Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Volcanic force or activity.
- noun The phenomena associated with volcanic activity.
from The Century Dictionary.
- noun The phenomena connected with volcanoes and volcanic activity.
from the GNU version of the Collaborative International Dictionary of English.
- noun Volcanic power or action; volcanicity.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun volcanology Any of the natural
phenomena andprocesses associated with the action ofvolcanos ,geysers andfumaroles
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the phenomena associated with volcanic activity
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Examples
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As Italy is one of the most recently developed parts of the mainland and of the crust that has risen above the waters, it is subject to the phenomena that are due to that internal energy of the earth called volcanism, which is manifested in the various forms of volcanic activity, in earthquakes and in microseisms.
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ET, the distribution of heatflow on earth is in the first place determined by the distribution of oceanic basaltic volcanism, which is in it’s turn determined by mid-oceanic ridges, which position is driven by viscous sic flow in the upper mantle.
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Formed the idea of uniformitarianism stating current geologic processes, such as volcanism and erosion, have been at work throughout Earth's history.
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How about "volcanism" on a body just 6 km in diameter?
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** With the dating of rock by means of radioactive substances, it is not a question of how long the material has been present in the earth, but when it was formed by volcanism or by sedimentation depositing by water.
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The contribution to the present day atmospheric CO2 loading from volcanic emissions is, however, relatively insignificant, and it has been estimated that subaerial volcanism releases around 300 Mt/yr CO2.
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** With the dating of rock by means of radioactive substances, it is not a question of how long the material has been present in the earth, but when it was formed by volcanism or by sedimentation depositing by water.
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Smithsonian researchers are keen to participate, not only to expose children to science but also to serve as role models, says Elizabeth Cottrell, a geologist and director of the Smithsonian's global volcanism program.
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Researchers had speculated that volcanism contributed to this, and now there is evidence to accompany the theory.
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** With the dating of rock by means of radioactive substances, it is not a question of how long the material has been present in the earth, but when it was formed by volcanism or by sedimentation depositing by water.
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