Jim Letourneau's Blog

Investing, Technology, Travel, Geology, Music, Golf. I think that covers it.

Breaking Plates at Thingvellir National Park

The theory of plate tectonics didn't take hold of the geological community until the 1960's. I don't know what they made up about the earth before then but I think its a pretty good theory. I don't think you can be a guide in Iceland without having a thorough understanding of plate tectonic theory, especially if you are going to Thingvellir National Park

The initial view from the parking lot is unassuming, although the lake is pretty and geothermal power plants can be seen in the distance. Once I walked closer to the edge of the valley, it was pretty easy to see numerous faults and  blocks of lava dropping down into the valley. Looked like a graben or rift valley to me. The valley floor was quite flat but in crossing it we were moving from the North American plate to the Eurasian plate. More on the geology here