Mars_Polar_Event_ESP_011777_0950_Giza_region

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Dana







PostPosted: December 20, 2009 4:08 AM 

The January 30, 2009, release of ESP_011777_0950, taken of the south polar Giza region layered icy terrain includes some of the most obviously active spider/fan dark streaking terrain. Taken at South -84.8 x East 65.7, the display includes this near complete crystallographic view which forms the basis of the spider/fan structures. Seen in aspects and partial view usually, this is an object which will someday be an iconographic pattern in our astronomy/natural history books. The Sun incident angle is about 9 degrees above the horizon line. Timing was Mars late autumn. 50cm/pixel resolution.
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An animated GIF shows both the sunlight favored position and angle of the item, and the concentration of highlighted sunlight favors only a few other occassional rounded edges of nearby items. The pattern includes the 'figure eight'(infinity symbol) which Raptor Witness discussed in the small rover MI images of soil details at Meridiani Planum and Gusev crater locations, at thousands of miles distance. The pattern is similar to some of the concentric ringed radial array soil patterns found at Meridiani over the years. Those items were possessing central core items of intrigue, or possible solar incidence orientations. Many possibilities come to mind.
Any ideas? Blueberry/spheroidalism association across Mars? Were spider/fans common on Mars in prior timing? Perhaps here on Earth as well?
Grayscale full frame reduced size source image. Additional links and detailed images in the topic reply listing.
Mars is as amazing as these satellites and lander/rovers we are using to map and write the planets history.
Enjoy the winter-time, snow, ice, images, and warm conversation.

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PostPosted: December 20, 2009 4:40 AM 

An additional smaller full frame color view in map orientation. The active domain areas are margined by very inactive regions, which show upon close inspection, many former active fan vents, mounds, and cobble to boulder sized relics.
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A color still view of the spider domain section where this very well exposed spider structure is found. Enlargement was about 3 to 1 or greater. Desaturated(color removed) here as at the topic closeup.
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Altered coloration and other settings, JPG.
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A animated GIF below, of the same active area. Several altered views to show the clear sunlight preference, or, the sunlight and erosion exposure which has given such a clear view of the Spider/fan structure basis. Are there several organized structures for Mars Spiders? I find this matches many or most of the well exposed objects when they are seen in clear viewing.
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I find the animated GIFs are burdensome to the servers, so if you feel comfortable with it, please download those to reduce server overhead at the hosts. The timing and speed of the viewing is improved, and the images can be studied by yourself at close range in a photo editor or viewer. Anti-virus checking is always a good idea, but I use a half dozen anti-malware-A/V background programs here, so these should all be trust-worthy files. Animated GIFs start slowly, as they are multi-megabyte, and I time them slow.

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PostPosted: December 21, 2009 3:53 AM 

A comparison of two Spider Araneiform structures in very differing lighting and elaboration, with the glowing angelic shapely form(right side), from ESP_011777_0950, at about 3.2x size, and the left side image from ESP_011697_0980, position listed on the image and file name.
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ESP_011697_0980

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PostPosted: December 21, 2009 3:35 PM 

Three images of the ESP_011697_0980 source HiRISE south polar region linked at reply #2, are shown with the location in pixel(x,y) points as centered, the size in all is 2x, and the lat image was altered to enhance the ovoid ringed pattern which is subtle and difficult to view.
The upper left Spider is seen in the subsequent two images as at the lower left of those, and the ovoid mound in the last two images, is just above the frame limits on the first image.
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Unaltered view including the upper left 'Spider' in the first image. The elevated mound with the core ovoid/spheroid is the detail of signifigance here.
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A marked and slightly altered view of the second image, to show the ovoid common ringed items which are very numerous, but not much viewable in the unaltered images.
The common ground is textured by a smaller pitted spheroidal pattern seen across most structures in this location.
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What are the sequenced objects, and which are the sets of separate orderliness in the scene?

Source: ESP_011697_0980 as at reply #2.

