Mars News - Page 6

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danajohnson0


Posts: 1195

Reply: 101



PostPosted: February 13, 2019 2:29 PM 

https://www.sciencenews.org/article/nasa-curiosity-mars-rover-weighed-mountain-its-climbing?tgt=nr

The last paragraph gives the interpretation as porosity below the current surface layers, and a rebound with basaltic origin at depth I would presume cause a 'scoria/cinder' type effect, with water present in the true bowl of a crater. Subsequent layering of impact clays from liquefaction might bury the porosity layer. Does my suggestion seem possible to you?

Why the presumption of a massive removal process? The inner rim slopes show large scale semi-fluid patterns at places rather than sedimentary fine layered residuals, a weather changing pattern would fit the suggestion of a post impact lake without infilling, and the erosion of the down flows you displayed come from the upper layers, with a major evacuation vertically in the mid-section of the primary 'mountain'.

The concentration on a massive long lived lake, would be timed after the 'dike swarm' details from regional volcanic sources, and the dikes penetrate the mountain in satellite images. The crater and mountain/cone would have to be much older than the regional volcanic sources.

The surface layers appear not horizontal in bulk.

Vertical small structures match the common vertical erosion removal at larger scale in the layers passed.

Water and basalt interaction during the impact possibly could result in porosity, but the bottom of layers seen by Curiosity show a pitted, removal process is real.
Why would porosity not be a subsurface activity, rather than a dry assembly of porous grains?
Why would the wind altered layering at lower elevation, show any similarity to the upper slopes and the density of the core of the mountain?
Why would a crater cone be a lake deposit in bulk?

danajohnson0


Posts: 1195

Reply: 102



PostPosted: February 16, 2019 5:57 PM 

https://www.researchgate.net/publication/258688201_An_overfilled_lacustrine_system_and_progradational_delta_in_Jezero_crater_Mars_Implications_for_Noachian_climate


Is there convincing evidence that Jezero or Gale features are not impact structures, or are timed at active tectonic margins co-incident with volcanic activity?

Gale mountain, in line with the distant dike swarm structure.
Ref., Gale Crater, Gale Crater 2., and Gale Crater3., in the list.

https://planetcarto.wordpress.com/2016/05/06/exploration-zone-maps-annotated/

The image here is not directly the large 'swarm', just another indication of the pervasive dike pattern on the north-east portion of the Gale crater area.

Gale mountain in the maps is suggested to be volcanic and is nearly as high as Aeolis Mons.

https://www.hou.usra.edu/meetings/lpsc2017/pdf/2411.pdf

2012 assessment of the impact origin of Gale crater and a shallow 0.5 to 1 km thick melt pool, not assessing deep formation of porosity by volcanic activity.

Where is the 'proof' of dust structures filling a crater bowl depth?

danajohnson0


Posts: 1195

Reply: 103



PostPosted: February 17, 2019 4:58 PM 

Reply #102, line 6, the origin of the dike type pattern arises from the north and west, not north-east, and is in line with the 'Gale mountain' feature. The vast altered landscape of the two features, Gale crater and 'Gale mountain shows a mutual interaction with breakdown of the rim and slopes, similar to the lowered elevation of the north-west of Aeolis Mons, known as Mount Sharp.

This is curious new release of earthquake types defined as slow slip events, possibly not detected by a lander such as at INSIGHT on Mars.

http://www.msn.com/en-us/weather/topstories/an-earthquake-lasted-50-days-but-no-one-felt-it-heres-why/ar-BBTtHYK?ocid=ientp

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

danajohnson0


Posts: 1195

Reply: 104



PostPosted: February 19, 2019 1:46 PM 

New weather service on Mars by INSIGHT instruments, at this link.

https://www.jpl.nasa.gov/news/news.php?feature=7337

Actual weather link.

https://mars.nasa.gov/insight/weather/

A high of 15 degrees F, and a low of -140 degrees F. Fairly stable lows, variable highs. The late northern winter weather includes a wind speed varying from close to zero each day to a high of 25 to nearly 38 MPH. Hefty wind with a switch in direction on the latest day.
Need the charts to see the wind pattern and temperature changing.

Any estimates about the wind maximum over time?

Good opportunity to study the dust devils.

John Radogno


Posts: 37

Reply: 105



PostPosted: February 21, 2019 2:49 PM 

danajohnson0,
Thanks for all of the links you provided in the above 4 posts. I am going through all of them. Lots of very interesting information, diagrams, images, and abstracts. You put out a lot of questions, we may get the answers sooner rather than later.

Joe Smith


Posts: xxx

Reply: 106



PostPosted: February 24, 2019 10:27 AM 

....what kind of electricity do DD produce?....((note: (GOOGLE LATER))...can this be harvested???....

Joe Smith


Posts: xxx

Reply: 107



PostPosted: February 25, 2019 9:23 AM 

Well,,,,,,, we never reached the boxlike structures on up the mountain.

Dana Johnson


Posts: 1195

Reply: 108



PostPosted: February 25, 2019 7:34 PM 

I have read some guesses from the pre-landing research Joe, but it will now be an opportunity to study the wind and pressure up close, with the temperature variation and spin versus size a study for large and small types. Being in them gives me an understanding that a direct hit at tens of feet diameter is truly an strong effect, whereas the largest I have been in are just barely detectable as wind direction variation to a human perception.
The strongest I experienced, caused me to lean into the wind at about a foot to fifteen inches off the ground at my head facing the wind. It must have been close to 70-85 MPH, at Earth pressures, with stinging debris like sand and sage, needles and other material in the column. At a daily wind on Mars of 25-40 MPH, the desert devils would pass in just seconds and the energy may be straight line differentials or waves.
The energy of a wind energy device from either source might be significant. Where have the Earth wind devices been placed? At stable wind sources and flatlands or shores where the wind is common. We have a large investment in Oklahoma in wind farms.
The types of chemistry and electromechanical differences are a new technology on Mars perhaps.
Haven't tried to look for microcrystals in the MSL images as yet. I've ignored the blog and rover results for too long the past couple years.
It would help us to have available economical DVD collections of the original results rather than the years of pecking and waiting for downloading.
Finding energy sources from the results would help future missions. Going to open a new set of 'hand warmers' now for the evening chill. Hope you are doing well.

Barsoomer


Posts: 344

Reply: 109



PostPosted: March 16, 2019 2:03 AM 

Deposits from an Early Mars Inland Sea

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