Stonehenge gravity force was responsible for building the Aleutian Islands. The way in which islands are formed is via plumes or hot spots in the lithosphere. The Hawaiian Islands are an example of this type of island formation. In this case, there is no associated subducting slab. Just a hot spot in which current scientific explanations from the science community is short on, when it comes to explaining what powers a hot spot to carve through techtonic plates, that is up until now......... 

Stonehenge is of a different design of gravity condensing devise from that of the pyramid but never the less a gravity manipulating device.