バレン
The result is that The Burren is one of the finest examples of glacio-karst landscape in the world. The effects of the last glacial period (the Midlandian) are most in evidence, with The Burren overrun by ice during this glaciation. The impact of earlier karstification (solutional erosion) has been eliminated by the last glacial period. So any surface karstification now seen dates from approximately 10,000 years ago and The Burren karst is thus very recent in geological terms.