Well, i have no idea what this is;
I've adjusted the perspective to get a better view, the shape becomes easier to look at:
As a logical guess, i would guess it "could be" a small piece of sellotape, simply by the fact that the edges of the rectangular object don't differ
in brightness, if you look closely the shadow of the ditch the object appears to be in isn't affecting the outline shadow. Also that the center of the
rectangle is transparent (you can see the purple tint to the right side of the area).
The triangular structure shape seems to dissapear when the perspective is changed, and looks more like a generic crater.
Also, on the left side of the sheet, there appears to be a piece of what i would assume to be sellotape also. It seems to have the same
characteristics around the edges as the "thing" in the center of the paper also. Although i can't be sure if it's simply a box drawn with a pen.
I could be entirely wrong however, just a guess.
edit on 14/3/2012 by InsideYourMind because: (no reason given)
edit on 14/3/2012 by InsideYourMind because: (no reason