Marble

This 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 centimetres.