Volcanoes: What They are and what They TeachC. K. Paul, 1881 - 381 Seiten |
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Seite 4
... changes in form of volcanic mountains , and of the causes which determine their growth . At a somewhat later date the three German naturalists , Von Buch , Hum- boldt , and Abich , greatly extended our knowledge of volcanoes by their ...
... changes in form of volcanic mountains , and of the causes which determine their growth . At a somewhat later date the three German naturalists , Von Buch , Hum- boldt , and Abich , greatly extended our knowledge of volcanoes by their ...
Seite 35
... be of the greatest benefit to science if an observatory were erected beside the crater of Stromboli , where a care- ful record might be kept of all atmospheric changes , and of the synchronous manifestations of the volcanic forces . D 2.
... be of the greatest benefit to science if an observatory were erected beside the crater of Stromboli , where a care- ful record might be kept of all atmospheric changes , and of the synchronous manifestations of the volcanic forces . D 2.
Seite 36
... Changes in the barometer to the extent of two inches within a very short period are not uncommon occurrences . A ... change takes place . Now , if we suppose , as we have good ground for doing , that under volcanic areas vast quantities ...
... Changes in the barometer to the extent of two inches within a very short period are not uncommon occurrences . A ... change takes place . Now , if we suppose , as we have good ground for doing , that under volcanic areas vast quantities ...
Seite 44
... change in the condition of the volcano has unfortunately prevented the carrying out of this bold project . Besides the volatile substances which issue from volcanic vents , mingling with the atmosphere or con- densing upon their sides ...
... change in the condition of the volcano has unfortunately prevented the carrying out of this bold project . Besides the volatile substances which issue from volcanic vents , mingling with the atmosphere or con- densing upon their sides ...
Seite 45
... changes in the rocks of which fragments are ejected from volcanic vents . The so - called ' lava ' ornaments , which are so extensively sold at Naples , are not made from the materials to which geologists apply that name , but from the ...
... changes in the rocks of which fragments are ejected from volcanic vents . The so - called ' lava ' ornaments , which are so extensively sold at Naples , are not made from the materials to which geologists apply that name , but from 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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