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PostPosted: December 22, 2009 7:41 AM 

The small image section above at reply #3 shows a small elevated mound with a central oval spheroid type shape at the near apex, and here I have that image altered in two of three images combined as a 'animated' GIF image.
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About 1.1MB, and 815 to 600 pixels, this may or may not be large enough for you to see the smaller 'Araneiform', 'arm', extensions beginning to extend from the core oval spheroid object.
As this is a elevated mound, and most Araneiform objects are depressed elevation processes, this may be an important aspect of the Araneiform development processes.
The spheroid itself seems to have a second shape pattern on it in these images. It ma be a tonal contour line in the altered images. I cannot tell as yet.
Even the 'arms' seem to be a raised elevation process, matching dis-similarly patterns in the routine depressed elevation Spiders.
Can we assume the development is producing the two processes at some timing, or are these two types of Starburst (Spider) Araneiform a differing set of processes, not transforming between the two- mounded, and eroded?
The animated GIFs always work better on your own computers, but should work in the final, third, mouseclick largest image access.

Joe Smith


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PostPosted: December 27, 2009 12:00 PM 

This, may or may not interest you,Dana.

http://www.newmars.com/forums/viewtopic.php?f=9&t=8168

Joe in Sunny Texas

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PostPosted: December 29, 2009 4:07 PM 

When this was presented at another prior but somewhat related topic, i made the observation that in my first casual look at the image, that I found within a small area an apparent mounded or raised eruption zone with a core spot within it. I didn't have time for more looking, but to see biology at our resolution in these, would be to suggest that the structures be detailed and the size of elephants or larger.
That's not a criticism of the claim which is not detailed in reasoning, but the images is a larger context than 1 to 1, and I would like to see closer views with supportive content, as with my topic here which gives enlarged 2x to 6x views with fairly great detail.
The content of biology may or may not be showing articulated parts or ordering in a long term permafrost climate. The effects of snow, ice, and weather, would give a control of the appearances, I believe.
We do need more coverage of that area, which is nor far from many dark streaking eruption areas which are seasonal.

Joe Smith


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PostPosted: December 31, 2009 9:39 AM 

More recent,2 months ago.
[link]
Second image seems to have a boulder that just rolled or slid?
Example of spider-network on second one?

Joe in Texas

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PostPosted: January 4, 2010 3:46 PM 

Tried a quick search for the Arisa volcanic/dune terrain 'lava-tube' type channel shown, but the news service did not give a good ID or link., and my search on HiRISE gave a series of bad responses. I'll respond later, as the Tharsis plateau is a little further from the major impacting lows between the source image I was presenting in the topic images, and both areas show major outflow from the impacts or whatever caused the planet-wide geological formation of outflows into both image zones from the deep low of the major crater/basin. I have thought it may be related all across Mars in that regard, yes.
Foreign material, or Mars disrupted secondary transfer? Altered mixed material effect, or a new material on Mars from the process? Post impact volatiles locked in for a very long timing?
Good for thought.

Joe Smith


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PostPosted: January 4, 2010 9:35 PM 

Sadly it will take us years to know what atmospheric condition exist underneath.
(Breathable air)
Smells like methane I would guess.

Joe in cold 44F Texas

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PostPosted: January 5, 2010 11:56 AM 

The posting of replies is slowed considerably on the blog. It takes a few minutes here as well to receive a confirmation pf the first attempt.
I have been looking over another HiRISE image of the large Spider/Fan dark streaking terrain area at the South polar area. This is related directly to the topic image in the type of terrain formation, (crystalline patterns match), however, this area is heavily covered with the Spiders and former dark streaking Fans. If you remember my assertion that a classic Spider carries this 3D elevation and 'birds eye view' appearance, in varying degrees of recognizable detail, these stills and the animated GIF shadow exposure shows how the circular 'Fan' type bright and dark combined 'pits' and 'cones' can at times appear as possible secondary embedded debris or in place grown darker objects, surrounded by brighter collars of material within the crystalline formation core zones.
Whether the South Polar realm is a repository of debris from the major craters a 1,000 to 1,500 miles away, or a more recent source of darker objects, or, perhaps whether the objects are part of an upwelling material along deep arcing faults and fractures that oppose and match the great Tharsis Plateau volcanic arc circle (which points to the major distant craters), will be a long term determination for those with the best imagery.
This is the HiRISE image ESP_014423_1040, not far from my topic image, and the terrain spot is marked in the small overview image by 'x,y' coordinates. The images are at 4x size if HiRISE standard, and are the limits of the IAS viewer enlargement I can display. The dark streaking has left dark dune ripples of material, difficult to view when inactive, and less directionally oriented as from the dark solid sources shown here.
The dark objects in the shaded Spider margin, partly buried, are easy to view only in the animated GIF image, as the objects are mostly in shade, and are very dark.
Some dark Fans or dark streaking across Mars show these dark cores and some do not show solids which are dark. Some 'streaking' Fans show only very bright solids as core material, with separate dark streaking, and less obvious sources for the dark streaking material.
Location of the view is x=36500 , y=60400 , in the Infra-Red 'RED' JP2 large source image. Index page, ESP_014423_1040 .
All source images, credited to: NASA/JPL/University of Arizona

