Mount Sharp Extended mission 1a - Page 14

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Author Message
LWS


Posts: xxx

Reply: 261



PostPosted: September 20, 2017 10:35 PM 

Barsoomer / Faceless;

re. 258; Compare it with these sol 1555 rocks below

Winston

LWS


Posts: xxx

Reply: 262



PostPosted: September 20, 2017 10:37 PM 

Barsoomer;

Re. your 260; Very nice!

That information is priceless.

Winston

John Radogno


Posts: xxx

Reply: 263



PostPosted: September 21, 2017 12:22 PM 

A very good match!

LWS


Posts: xxx

Reply: 264



PostPosted: September 21, 2017 9:31 PM 

John;

Thanks

Winston

Barsoomer


Posts: 344

Reply: 265



PostPosted: September 21, 2017 10:15 PM 

Wow! that's all I can say.

LWS


Posts: xxx

Reply: 266



PostPosted: September 21, 2017 10:34 PM 

Barsoomer;

Yes!

Gale crater was (is) a giant stromatolite habitat.

Also note the colours. I don't think its happenstance that the colours match so perfectly.

Winston

LWS


Posts: xxx

Reply: 267



PostPosted: September 21, 2017 10:49 PM 

THe next thing to look for in the Curi images are degraded Moeraki boulders or balls and martian thrombolites.

I think I captured a few on my Smugmug picture site.

Winston

Faceless


Posts: 24

Reply: 268



PostPosted: September 23, 2017 10:07 AM 

Are these Martian stromatolites:
[link]
[link] #stromatolites

LWS


Posts: xxx

Reply: 269



PostPosted: September 24, 2017 7:37 AM 

I think some are, as I've pointed out in my book "the living rocks of Mars" over a year ago.

Winston

LWS


Posts: xxx

Reply: 270



PostPosted: September 24, 2017 11:12 AM 

Check out Ayers rock (Uluru)

Is this reminiscent of any Curiosity rock.

This is just one of several images of different areas of Uluru that suggest that it bears many similarities to Mars' rock types.

I think I saw some suggestion somewhere that Uluru is actually a collection of ancient microbialites.

Winston

LWS


Posts: xxx

Reply: 271



PostPosted: September 24, 2017 10:10 PM 

Here's a 3D of a sol 1671 microbialite rock inspired by today's Curi image releases.

Those "veins" seem quite atypical. Note the anastomosing and that they are inside a broken or heavily eroded rock. The image was magnified to 150% and auto equalized and colour enhanced in Gimp. View in stereophotomaker at 200%. The features appear to be quite organic.

Winston

Faceless


Posts: 24

Reply: 272



PostPosted: September 24, 2017 11:53 PM 

LWS, regarding the Martian "stromatolite" shown in the upper left of http://www.gigapan.com/gigapans/194588
can it be formed purely by geology?

LWS


Posts: xxx

Reply: 273



PostPosted: September 25, 2017 12:04 PM 

Faceless;

Google "boxwork patterns in geology" and "boxwork patterns in microbialites or stromatolites" or "NASA work on stromatolites" for information.

NASA appears to be very interested in work related to the morphology of microbialites and has published a visual study of various stromatolite forms, many of which, including the one you reference, can be seen in several Curi images.

Winston

LWS


Posts: xxx

Reply: 274



PostPosted: September 25, 2017 11:53 PM 

Faceless;

THis paper might be useful as a starting point re. your question.

https://www.researchgate.net/publication/274776669_Lithostratigraphy_Facies_Interpretation_and_Depositional_Environment_of_the_Lower_Miocene_Gypsified_Stromatolites_and_Microbial_Laminates_Rabigh_and_Ubhur_Areas_Red_Sea_Coast_Saudi_Arabia


Winston

LWS


Posts: xxx

Reply: 275



PostPosted: September 26, 2017 10:15 PM 

Here's a 3D of a fallen rock that has signs of boxwork elements. Note also the different colours that bespeak different chemicals.

Winston

LWS


Posts: xxx

Reply: 276



PostPosted: September 30, 2017 1:52 PM 

Here's a minimal 3D version of a strange rock from the sol 1831 ChemCam library.

Looks like it might be a martian stromatolite to me. Home they post the context images soon.

Winston

LWS


Posts: xxx

Reply: 277



PostPosted: October 8, 2017 9:41 PM 

Another fairly weird rock from sol 1837. Erosion pattern looks different from most of other rocks imaged by Curi and possible veins and mudstones evident. Might be another martian stromatolite as suggested by colouration of sections of the rock and layered appearance.

Winston

LWS


Posts: xxx

Reply: 278



PostPosted: October 13, 2017 5:01 PM 

Curi Blueberries? Sol 1785.

Winston

Faceless


Posts: 24

Reply: 279



PostPosted: October 14, 2017 5:10 AM 

Re 278, they are elephants in the room. Wind could not have formed these spheres. Either life or water formed these spheres. Geologists do not think so.
See also:
[link] ?q=Utah%27s+Moqui+Marbles

Faceless


Posts: 24

Reply: 280



PostPosted: October 14, 2017 5:22 AM 

Correction, the spheres in reply 278 may not be perfectly round spheres.

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