The Tingvellir area is part of a fissure zone running through Iceland, being situated on the tectonic plate boundaries of the Mid-Atlantic Ridge. The faults and fissures of the area make evident the rifting of the earth's crust. The tectonic plates (Eurasian and North American plate) drift out about 2 cm a year.

http://vimeo.com/5974356

I shot a section of rifts,not great because I could not get a good angle. Show you later.