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Small overview, of the source JP2 in IR as 'RED' file.
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The animated GIF, which apparently works best when downloaded to your own computer if possible. The dark core objects here appear as not pits or blow holes, but as dark 'rock' or meteorite shapes, possibly even actively grown in place, as the surrounding material encases the dark objects as 3d elevated 'positive space' items. Full size about 1876x1058 pixels, but it may be easy to view reduced to fit your screens. Changing the file type on these eliminates the multiple image sequence and animation, leaving an initial still image view.
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Still alternative views. JPGs
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The reason I include this set of images with the topic image, is that the mound shown in the topic image is a dual elevated object set as well as these nearly hidden objects, and the darker core of the elevated surface mound has a similar appearance to the Spider core dark objects seen in this second HiRISE image from the nearby South Polar region. Much of the Spider and Fan formation region is within the great arc which reaches a large part of the distance around Mars, centering on the very large crater depressions.
If any of the statements are confusing, try the Google accessory interactive map on the HiRISE index page for the source image linked above. The great arc(circle,?) is about 2,000 to 3,000 miles in diameter, and forms the defining positions of the three large Tharsis volcano summits. The sides of the volcanoes slopes have oriented directional distortions. The single viewable arc is not the only large scale Mars global item defined by the large basins at the near center indicated by the arc.

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PostPosted: January 5, 2010 3:30 PM 

Here is another interesting addition to the overall puzzle of Spider/Fan formations. From the same source image as reply #10 above, the ESP_014423_1040, 'RED' image, this is located at x=40600 , y=60400 .
The size is different, here it is a 2x image size, an 'anigif' sequence without a supporting JPG still as yet, but I wanted to show the core objects in this case very bright, even in partial shade(possibly metallic in icy surroundings?), and seemingly very porous with very contrasty darker large vacuousities or included darker objects, or, possibly vent type accesses bounded by the bright collar type formation seen in the neighboring Spider formations at reply #10 images.
While vents are seen in only a minority of the Spiders as 'nozzle' shaped ringed or collared vertical eruption shapes, most of the venting seems to be contorted by obstruction gravel, rocks, boulder sized materials, or by overburden layering surface materials. We will know someday, but this image suggests either a bright venting with a building bright 'collar', or a porous bright source in this Spider set, with darker openings rather small and well defined.
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PostPosted: January 8, 2010 12:32 PM 

Nearby the entry location of the HiRISE image, ESP_014423_1040, source images linked at the reply #10 above, this is within a few hundred feet of the prior images, and is within the regional clustering of the Spider/Fan structures in numbers large enough to cause these to overlap in domains. Faint darkness to the former active fan streaking is seen, but the area is not visibly active.
This spot shows a set of Spider/Fan details as separate items at about 4x the HiRISE viewing standard, and the formation of the spider parts is in the range of tens of feet for each aspect. Some of the highly ordered parts are marked in some animated GIF sequences, and still images. I see irregular erosion or shrinkage type matching 'rocks' in the darker recesses in some shaded areas, other items are radial, or rosette type assemblies, and the lower area of the scene has the look of a liquid or semi-liquid flow process during either construction/formation or erosion eruption release. The additional probable action is an ongoing repeated action, involving a long term process of environmental alteration and ordering growth, then shrinkage/erosion or decay. It appears the rosette structure matches the standard Spider assembly, has the look of a 'cast', cementation, or, growth process, with a later breakdown period.
Any offers of processes and materials involved?
Possibly a very large calcite rosette petalled structure, later in an erosion state? Some ice based mineral assembly in a state of sublimation/alteration?
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A mix of images, in a series of tonal setting, all the same location, some easier to view than others. a few stills of the scene. More will be presented later.
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Additional variations of animated GIF in the next post following this.

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PostPosted: January 8, 2010 1:52 PM 

Added animated GIF sequences from the same location, some marked, some not.
Other than a possible calcite rosette petalled type shape influence in this, as a possibility at ten feet plus in size radius(half the diameter), what is the major organizing control for the Mars Spider formations we observe?
Can these be considered as mineral formations in ice, or in primarily a ground mass with a lesser ice set of chemicals or briny semi-liquids?
Are the topic image characteristics the same as this image from a separate HiRISE photo?

Can the structure be assumed as buried or hidden in most all the views we have, and is the development of the erosion/construction/alteration of the geology ground mass an ongoing process?

Can this be seen as a 'life-like' set of processes at a satellite's distance?
All images in the replies #12 and #13 are at 4x enlargement.
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Images in reply 12 & 13 are from ESP_014423_1040: credit, source images: NASA/JPL/University of Arizona

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PostPosted: January 9, 2010 8:25 PM 

Dana,

I thought the spiders were all ravines not above ground, and the central core was also a depression.

Greg.

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PostPosted: January 11, 2010 4:05 AM 


Thanks, Greg, with a response below.

For those without spare time, drop to the images. This is a long chant, small in content.

I've been lost in study of this source image from the HiRISE collection, ESP_014423_1040, and haven't checked in here for a couple days. Your suggestion about much of the Spider/Fan venting would make sense in context of the common thought expressed here on marsroverblog over the years, as most trained persons were of the mind that deposition was the common process in short timing, shallow amounts, and the wind blown removal was a long term process which could dominate at long intervals. The presumption was that non-polar processes were slow and moved almost exclusively the fine micron or sub-micron sized particulates which were easy to transport.
While I oversimplified the combined thinking, and the process, the polar areas were not discussed in that presumption as the areas are understood to be affected by either snow, frost, or sublimation type transport of gas/solid ice materials assumed to be H2O and CO2 with the similar fine dust material from other regions of Mars.
Anyone disagreeing with my assessment who contributes on the blog feel free to correct my memory of the past five years of merged conversations.
I know the images I am studying here from HiRISE are new to all, within the past few years, and we all will find new processes or features in locales.
I will try to keep my mind open to both correction and new details as they become apparent.

In regard to your observation that the Spiders, or Araneiform, processes are often depressions based upon removal or alteration/consolidation, I try to keep my attention on the sun light angle during the image taking timing. I find I have to correct myself commonly, unfortunately, and hope you will keep me informed when I 'invert' the perceptions about elevated and recessed levels of features.
Both removal and addition can perform the increase or reduction in elevation on Earth. We have studied the water solvent and consolidation process often enough in our lives to accommodate the sinking levels of loose dirt, dust, even sand to some degree, And at times we can 'see' the compacting of loose fill or see the effects in rocks which have all porosity's removed by compression or heating.
One process we seldom see in understanding is the sublimation of solids directly to gas. Fire is one exception we could take note of, and last week the snow piles around the Midwest U.S. were appearing in direct conversion to water vapor where the freeze was long term(87 hours here). I carefully noticed the wicking and wet ground around the piles on the direct radiation areas, and think of the high vapor pressure and atmospheric minimum which is relatively stable on Earth. The liquids can maintain a liquid state even below freezing somewhat, and the direct radiation is altering the thickness of layered transparent and 'white' ice each day.
In regard to these images which are stills, we cannot watch the daily to seasonal processes except in the remaining interaction of features, and attempt to extract the overlapping multitudinous shallow layering in the polar areas.
Even after finding layering, the sequences are confusing routinely. I can see very shallow overlaps in each view screen at 1 to 1, to the 4 or 6 to 1 limits of resolution. These Spider/Fan Araneiform assemblies are showing both limits of surface activity in thin layer domains, and in others nearby other assemblies show no limit in the coverage beyond the edge limits of the thin similar layers. It seems an important discussion, as to whether the climate/season or other environmental influence gives strict limits in distribution of the formations. I even had to think about the timing of the various domains as of differing extent based upon materials in various seasons or climate/sunlit conditions.
We on Earth base our industries of life upon the seasons routinely, whereas we assume the fuels are a year round potential almost without limits. The South Polar region of Mars has sunlight and ice cover limits, probable solids limits, and marginal energy sources we know of. Finding the power stations for Araneiform features is a key to the full story.
With as much Argon in the Mars atmosphere as seen currently, I wondered to others, without answer as yet, how much Radon gas would erupt or seep from deep sources. Just an example of the type of material which is not yet measured in local distribution across Mars. I mentioned the impression I have of the finer details of some of the Spider cores as similar to the Titan landscape larger scale features. A large temperature variation seasonally, yet similar detailing possibly.

