Space/Science — HabitableZone

Space/Science » in reply to Collapse, impact or something else?

Here's a case for impact.
et — (archived)

Look at the context image.

http://ida.wr.usgs.gov/fullres/context/m09037/m0903757_gr.jpg


The green box is misplaced because there is no crater in the center of the image but lets just assume that it's close. If you'll notice how this whole region has been soffened by what look like erosional and viscous creep features to this can explain why they're not "clean" craters.

Also, the group of these pits are clustered around a little larger crater in the green box, indicating it could've been a larger impactor that broke up.

The top center pair of pits has a flat border between the two which would indicate that, if craters, these two formed nearly simultaneously.

In this segment of the strip are straight borders as well.

http://ida.wr.usgs.gov/fullres/divided/m09037/m0903757a.jpg


If these are sinkholes, then they all formed relatively simultaneously.

Heres a THEMIS image of what I think you think is going on here.

Sinkholes along a burried graben. Conical. linear.

http://themis.la.asu.edu/fullimages/20020625a.jpg

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