Mars geologists led themselves astray...
It's very convenient to make assumptions, particularly when they give one the illusion of safety...
The mechanics of ejection have been intensively studied, particularly in regard to the ejection of the Martian meteorites (ALH 84001), and the results have then been IGNORED.
1) There is a size constraint on material ejected from impacts
2) The velocities of the material ejected is an order of magnitude or so lower than that of impactors
Thus there is a size constraint on secondary craters, which is also IGNORED.
How convenient...
As for current processes on Mars, Nick Hoffman pointed out an active process, which those who control the imaging then conveniently IGNORED...
Again, how convenient...
2:09 -
ep