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140529Burren6508ftmpw | by GeoJuice
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The Burren's limestone was laid down in Carboniferous times, about 340MYBP. The limestone was formed from the remains of marine organisms which fell to the bottom of this warm, shallow sea.The limestone was laid down in stages and are separated by bedding planes. The bedding planes in the Burren are 15 to 30 cm thick and composed of mudstone. This mudstone can be worn away, particularly at coastal sites, causing the bed of limestone above to collapse.

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Taken on May 29, 2014