Sep 292010
 
Columnar Jointing : Iceland

Coat of Arms of Iceland - source Wikipedia

Since there is a current meme in the geoblogosphere on columnar jointing I’m going to have to join in and add an image from a country that actually has a piece of columnar jointing incorporated in its coat of arms – Iceland. In case you are wondering, it is the plate that the shield rests on.

This columnar jointing is from the Jökulsárgljúfur National Park, part of the larger Vatnajökull National Park in the north of Iceland. It shows that columns do not have to be parallel, just perpendicular to the cooling surfaces, in this case lava tubes.

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