Giant's Causeway in Northern Ireland features around 40,000 exposed polygonal columns of basalt in perfect horizontal sections. Chris Hill/Photodisc via Getty Images The reason patterns often appear ...

Visitors to the coast of Northern Ireland have always marveled at the so-called Giant’s Causeway — a field of some 40,000 interlocking basalt columns arranged in a tidy hexagonal pattern. German ...

There has been a wave of articles over the last few weeks out on the geoblogosphere on columnar jointing in lavas – with many, many great images of columns seen aroundthe world. I thought I’d jump in ...

This collection of basalt columns was recorded in a canyon north of Molokai, at a depth of just over a mile, according to Nautilus Live Ocean Exploration Trust. YouTube video screengrab Newly recorded ...

Basalt columns, as seen in the staggering rock formations of the Giant's Causeway in Northern Ireland (pictured), are produced by volcanic activity. As lava solidifies, it cools down from the top, ...

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