The Geology and Extinct Volcanos of Central France |
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Page xiv
... nearly in the same state in which it appeared in the first edition . And I may add that it was entirely compiled from my own observations on the spot , on the basis of a sheet of Cassini's old Survey , as I had no access at the time to ...
... nearly in the same state in which it appeared in the first edition . And I may add that it was entirely compiled from my own observations on the spot , on the basis of a sheet of Cassini's old Survey , as I had no access at the time to ...
Page 1
... nearly equal portions , of which the northern may be considered as a vast plain , whose waters flow gently towards the north and west through the Seine and the lower Loire . South of this line the surface continues to rise with a ...
... nearly equal portions , of which the northern may be considered as a vast plain , whose waters flow gently towards the north and west through the Seine and the lower Loire . South of this line the surface continues to rise with a ...
Page 3
... is found in detached patches nearly all round the granitic platform , and , as already observed , on many points within its limits , especially on one straight line crossing it from north - B 2 CHAP . I. 3 GRANITIC PLATEAU .
... is found in detached patches nearly all round the granitic platform , and , as already observed , on many points within its limits , especially on one straight line crossing it from north - B 2 CHAP . I. 3 GRANITIC PLATEAU .
Page 4
... nearly horizontal , though dipping to the south or south - west , this formation exhibits a series of flat - topped hills bounded by perpendicular cliffs 600 or 800 feet high . These plateaux are called " causses " in the provincial ...
... nearly horizontal , though dipping to the south or south - west , this formation exhibits a series of flat - topped hills bounded by perpendicular cliffs 600 or 800 feet high . These plateaux are called " causses " in the provincial ...
Page 7
... nearly horizontal strata of sand , sandstone , calcareous marl , clay , or limestone , none of which observe a fixed and invariable order of superposition . Several hills also composed of the same strata rise from the plain , generally ...
... nearly horizontal strata of sand , sandstone , calcareous marl , clay , or limestone , none of which observe a fixed and invariable order of superposition . Several hills also composed of the same strata rise from the plain , generally ...
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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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