I made it back to the ruins today after unsuccessfully searching for further structures on the exact opposite side of the planet. The ruins are now in their 3.45 day (earthday) night time...I was hoping to take more aerial pics but the darkness didn't allow it.
I met Cmdrs Waldovenison Smear and Mengy there and me and Waldo hooned around in our SRVs for a time, while Mengy hovered above us and had his breakfast
A couple of points I have been thinking about:
1) The large circular "landing pad".
Cmdr Waldo mentioned it to me and I agree that the metal structures at 120 degrees to each other on the "landing pad" certainly look like docking clamps:
http://i.imgur.com/q8cpdjq.jpg
Some aspect of a large ship slots down into each of the three clamps from the top, pushing open the two rounded structures in the middle, which move out of the way until the ship part makes it to the gap, whereby they spring back together locking the ship in place.
There are many scrape marks in a general "up-down" direction as evidences in a close-up of the above pic:
http://i.imgur.com/gGoJXy5.jpg
2) The pyramid to the south east of the large "landing pad":
I believe this pyramid is somehow involved in the control of the large landing pad. As seen in the pic below there are many "circuit" lines leading from the top of the pyramid to the landing pad and its surrounding circular walls.
http://i.imgur.com/FFUJTxu.jpg
Interestingly, a lot of these lines, if extrapolated from their end points (the end of the red lines) run tangentially to the circular parts of the landing pad, either the outer ring, middle ring or landing pad itself (yellow lines). There are some of the lines that do not run tangentially (green lines) but nevertheless seem to run into the pad itself or head towards the southern most "docking clamp". The blue lines don't seem to go anywhere but I felt I had to mark them in.
http://i.imgur.com/QHh8Si7.jpg
Could the large landing pad have been used as a landing site for a large, possibly circular ship, and all the other triangular, rectangular and similar structures made up of the obelisks (some with "docking clamps") have been landing pads for smaller different shaped vessels? The active obelisks may have had something to do with that purpose. There is an obelisk on the smaller circular "landing pad" which seems to have had a chunk cleaved from it from above...a landing mishap?
Very intriguing none the less...
Frawd