cog, What do you mean by 'shadow effect'? The shadow certainly does make it look like it is suspended off the ground (though attached at the 'handle'). Is there a well known (to others) phenomenon that creates the illusion of such shadows that I'm not aware of?
dolan wrote: "looks like some overzealous image enhancement has been applied there"
Could be, or it could be that there was a core of something that crystalized particularly hard in thin column like that, and the weaker material around it weathered away. Look at all the other weird protrusions making shadows in that shot. It seems to be common in that area, and this one just happens to be rather spoon shaped.
Is that baby Elvis being served by the spoon, though??