The Geology and Extinct Volcanos of Central FranceJ. Murray, 1858 - 258 pages |
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Page 61
... Pariou . From its aspect , and that of its lava , this puy may be supposed the product of one of the last eruptions which convulsed the country . It is also one of the most con- siderable and regular cones of the chain . A segment of an ...
... Pariou . From its aspect , and that of its lava , this puy may be supposed the product of one of the last eruptions which convulsed the country . It is also one of the most con- siderable and regular cones of the chain . A segment of an ...
Page 62
... Pariou now under consideration , where since the first outburst of its vast current of lava the volcanic mouth evidently threw up pro- digious showers of scoriæ and puzzolana , creating the beautiful cone and crater of Pariou upon the ...
... Pariou now under consideration , where since the first outburst of its vast current of lava the volcanic mouth evidently threw up pro- digious showers of scoriæ and puzzolana , creating the beautiful cone and crater of Pariou upon the ...
Page 63
... Pariou is as instructive with regard to the circum- stances which accompany the movement of this substance in viscid torrents over a large tract of country , as its cone on those by which such mountainous excrescences are suddenly ...
... Pariou is as instructive with regard to the circum- stances which accompany the movement of this substance in viscid torrents over a large tract of country , as its cone on those by which such mountainous excrescences are suddenly ...
Page 65
... Pariou is even more bristling and rugged than those already described . M. d'Aubuisson justly compares it to a river suddenly frozen over by the stop- page and union of immense fragments of drift ice . * In the work to which I have ...
... Pariou is even more bristling and rugged than those already described . M. d'Aubuisson justly compares it to a river suddenly frozen over by the stop- page and union of immense fragments of drift ice . * In the work to which I have ...
Page 66
... Pariou and Côme lies that of Fraisse , a saddle - shaped hill , devoid of any peculiar interest , except that its basaltic lava , which is seen only in erratic blocks , differs from that of the Puys already described by con- taining ...
... Pariou and Côme lies that of Fraisse , a saddle - shaped hill , devoid of any peculiar interest , except that its basaltic lava , which is seen only in erratic blocks , differs from that of the Puys already described by con- taining ...
Autres éditions - Tout afficher
The Geology and Extinct Volcanos of Central France George Poulett Scrope Affichage du livre entier - 1858 |
The Geology and Extinct Volcanos of Central France George Poulett Scrope Affichage du livre entier - 1858 |
The Geology and Extinct Volcanos of Central France George Poulett Scrope Affichage du livre entier - 1858 |
Expressions et termes fréquents
Allier ancient appears Ardèche augite Auvergne basin bed of basalt breccia calcareous calcareous peperino Cantal cellular Central France chain of puys channel character Clermont clinkstone colour columnar compact conglomerate considerable contains covered crater Crown 8vo current of lava deposits distance district domite dyke east Edition elevation eruption evidently excavation Fcap feet felspar fissures flowed formed fragments freshwater formation geologists Gergovia gneiss granitic platform Graveneire Haute Loire heights hill Illustrations lacustrine lake lava lava-current Le Puy Limagne limestone marls mass matter Mezen miles Mont Dore Monts Dôme mountain neighbouring numerous observed occupied olivine Pariou peperino plain Plate plateau points Pomel Pont Portrait Post 8vo prisms probably Puy de Dôme recent remarkable ridge rise river rock sandstone scoriæ side Sioule slope strata stream of lava substance summit surface tertiary thick tion trachyte tuff valley vent Vivarais volcanic cones Vols Woodcuts
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Page 206 - ... been completed. There was first a period when the spacious lakes, of which we still may trace the boundaries, lay at the foot of mountains of moderate elevation, unbroken by the bold peaks and precipices of Mont d'Or, and unadorned by the picturesque outline of the Puy de Dome, or of the volcanic cones and craters now covering the granitic platform. During this earlier scene of repose, deltas were slowly formed ; beds of marl and sand several hundred feet thick deposited; siliceous and calcareous...