The Geology and Extinct Volcanos of Central France |
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Page xi
... Elevation Craters , ” first suggested by M. de Buch , and afterwards warmly espoused by MM . Elie de Beaumont and Dufresnoy . Next to the exploded theory of Werner , I know of no fallacy that has so much impeded the march of true ...
... Elevation Craters , ” first suggested by M. de Buch , and afterwards warmly espoused by MM . Elie de Beaumont and Dufresnoy . Next to the exploded theory of Werner , I know of no fallacy that has so much impeded the march of true ...
Page xii
... elevation , in the sense implied by the elevation - crater theorists , may be admitted to have assisted in the production of the central summits . But at a distance from these few dykes are found , and there is no reason to doubt that ...
... elevation , in the sense implied by the elevation - crater theorists , may be admitted to have assisted in the production of the central summits . But at a distance from these few dykes are found , and there is no reason to doubt that ...
Page 1
... elevation of more than 3000 feet above the sea in the Auvergne and Forèz , and a still greater in the Gevaudan and Vivarais , where it reaches the height of 5500 feet . Here it is abruptly cut down by the deep valley of the Rhone ...
... elevation of more than 3000 feet above the sea in the Auvergne and Forèz , and a still greater in the Gevaudan and Vivarais , where it reaches the height of 5500 feet . Here it is abruptly cut down by the deep valley of the Rhone ...
Page 2
... elevation in the chain of the Cevennes . Abstraction is in this description made of the volcanic products which rise , like enormous protuberances , from the higher parts of the elevated granitic platform . It is also deeply indented by ...
... elevation in the chain of the Cevennes . Abstraction is in this description made of the volcanic products which rise , like enormous protuberances , from the higher parts of the elevated granitic platform . It is also deeply indented by ...
Page 37
... elevation much superior to that of the highest parts of the granitic platform . By many of their earliest observers , especially by M. de Montlosier , and subse- quently by Dr. Daubeny , they were described as of two classes , ancient ...
... elevation much superior to that of the highest parts of the granitic platform . By many of their earliest observers , especially by M. de Montlosier , and subse- quently by Dr. Daubeny , they were described as of two classes , ancient ...
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Common terms and phrases
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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