is an example of contact metamorphism close to White Park Bay, Co Antrim,
Northern Ireland. The basalt on the left of the photograph was injected
as a dyke through the chalk rock which can be seen on the right. The
heat has changed the chalk in contact with the basalt into a different
rock. This produces a metamorphic rock, in this case marble.
There is no scale
on the photograph but the total width of the scene shown is about 60