What is the trident on the bottom of the north Atlantic?

Question

there is a Trident shape at the bottom of the North Atlantic with what appears tobe a man made rectangle object on the right side of the trident.

Answer 1

You'll have to be more specific.  When I was trying to google it, there were a few sites that mentioned such a configuration as Atlantis.  I doubt it, but that's about the best info I can gather from the description you've given.

Answer 2

You will need to provide more references for this if you expect an answer that will even attempt to make sense.