I made a few animated GIFs which are from 1 to 2, to 4x in scale from an area of the ESP_014423_1040 source IR 'RED' image, and would like to present an interesting closeup view of a five pointed 'starfish or 'brittle star' shaped core item in the upper left of center of the primary Spider pattern in these enlarged views. The darker images show the elevated condition best. The shape seems to have survived the erosion or alteration and out gassing, with a core mounded spheroid center, a platform with angular sides, and bright narrow extensions from the platform shape to the lower elevated base of the Spider formation.
All around the details are both appearing as a combination of removal and shallow additions. Many layers, veining or dike type injections or seepage, and a generally very active zone at some timing.
The repeat patterned auricular or partial rosette acicular formations are seen in very restricted portions of the full Spider pattern. Here the few petals are seen at varied angles, not planar, and in formation which very smooth related veining shapes in mounded and varied tones, perhaps even varied colors. I am working in IR grayscale here for this entry.
Each Araneiform 'Spider' seems to have variation, with structured main component content. These images appear mineral to my view, crystalline and chemical, but may have a more active process at other scale reference. Coxcomb may be an adequate term for the petaled arrays, but I usually never use the term. A link(Wikipedia) to basic crystal terms for readers generally.
Good to hear from you, you have some very fine work which I will need to refer to over the years I study these. You do some fine imaging. Critical disclaimer is as valuable as congruent expression. Open minded here at this stage of first views, and my observations are just that, not a final view, set in terms.
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This should be 1 to 4 from a mid section of the ESP_014423_1040 IR image, with the cursor + near center, where the closeups were taken. The apex of the left to center straight angled features aim to the spot selected for enlargement. The layers in this view are not seen, only the 3D thicker Araneiform formations overlapped or jointed in massive number. A still image first.
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A 2 to 1 view of the several petaled non-horizontal patterned aspects, near oval appearing darker pits which have brighter narrow stem-like extended shapes. The dust ripple filled depressed spots show narrow bright irregular angled veined material which is common in the formations of this source photo.
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Another 2 to 1 anigif view of the details. Differing settings. A few elevated deposits from the venting is clear. I assume the overall balance was removal, although the margin of layers not seen show a depositional elevated limit for most all, with overlaps. Addition with alteration change over time is what I would assume on Earth. On Mars polar material I'll be the listener waiting for research works to read.
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At 4x the images are losing definition and sharpness.
An anigif showing the 5 or 6 sided central item in this 'Spider'. Stills will be at the image host on my index list on the page with these.
Some removal, some addition or alteration, and the next images may show the thin layered overlapping margins not seen in this entry closeups.
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As is common, I have more questions than answers with each new source image.
These appear as semi-liquid to liquid consistency flow/venting to me, if low temperature deposits.

