
Originally Posted by
Ophiolite
I believe these are artifacts of the imaging system. The total absence of even a trace at higher magnifications supports this view, as does their total disregard for for any features, natural or man made, in the area.
The higher magnifications are not monochrome, they are I believe, different images from the smaller scale ones.
I suspect the smaller scale images are composites taken from multiple sattelite passes, at different seasons, or times of day, hence differing ground colour, or lighting conditions.
I am no expert on how google constructs these systems, but until someone comes along who is, that is my best guess.