Possible irrigation on Mars
These grooves are all parallel to each other, or close to at right angles. Some are slightly rotated part way but this was from turning the image. All of them are roughly parallel to each other through the whole area. Natural cracks don’t form grids like this, they make polygons or point in random directions.
This area is slightly elevated, if these are irrigation canals then they seem to be cut deeper here.
Similar to the layout of an old Earth city.
There are larger walls here as well. The possible irrigation canals seem to cut right through them.
These could also be irrigation canals, where the ground is higher they seem to be deeper to compensate.
The grooves remain roughly parallel over long distances. Cracks tend to change direction as the stress in the ground varies.
The image was turned slightly to get the grooves on the edge. They seem to be only a few degrees off perfectly parallel over the whole formation.
Cracks don’t form these near right angled blocks.
The grooves cut through the wall shapes. This is hard to explain naturally, the walls should be thicker and resist cracking more.
In the same image there are similar shapes around the inside of a large crater. The hypothesis is these are stone slabs making a roof. These are seen on hundreds of similar dome shapes. Many of these collapse showing these are hollow inside. The hollow area here may be the size of a mall or larger, if hollow it would be ideal for a human colony. There may also be ancient artifacts inside.
There are also possible stone slabs on part of the outside of the crater too.
Like the possible canals, here they are elevated to near the level of the crater rim.
These are also close to at right angles, some have a radial component spreading out towards the rim.
These aren’t cracks, in the middle two slabs overlap each other.
Similar to the canal shapes earlier, some areas seem to be collapsing showing they are hollow.
Some cracks are forming on the bottom right. This is what natural cracks look like, the possible roof slabs are very different to cracks.
Many more cracks forming here, not like the edges of the slabs.
A possible entrance and more cracks in the slabs.
The roof seems to be settling here, showing it may be hollow.
Many of these slabs look like they are fitted into smaller gaps. There are more natural cracks on the bottom right. This huge formation is still continuing.
The shapes on the left may be dams to collect water, these are commonly found around the possible habitats with the dome shaped roofs.
Still more of these possible roof slabs.
The slabs go through two levels here.
There are signs of smaller tiles making up the larger slabs.
Below the slabs there are sand dunes, this shows the slabs are nothing like dunes.
Some of the grooves between the slabs are wider, this often happens as they start to collapse.
More slabs covered in sand dunes.
Still more stone slabs, the edges are still parallel with each other and nearly all have close to right angles.
These edges are more radial than perfectly parallel to connect to the crater rim, a large crack is appearing at the top.
