Frank Mitchell and a group of fellow-naturalists hop aboard a magic carpet which whisks them back in time, some 1700 million years, on a mammoth geological tour of Ireland. Professor Mitchell provides an eye-witness account of the major changes occurring over the million years of their journey, which begins 6km north-west of the Inishowen coast in Donegal, on the tiny island of Inishtrahull, site of the oldest rock so far recognised in Ireland. The...
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