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PostPosted: January 12, 2010 3:31 PM 

Same location as the entries 12, 13, and 15, above.
I have marked the lightest 4x view of the Spider, or Araneiform, ordered object which is found in ESP_014423_1040. The first view simply has arrows matching functional parts by a color selection.
In the second image, I have increased the contrast, gamma, and brightness to bring out the subtle variations in the features, such as the bright 'collars', elevated or depressed cores of a few obvious former vents(possibly eroding inclusions if not active vents), and to show the elevated platform of the apparently 5 sided polygon shape which has a central spheroidal core elevated at the top.
The well shaped polygon angles are not exclusive to this Spider core, but the regular pattern is not seen in most Spider core elevated platforms. The fairly common Spider core platforms are at the former ground level approximately, and are usually irregular but vaguely circular or an irregular polygonal basis in shape. Often the local ground tendency toward polygon faces is approximately matched by the Spider core platform faces, in those Spiders which the platform core is observed.
A JPG view, with a PNG on the image host index list adjacent to this JPG. 4x size and a still image, unaltered.
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The altered view from the same source reference point and size, annotated with an arrow legend for aspects I have tried to identify by functional relationship.
Notice the 'vents' I marked are to the right side of the tabular petal groups at nearly equal measure. In most of the dark 'vent' circular items, a arched or straight 'petal' brighter emerging shape is seen vaguely. At the far right upper dark spot, the shape is broad and flat in apparent orientation, issuing to the dark circular core. Varied vague similarities of occurrence, Fixed distance and item relational positioning.
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Vague ordering, or detailed process cause and effect? Local materials may influence the Araneiform development and shaping. The tendency to be well ordered is clear. Better imaging and greater closeup detail is necessary.
Most interesting to me is the bright elevated core of the center marked 'vent'
which is unusually easy to view(shadowed), and is matched as the other dark 'vents' by a left side array of petals in ordered formation. It is found just above the center Red arrow.
The brighter core appears to be collared by a darker patterned equal measure of material, and the brighter narrow collar is of similar relatively equal measure. A tubule of several parts, possibly by several varied materials.
The core appears rough and even porous or angular, not necessarily the expected appearance for a nickel/iron meteorite fragment.
Separating the Spider formations from meteorite fragmentation erosion is of interest to me.

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PostPosted: January 12, 2010 4:17 PM 

A first display of the layered overlapping domains of the south polar region affecting the Araneiform, or Spiders, formerly referred to as Clark Trees. The layers are a combination of former ice layers, and erosion/alteration margins, as well as other influences. Notice some of the margins are limiting Spider patterns, and others are not.
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ESP_014423_1040.

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PostPosted: January 13, 2010 12:26 PM 

An animated GIF image assembly of 7 images varying the view of the 1 to 4 size area of the ESP_014423_1040 IR JP2 'RED' original.
The spot is the same as the entries 12 to 17. This allows 1 second between images, and shows some of the faults, troughs, and other layering records to be the defining limits of most of the smaller 'Spider' Araneiform growths which appear to be erosion in many other images.
Here the appearance is of growth in place based upon limits of capability established by surface conditions, or, layered growth and removal under a layer series, with exposure upon erosion. I see here the depositional ice and particulate layering with growth in place as more likely.
Addition, erosion/removal/alteration, and probably a very long history to the scene throughout many seasons, or throughout orbital and rotational variations.
The active components seem to be limited to a current layer positional defined set of enclosed margins, now viewed as the current surface. Whether these are a 3D structural entity defined similarly is not seen.
We are accustomed to viewing Mars as layered reasonably flat surfaces, and even the spheroids(blueberries) of the two rover sites shows many items extend beyond thin layered limits.
These animated GIFs work best when downloaded to your computer, as the loading and transition times are long. This is about 7.2MB total file size.
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PostPosted: January 14, 2010 4:04 PM 

The ESP_014423_1040 HiRISE south polar Mars satellite image I have taken such a strong interest in is a temporary detour from the topic image which is located nearby. This entry continues the observations of details from ESP_014423_1040.
Here is a view of the Spider formation, or Araneiform process section, located midway across the source JP2. The context shows the close packing, the faults, fractures, and dune-like trough/ridge trending system of landscape features which dominate the area.
The image is at 1 to 8 size with the magnified area at 1 to 16 and 320 pixels to a side.
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This is a view toward the top of the source image at 1 to 8, with the magnified area at 1 to 8. This shows an Araneiform issued a semi-liquid or landslide type solids movement, possibly with liquid assistance for a dendritic effect of distribution and solids or ice transfer.
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A 1 to 1 size view of the dendritic pattern, showing displaced materials.
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Can anyone question the movement of solids, probable semi-liquid or liquids involvement?




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