Note 304 — Chapter XLI · THE ERUPTIVE VENTS OF THE BASALT-PLATEAUX
Reading edition
The existence of a small dyke of andesite on the northern rim of the well-known crater of the Puy Parion has already been noticed.
Reading edition
The existence of a small dyke of andesite on the northern rim of the well-known crater of the Puy Parion has already been noticed.