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Updated: May 21, 2025
The brim of the crater of the Puy de Pariou, near Clermont, is so sharp, and has been so little blunted by time, that it scarcely affords room to stand upon. This and other cones in an equally remarkable state of integrity have stood, I conceive, uninjured, not IN SPITE of their loose porous nature, as might at first be naturally supposed, but in consequence of it.
On the top of Puy Pariou, to the north of Clermont, there exists a perfect crater, quite round, and about two hundred and fifty feet deep, whence there has flowed a stream of lava, whose course can be distinctly traced.
Why ancient and modern Rocks can not be identical. Tests by Superposition and intrusion. Test by Alteration of Rocks in Contact. Test by Organic Remains. Test of Age by Mineral Character. Test by Included Fragments. Recent and Post-pliocene volcanic Rocks. Vesuvius, Auvergne, Puy de Come, and Puy de Pariou. Newer Pliocene volcanic Rocks. Cyclopean Isles, Etna, Dikes of Palagonia, Madeira.
No rills can collect where all the rain is instantly absorbed by the sand and scoriae, as is remarkably the case on Etna; and nothing but a water-spout breaking directly upon the Puy de Pariou could carry away a portion of the hill, so long as it is not rent or ingulfed by earthquakes.
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