Geology students as well as amateur geologists will enjoy this account of volcanoes, one made topical by continued references to historic eruptions and sites, and well illustrated in b&w (there are also some color plates). The text, which was translated from the French original published in 1998, ex
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activity alkaline andesitic avalanches blocks calc-alkaline caldera carbon Chapter composition cones continental cooling crater crust crystals dacite debris density deposits depths diameter domes earth ejecta energy erup eruption column eruption of Mt evacuation example explosive eruptions fissure flanks flood basalts fluid fragments fumaroles gases geothermal Hawaii Hawaiian heat height Helens hotspot Iceland ignimbrites intrusions island Kilauea kilometers lahars large amounts lava flows lava lake less liquid lithosphere magma rises mantle measured melting meteoric water meters minerals Nevado del Ruiz oceanic olivine Pelee peridotite Photograph Pinatubo plagioclase planets plate Plinian plutonic pressure produced proportions pumice pyroclastic flows pyroxene rate of discharge reached region reservoir result rhyolite ridges rifts scoria shallow siliceous slopes solid steam subduction summit surface tectonic temperature tephra thermal thickness tholeiitic tions types vapor velocity vent viscosity volatile components Volc Geoth Res volcanic rocks volcano volcanologists volume Yellowstone zone