posted on May, 11 2010 @ 03:59 PM
If I tilt my laptop monitor back enough they stick out like mad, but this also enables me to see the colour differnces too. The images are made of two
images stitched together to make the seamless experience of Google earth. One images is slightly greyer, one is slightly bluer. I think the shapes are
left by whatever algirithm does the image-stitching.
They are definitely some sort of software artifact though. Look at the dark patches, which are probably rocks covered in weed, and see how undefined
their edges are caused by the refraction of the light passing through the water. The shapes over the sandy areas have straight edges. This means that
they cannot have an water over them. It is a physical impossibility for the outlines of the rocks to be affected by the depth of water, but the
outlines of these "structures" not to be.
Here's what the sea floor looks like in that part of the Carribean: