side.

The filters are explained in the filter section in this document.

Thus, for example, the R2 image was taken with the Right Camera Filter 2 - which is a 754 nm ( 20 nm bandpass )filter.

The MER pan cameras are not Thermographic Cameras!

They are only sensitive to near infrared light coming from the sun ( which is about half of the solar radiation ).

So, sorry - no temps can be derived from camera images.

Mauree


Posts: xxx

Reply: 273



PostPosted: January 13, 2014 4:07 PM 

Thanks so much for the filter link documentation, very interesting! Ok, yeah

If I interpret your numbers and the filters and that image correctly all the right cams are deep red (even green in your picture), but the middle of the rock peaks at one specific wavelength ~950nm which is peculiar.

Also, this is the first time I've seen such a drastic "appearance" from one day to another. Excitement!

Barsoomer


Posts: 344

Reply: 274



PostPosted: January 13, 2014 5:15 PM 

So far we haven't seen any trail leading to the unusual rock, which suggests it may have "jumped" from one location to the other. It is interesting to speculate if this might have been due to some explosive gas release when the ground was disturbed, or if some fortuitous placement of the rover weight on some kind of loose surface constituted a crude "lever" to loft the rock into the air. Given the slow speed of the rover wheels, either possibility would be remarkable.

The patch of disturbed soil, at first sight, does not seem to match the shape of the rock.

Bill Harris


Posts: 3

Reply: 275



PostPosted: January 13, 2014 5:38 PM 

Ummm, I am hard-pressed to see _any_ correlation between this "disturbed soil" site and the Mystery Ruddy Rock recently discovered. Or even that the "disturbed soil" site is particularly noteworthy.

--Bill

hortonheardawho


Posts: xxx

Reply: 276



PostPosted: January 13, 2014 7:36 PM 

Sol 3514 3540 ( Dec 12, 2013 - Jan 8, 2014 ) 3D animation of area near disturbed soil on Cook Haven:

Ah. There is still a rock near the disturbed soil - so it is NOT the source of the mysterious Cape Elizabeth Pinnacle Island rock!

So - the origin of the rock is STILL a mystery!

Perhaps you are right Barsoomer about an explosive event that hurled pinnacle rock to its present location.

I don't like unrelated mysteries -- so perhaps the eruption of trapped CO2 gas released by the IDD work nearby pushed one part of the rock aside and launched another part over the rover!

Oppy will most likely study both the disturbed soil and pinnacle rock very closely to resolve this mystery.

Oh boy, oh boy! What fun!

John


Posts: xxx

Reply: 277



PostPosted: January 14, 2014 3:28 AM 

Me hopes we will stick around for a while. We need to crunch more rocks under the wheels (oppy's can take it), and analyze them. I'm so disappointed in the MSL crew laser zapping DUST. As said, the spectrographic analysis is different than any rock seen, which makes me think we are simply looking at the cloak of dust.

zoost


Posts: 56

Reply: 278



PostPosted: January 14, 2014 3:31 AM 

very intriguing. could the rock be hitchhiking in the inside of the wheel for a while and be released here by a turn or bump? Lucky that this rock is fascinating by itself, and was released upside down! Fun indeed.

hortonheardawho


Posts: xxx

Reply: 279



PostPosted: January 14, 2014 9:16 AM 

Sol 3539 ( Jan 7, 2014 ) false color panorama looking north from Cook Haven:

This is the Anniversary Tracks 7x2 L257 panorama.

I synthesized some missing data to complete the pan.

Notice Cape York and Knobbys Head off in the distance.

I wonder if there will be a 20th year anniversary pan?

Stan


Posts: 14

Reply: 280



PostPosted: January 14, 2014 3:57 PM 

Horton,
Can you explain a little better why infrared would be more indicative of reflected sunlight than temperature of the rock? I own an infrared camera, and although reflection is an issue, the temperature variance within an area except in cases of photographing a mirror of window is what gets picked up by the camera. If this rock had a mirror surface the reflection would be more understandable.

Stan

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