volcano

I

(Roget's IV) n. Famous volcanoes include: Vesuvius, Etna, Pelee, Ararat, Kilauea, Mauna Loa, Mauna Kea, Wrangel, Krakatoa, Paricutin, Popocatepetl, Jokullo, Izalco, Quezaltenango, Conseguina, Mount Hood, Lassen Peak, Mount Shasta, Mount Baker, Mount St. Helens, Shishaldin, Erebus, Smerin, Gowong, Lamongong, Kirunga, Stromboli, Vulcano, Fujiyama, Orizaba, Pinatubo; see also mountain 1 .

II

(Roget's 3 Superthesaurus) n.

vent, mountain, crater, Pekee, Vesuvius, Etna, Mt. St. Helens.

WORD FIND

• avalanche of hot gas and ash: pyroclastic flow, nuee ardente

• blob of lava ejected from: bomb

• cavern formed by lava flow: lava tube

• cinderlike lava: scoria

• crater that eventually fills with water to become lake: caldera

• descriptive: devil’s throne, hellish forge, festering boil

• device that measures bulge in side of mountain: tiltmeter

• device that measures vibration: seismograph

• ejaculate: clastic, tephra

• eruption: cataclysm, upheaval, paroxysm, belching

• ‘‘fireworks’’ associated with: pyrotechnics

• glass, volcanic: obsidian

• god of fire, Roman: Vulcanus

• inactive permanently: extinct

• lava that hardens and stops up volcano throat: plug

• molasses-like lava found in Hawaii: pahoehoe

• molten rock after it is expelled: lava

• molten rock before it is expelled: magma

• mouth: crater

• mud or ash flow, heated: lahar

• rock, porous: pumice

• rock produced by, dark igneous: basalt

• reaction of lava when it meets water: base surge

• science of: volcanology

• scientist: volcanologist, vulcanist

• sleeping, inactive: dormant

• superheated gas and fire cloud: nuee ardente

• vent, secondary: monticule, fumarole, blowhole, cinder cone

• truncated cone left after eruption: basal wreck

see mountain