Strange Structures in Antarctica Form a Perfect Triangle

Once again using Google Earth Conspiracy Depot has located a network of 4 buildings and towers which look constructed.

Is it part of a debris field? Or part of a larger structure buried beneath the ice?

Even more remarkable all the structures are lined up to form a perfect triangle.

Google Earth coordinates:
Horseshoe building 1: 67° 0'7.46"S 67° 7'34.21"W
Horseshoe building 2: 67° 0'16.12"S 67° 8'7.26"W
Tower 1: 67° 0'14.34"S 67° 7'36.76"W
Tower 2: 67° 0'20.63"S 67° 7'18.57"W