The Geology and Extinct Volcanos of Central France |
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Page ix
... mountain platforms , and contiguous lava - streams so recent as " 1. Changes of level . " 2. The destruction of some rocks and the reproduction of others from their materials . " 3. The production of rocks de novo from the interior of ...
... mountain platforms , and contiguous lava - streams so recent as " 1. Changes of level . " 2. The destruction of some rocks and the reproduction of others from their materials . " 3. The production of rocks de novo from the interior of ...
Page xi
... mountain composed of those same multiplied beds of intermingled lavas and conglomerates , which these geologists persist in asserting not to have produced the mountain or its parasitic cones , which our eyes see them at work upon , but ...
... mountain composed of those same multiplied beds of intermingled lavas and conglomerates , which these geologists persist in asserting not to have produced the mountain or its parasitic cones , which our eyes see them at work upon , but ...
Page xii
... mountain , would indicate perhaps a proportion of one - sixth or less of the substance of the central part of the ... mountains owes in every case its formation to the heaping up of ejected matters , whether frag- mentary or in the form ...
... mountain , would indicate perhaps a proportion of one - sixth or less of the substance of the central part of the ... mountains owes in every case its formation to the heaping up of ejected matters , whether frag- mentary or in the form ...
Page xv
... § 1. The Volcanic Mountain - Its general Outline - Conglomerates . - § 2. Structure - Central Peaks — Trachytic Plateaux and Basalt . § 3. Recent Eruptions . Clinkstone Page 1 6 30 37 40 114 CHAPTER VII . REGION III . - CANTAL § 1.
... § 1. The Volcanic Mountain - Its general Outline - Conglomerates . - § 2. Structure - Central Peaks — Trachytic Plateaux and Basalt . § 3. Recent Eruptions . Clinkstone Page 1 6 30 37 40 114 CHAPTER VII . REGION III . - CANTAL § 1.
Page xvi
... Mountain . § 2. Canton d'Aubrac . Page 145 154 CHAPTER VIII . REGION IV . - DEPARTMENTS OF THE HAUTE LOIRE AND ARDÈCHE 1. Mont Mezen : vast Currents of Clinkstone and Basalt- Breccias . 2. More recent Eruptions - Subsequent Excavation ...
... Mountain . § 2. Canton d'Aubrac . Page 145 154 CHAPTER VIII . REGION IV . - DEPARTMENTS OF THE HAUTE LOIRE AND ARDÈCHE 1. Mont Mezen : vast Currents of Clinkstone and Basalt- Breccias . 2. More recent Eruptions - Subsequent Excavation ...
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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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