Mount Sharp Extended mission 1a - Page 19

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Author Message
Joe Smith


Posts: xxx

Reply: 361



PostPosted: May 2, 2018 11:27 AM 

Yes but.............. what context volcanic sands?.... rocks are made from volcanic sand
or rocks are sitting in volcanic sand or ????

Joe Smith


Posts: xxx

Reply: 362



PostPosted: May 2, 2018 2:47 PM 

volcanic sand........... can you elaborate

(discuss further) a bit on that,, Please?

Joe Smith


Posts: xxx

Reply: 363



PostPosted: May 2, 2018 2:49 PM 

https://en.wikipedia.org/wiki/Black_sand

Faceless


Posts: 24

Reply: 364



PostPosted: May 5, 2018 8:42 AM 

Does anyone know the name of this fossil found at Vera Rubin Ridge, Mars?
[link]

Faceless


Posts: 24

Reply: 365



PostPosted: May 6, 2018 11:59 AM 

Numerous concrete pavements on Vera Rubin Ridge:
[link]

Joe Smith


Posts: xxx

Reply: 366



PostPosted: May 6, 2018 3:12 PM 

...........naturally occurring concrete that is...thanks faceless

Faceless


Posts: 24

Reply: 367



PostPosted: May 7, 2018 5:27 AM 

Joe, re reply 366, naturally occurring concrete or rocks do not form on sand. If rocks were transported to sand or if sand grains were transported to rocks, the rocks or the sand grains are rarely on the same level.

Faceless


Posts: 24

Reply: 368



PostPosted: May 7, 2018 5:56 AM 

Re reply 367, different rocks often have different heights. Even if they have the same height, they may be overlapped after transportation. So they do not form the same plane in height after transportation. Anyway, those objects were not transported, because they connect very well without overlapping. They may have been tilted somewhat in a catastrophe.

Faceless


Posts: 24

Reply: 369



PostPosted: May 7, 2018 10:05 AM 

Re reply 367, sorry, igneous rocks can form on sand or soil. However, those objects are not igneous rocks, in view of their flat surfaces. Sedimentary and metamorphic rocks do not form on sand or soil. If they can, the soil beneath them would have lithified and become rocks. Those objects have not been transported from elsewhere as mentioned in reply 368, so they should have formed originally on the spot (in situ). The above-mentioned factors point to artificial arrangement of the concrete material.

I am no scientist. There may be errors in my replies.

Joe Smith


Posts: xxx

Reply: 370



PostPosted: May 7, 2018 2:02 PM 

......hmmmmmmm,,,you seem to have put a lot of thought into it......hmmmmm

Faceless


Posts: 24

Reply: 371



PostPosted: May 15, 2018 9:31 AM 

Nature.com's Scientific Report:
Hematite can contain fatty acids; Mars rovers should analyze the chemistry in hematite minerals:
https://www.nature.com/articles/s41598-018-25752-7

Faceless


Posts: 24

Reply: 372



PostPosted: May 17, 2018 9:32 AM 

Curiosity is planning to drill into an artifact:
[link]

John Radogno


Posts: xxx

Reply: 373



PostPosted: May 17, 2018 10:40 AM 

Faceless, RE: 372 That is obviously a rock. Natural processes certainly do produce this kind of rock as we have shown in other threads.

Faceless


Posts: 24

Reply: 374



PostPosted: May 18, 2018 1:01 AM 

For the record,John, your posts in this forum never disprove my posts, period.

Darwin


Posts: xxx

Reply: 375



PostPosted: May 19, 2018 4:05 PM 

Now that is wet.

Darwin


Posts: xxx

Reply: 376



PostPosted: May 19, 2018 4:07 PM 

Re:359

Darwin


Posts: xxx

Reply: 377



PostPosted: May 19, 2018 4:17 PM 

Red areas could be life, Simular to Europia.

Paul Scott Anderson


Posts: 53

Reply: 378



PostPosted: June 4, 2018 6:48 PM 

Heads up:

'NASA to Host Live Discussion on New Mars Science Results'

https://www.nasa.gov/press-release/nasa-to-host-live-discussion-on-new-mars-science-results

Barsoomer


Posts: 344

Reply: 379



PostPosted: June 4, 2018 9:28 PM 

Paul, thanks very much for that heads up. I looked up the participants. The focus seems to be on the SAM instrument.

Both Jennifer (https://science.gsfc.nasa.gov/sed/bio/jennifer.l.eigenbrode) and Chris Webster seems to be involved in analyzing isotopes for bio-indications using the Tunable Laser Spectrometer (TLS).

https://en.wikipedia.org/wiki/Sample_Analysis_at_Mars

I thought this might be related to the drill/sample/SAM stuff being back in business, but the TLS seems more oriented towards analyzing gasses such as CO2 and CH4, which would not require the drill. For example, the carbon isotopes in those gasses might or might not be those preferentially used in biology.

Paul Scott Anderson


Posts: 53

Reply: 380



PostPosted: June 5, 2018 12:20 AM 

Barsoomer, yes, I had looked them up too. Interesting. I also found that Paul Mahaffy specializes in the chemical and isotopic composition of planetary atmospheres, and he is the Principal Investigator (PI) for the SAM Instrument.

https://science.gsfc.nasa.gov/sed/bio/paul.r.mahaffy

I've seen speculation it may be about the methane? Or at least organics it would seem?

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