The entire northern Antrim coast is the remnant of an lava flow hundreds of feet deep, the depth corresponds to cliff height today. It made a great location for a defensive fort, or dun, featured in an earlier post. I say today because on a time scale of 50 million years the late Bronze age, 3000 years ago, was yesterday.
Here is another view from the Giant’s Causeway walk, wonders presented at every step. This lava dike, now surrounded by water, formed when flowing lava entered a crack though a layer of basalt from an earlier eruption. The lava cooled, over eons the surrounding material eroded, leaving a wall of rock. This formation has an irregular surface that resembles a two humped camel from some angles.
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