The ash, dust, gases, and lava released by volcanic explosion. The gases are volatile matter composed principally of about 90% water vapor, and carbon dioxide, sulfur dioxide, hydrogen, carbon monoxide, and nitrogen. The ash or dust is pyroclastic ejecta and lava is molten extrusive material consisting mainly of magnesium silicate. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Volcanic hazard analysis -- Colombia -- Nevado del Ruiz Region : The eruption of Nevado del Ruiz volcano, Colombia, South America, November 13, 1985 / prepared by Dennis S. Mileti [and others] for Committee on Natural Disasters, Division of Natural Hazard Mitigation, Commission on Engineering and Technical Systems, National Research Council
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2000
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Volcanic hazard analysis -- Washington (State) -- Rainier, Mount. : Mount Rainier : active Cascade volcano : research strategies for mitigating risk from a high, snow-clad volcano in a populous region / U.S. Geodynamics Committee, Board on Earth Sciences and Resources, Commission on Geosciences, Environment, and Resources, National Research Council
Volcanic soils. : Soils of volcanic regions in Europe / Ólafur Arnalds [and others] (eds.)
2007
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Volcanic soils -- Analysis. : Clasificacion de suelos finos de Popayan : basada en la sensibilidad quimica de los fluidos de poro - suelos derivados de cenizas volcanicas
Volcanism -- Australia, Eastern : Intraplate volcanism in eastern Australia and New Zealand / compiled and edited by R.W. Johnson ; associate editors J. Knutson, S.R. Taylor
Volcanism -- Canary Islands -- Tenerife : Teide volcano : geology and eruptions of a highly differentiated oceanic stratovolcano / edited by Juan Carlos Carracedo, Valentin Troll
2013
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Volcanism -- Congresses. : Global catastrophes in earth history : an interdisciplinary conference on impacts, volcanism, and mass mortality / edited by Virgil L. Sharpton, Peter D. Ward
Volcanism -- Hawaii : Learn about the two main types of Hawaiian volcano lava, Pahoehoe and Aa (or A'A) / [John P. Rafferty, narrator] ; [Melinda Leonard, director]
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1976
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Volcanism -- Indonesia -- Krakatoa. : Krakatau, 1883--the volcanic eruption and its effects / [edited by] Tom Simkin and Richard S. Fiske ; with the collaboration of Sarah Melcher and Elizabeth Nielsen