Volcanoes: What They are and what They TeachC. K. Paul, 1881 - 381 Seiten |
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Seite vii
... tion of the present condition of our knowledge on volcanoes , I felt that I had been greatly honoured . In order to keep the work within the prescribed limits , and to avoid unnecessary repetitions , I have confined myself to the ...
... tion of the present condition of our knowledge on volcanoes , I felt that I had been greatly honoured . In order to keep the work within the prescribed limits , and to avoid unnecessary repetitions , I have confined myself to the ...
Seite xiv
... tion . 60. Outlines of lava - cones 61. Diagram illustrating the formation of parasitic cones along lines of fissure formed on the flanks of a great volcanic mountain 158 160 162 FIG . ILLUSTRATIONS . 62. Outline of Etna , as xiv ...
... tion . 60. Outlines of lava - cones 61. Diagram illustrating the formation of parasitic cones along lines of fissure formed on the flanks of a great volcanic mountain 158 160 162 FIG . ILLUSTRATIONS . 62. Outline of Etna , as xiv ...
Seite 5
... tion with the subject have been removed by patient and critical inquiry . We propose in the following pages to give an out- line of the present state of knowledge upon the subject , and to indicate the bearings of those conclusions ...
... tion with the subject have been removed by patient and critical inquiry . We propose in the following pages to give an out- line of the present state of knowledge upon the subject , and to indicate the bearings of those conclusions ...
Seite 13
... tion of the same slope beneath the level of the sea . f . Steep cliffs of the Punta dell ' Omo . 24th of April , 1874 , I paid a visit to this interesting spot in order to get a near view of what was taking place . On reaching a point ...
... tion of the same slope beneath the level of the sea . f . Steep cliffs of the Punta dell ' Omo . 24th of April , 1874 , I paid a visit to this interesting spot in order to get a near view of what was taking place . On reaching a point ...
Seite 21
... tion of these bubbles is promoted by the circumstance that the liquid mass , where exposed to the atmosphere , becomes chilled , and thereby rendered less perfectly fluid . By the bursting of these bubbles the pressure is partially ...
... tion of these bubbles is promoted by the circumstance that the liquid mass , where exposed to the atmosphere , becomes chilled , and thereby rendered less perfectly fluid . By the bursting of these bubbles the pressure is partially ...
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Häufige Begriffe und Wortgruppen
active volcanoes andesites appear atmosphere augite Auvergne basaltic basic lavas canic carbonic acid cavities centre character Cheaper Edition chemical Cloth composed composition condition crater crater-rings crystalline crystals Demy 8vo denuding forces depth dykes earth's crust earth's surface enormous eruption Etna exhibit exist fact Fcap feet formation formed fragments Frontispiece gases geological periods geologists glassy globe granitic igneous Illustrations incandescent interior Island lapilli Large post 8vo lava-currents lava-streams line of fissure Lipari liquid mass melaphyres metallic meteorites microliths miles minerals Monte Nuovo ocean origin parasitic cones Poems portions present pressure price 35 produced pumice quantities rhyolites rock-masses scoria-cones scoriæ Second Edition seen sides silica slope Small crown 8vo solid steam Stromboli structure substances subterranean summit take place temperature Third Edition tion trachytic tuffs vapour vast Vesuvius volcanic action volcanic cones volcanic districts volcanic forces volcanic mountains volcanic outbursts volcanic phenomena volcanic vents vols
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