Pottery like objects

[eric44]

Round shaped pottery like object.

Doesn’t it look like broken pottery ?

photojournal.jpl.nasa.gov/catalog/PIA17268

Attachments:

[Marsrocks]

Neat. Several interesting fragments nearby also that look to have artificially suggestive shapes.

Take a look into the wall behind it, and you will see another round - bowl like fragment in the wall.

These forms were considered by the geology guys as possible lava formed silica bubbles - having burst.

[eric44]

The bubble explanation is interesting but if it were bubbles, we should have rocks with round holes (like chees) but here we have an object with sharp edges and a thin wall

[Marsrocks]

I agree.


Goggog of alien anomalies forum also found what appears to be a bowl like object in Spirit sol 60 that still sticks in my mind.

Unfortunately, it is very distant from the camera, and could easily be an illusion (perhaps simply made up from a collection of closeby rocks).










The left and right images are nearly identical to each other, and don't give us much more information.

marsrovers.jpl.nasa.gov/gallery/all/2/p/060/2P131688840EFF1155P2217L2M1.JPG

marsrovers.jpl.nasa.gov/gallery/all/2/p/060/2P131688960EFF1155P2217R7M1.JPG

Holger Isenberg's color version is here:

areo.info/mer/spirit/060/tn/2P131688960EFF1155P2217L5M1_L2L5L5L6L6.jpg.html

[Marsrocks]

By comparison, Eric, your bowl is right in front of us.

Here are various enlarged sizes, etc. of it:














We should see if any more images are available of it from the raw images, Curiosity sol 302.

mars.jpl.nasa.gov/msl/multimedia/raw/?s=3#/?slide=302

[Marsrocks]

Here we go - three shots of it:

mars.jpl.nasa.gov/msl-raw-images/msss/00302/mcam/0302ML1257011000E1_DXXX.jpg

mars.jpl.nasa.gov/msl-raw-images/msss/00302/mcam/0302MR1257010000E1_DXXX.jpg

mars.jpl.nasa.gov/msl-raw-images/msss/00302/mcam/0302ML1257010000E1_DXXX.jpg

[eric44]

Thanks for the search, great pictures !

[Marsrocks]

Possible pottery rimsherd (a shard remnant near the rim):

From Curiosity sol 54:

mars.jpl.nasa.gov/msl-raw-images/msss/00054/mcam/0054MR0248013000E1_DXXX.jpg










Comparison:

[polluks]

Here my associations about that rock near the pottery rimsherd :

[Marsrocks]

This one was one of the first considered to be a possible pottery fragment. It has a rim on it like dishware, and looks to be broken in half. It is from Spirit "Winter Haven" pan, sols 814-932:

photojournal.jpl.nasa.gov/catalog/?IDNumber=pia01907


It was discovered by icblue of ATS forum:

www.abovetopsecret.com/forum/thread345934/pg3














More specifically, this one is located at sol 848:


areo.info/mer/spirit/848/tn/2P201646601EFFAR00P2295L5M1_L4L5L5L5L6.jpg.html

pancam.astro.cornell.edu/pancam_instrument/images/False/Sol848A_P2295_1_False_L257_pos_2.jpg


From the Cornell sol 848 processed image:















And sol 856:

pancam.astro.cornell.edu/pancam_instrument/images/False/Sol856A_P2297_1_False_L257_pos_5.jpg

areo.info/mer/spirit/856/tn/2P202359690EFFAS00P2297L5M1_L4L5L5L5L6.jpg.html

Here is a look at the sol 856 cornell processed image of this object:











A face like object nearby also looks like a pottery fragment:

sol 848.


pancam.astro.cornell.edu/pancam_instrument/images/False/Sol848A_P2295_1_False_L257_pos_1.jpg

[Marsrocks]

This fragment, from Curiosity sol 3, also belongs in this pottery thread for comparison.

mars.jpl.nasa.gov/msl-raw-images/msss/00003/mcam/0003ML0000132000E1_DXXX.jpg

This one makes me think of a broken piece of pottery - with a dark smoother top surface, and very bright, rougher clay like edges where it would have been broken from a larger piece.

[Marsrocks]

This one from Opportunity, Sol 2175 seems like some odd material. It does not fit neatly into the pottery category, but I am putting it here for comparison, as it strikes me as similar to a ceramic or porcelain material in its appearance. It is very colorful in comparison to the rest of the panorama.

pancam.astro.cornell.edu/pancam_instrument/images/Sol2175B_P2388_L257_2F.jpg






This is the cornell brown pan:




This is the cornell stretched pan:




This is the area of the pan with a snagit histogram stretch. This is the only object in the pan that reacted with so much color:

[Marsrocks]

We do know there are clay materials in the Gale crater (Curiosity) area. The presence of clay was one of the reasons this site was selected.




One of the key reasons of the selection of Gale crater as the MSL landing site is the presence of clay minerals in several thin beds of its lower member (Milliken et al. 2010). The presence of sulfate-bearing beds below and above the clay-bearings beds however makes the origin of clay minerals at Gale ambiguous. Previous and ongoing analyses of CRISM and OMEGA show that the Martian clay minerals have very diverse compositions and geological settings. We will present new evidences of clay mineral formation cycles during early Mars, which have similarities with the present Earth clay cycles. We will thus connect the aqueous-related characteristics of Gale to the Martian global clay cycle in order to better constrain the formation processes of clays at Gale and to relate the future MSL observations to planetary scale processes relevant to past habitability.

adsabs.harvard.edu/abs/2011AGUFM.P33C1774P

Maybe there is another reason the origin of the clay material on the surface at Gale crater is not easily explained by geology.



Revealing the story that the clay tells us at Gale crater is a primary objective of this mission.

marsoweb.nas.nasa.gov/landingsites/msl/workshops/5th_workshop/talks/Tuesday_AM/Vaniman_May_2011_Landing_Site_Workshop.pdf

[Marsrocks]

Presentation by NASA with a lot of talk about the clay bearing minerals discovered on Mars:

www.youtube.com/watch?v=4TCzJkospPA

[Marsrocks]

Curiosity 309 from whatsupinthesky:

www.youtube.com/watch?v=WIGhUr3TAF4



mars.jpl.nasa.gov/msl-raw-images/msss/00309/mcam/0309MR0012750230204049E01_DXXX.jpg