Thursday Video: metamorphic rocks in the Giant's Causeway

Photo courtesy of Rick, from Flickr

Remember the story a few weeks ago about The National Trust including the creationist hypothesis as a plausible explanation for the origin of the Giant's Causeway (Northern Ireland) at their new visitor's centre?
Let's forget the sectarian nonsense and let's focus in science, the marvel of reason that tries to explain our word through our observations and logical deductions.

Today, for Thursday Video, a film produced by the Open University about metamorphic rocks (and also igneours rocks!) in and around the Giant's Causeway.
Have fun!