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Thanks! I'd completely forgotten we'd looked at this before. :)

That's another good reason to show that this isn't anything special. If that same "thing" was there over 2 years ago, someone would...

The Google Earth co-ordinates (shown at the bottom right of the screen) are 66º16'24"S, 100º59'04"E. So let's go take a look. Here it is:

http://projectavalon.net/Antarctica_%22disk%22.jpg
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