Volcanoes: What They are and what They TeachC. K. Paul, 1881 - 381 Seiten |
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Seite 18
... chemical reactions which take place when sulphur and other substances are made to act upon each other differ entirely from the phenomena of volcanic action . The sulphur which is found in volcanic regions is the result and not the cause ...
... chemical reactions which take place when sulphur and other substances are made to act upon each other differ entirely from the phenomena of volcanic action . The sulphur which is found in volcanic regions is the result and not the cause ...
Seite 41
... chemical action of this kind has gone on to such an extent , that they have been led to describe the islands as composed entirely of chalk . Some of the substances issuing from volcanic vents , such as hydrogen and sulphuretted hydrogen ...
... chemical action of this kind has gone on to such an extent , that they have been led to describe the islands as composed entirely of chalk . Some of the substances issuing from volcanic vents , such as hydrogen and sulphuretted hydrogen ...
Seite 42
... chemical compounds with some of their ingredients . Thus , there are con- tinually accumulating on the sides and lips of volcanic fissures deposits of sulphates , chlorides , and borates of the alkalies and alkaline earths , with sal ...
... chemical compounds with some of their ingredients . Thus , there are con- tinually accumulating on the sides and lips of volcanic fissures deposits of sulphates , chlorides , and borates of the alkalies and alkaline earths , with sal ...
Seite 44
... chemical works was proportionately increased : but eventually the action died out almost entirely . The chief products of Vulcano which are of commercial value , are sal - ammoniac , sulphur , and boracic acid . At one time it was even ...
... chemical works was proportionately increased : but eventually the action died out almost entirely . The chief products of Vulcano which are of commercial value , are sal - ammoniac , sulphur , and boracic acid . At one time it was even ...
Seite 45
... over its sides . The chemical action of the superheated and highly - compressed steam on the rocks beneath volcanoes frequently results in the formation of beauti- fully crystallized minerals . Such crystallized minerals abound in the.
... over its sides . The chemical action of the superheated and highly - compressed steam on the rocks beneath volcanoes frequently results in the formation of beauti- fully crystallized minerals . Such crystallized minerals abound in the.
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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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