Volcanoes: What They are and what They TeachC. K. Paul, 1881 - 381 Seiten |
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Seite 12
... vast bulk . Soundings in the sea surrounding the island show that the bottom gradually shelves around the shores to the depth of nearly 600 fathoms , so that Stromboli is a great conical mass of cinders and slaggy materials , having a ...
... vast bulk . Soundings in the sea surrounding the island show that the bottom gradually shelves around the shores to the depth of nearly 600 fathoms , so that Stromboli is a great conical mass of cinders and slaggy materials , having a ...
Seite 19
... vast bubbles are formed upon its surface , and to the sudden burst- ing of these the phenomena of the eruption are due . Now if we take a tall narrow vessel and fill it with porridge or some similar substance of imperfect fluidity , we c 2.
... vast bubbles are formed upon its surface , and to the sudden burst- ing of these the phenomena of the eruption are due . Now if we take a tall narrow vessel and fill it with porridge or some similar substance of imperfect fluidity , we c 2.
Seite 26
... vast cloud overhanging the mountain . An inspection of the photographs ( see fig . 5 ) shows that the great vapour - cloud over Vesuvius was made up of the globular masses ejected at succes- sive explosions . Each of these explosive ...
... vast cloud overhanging the mountain . An inspection of the photographs ( see fig . 5 ) shows that the great vapour - cloud over Vesuvius was made up of the globular masses ejected at succes- sive explosions . Each of these explosive ...
Seite 36
... vast quantities of superheated water are only prevented from flashing into steam by the superincumbent pres- sure , a relief of this pressure to the extent of two millions of tons on every square mile could scarcely fail to produce very ...
... vast quantities of superheated water are only prevented from flashing into steam by the superincumbent pres- sure , a relief of this pressure to the extent of two millions of tons on every square mile could scarcely fail to produce very ...
Seite 44
... vast dimen- sions , like Etna , Teneriffe , and Chimborazo . Some of these solid materials are evidently fragments of the rock - masses , through which the volcanic fissure has been rent ; these fragments have been carried upwards by ...
... vast dimen- sions , like Etna , Teneriffe , and Chimborazo . Some of these solid materials are evidently fragments of the rock - masses , through which the volcanic fissure has been rent ; these fragments have been carried upwards by ...
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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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