“volcano”的概念、定义、翻译、参考文献-科学参考

volcano

Geology and Earth Sciences

A naturally occurring vent or fissure at the Earth’s surface through which erupt molten, solid, and gaseous materials. The viscosity, gas content, and rate of extrusion of the magma probably determine the shape of the mountain built by the eruptions. The magma may reach the surface either through a single channel (see central vent volcano), or through a series of vertical fractures (see fissure volcano). Types of eruptions are named after volcanoes associated with them. See hawaiian eruption; peléean eruption; plinian eruption; strombolian eruption; surtseyan eruption; vesuvian eruption; vulcanian eruption.

Geography

An opening in the crust out of which magma, ash, and gases erupt. The shape of the volcano depends very much on the type of lava. Cone volcanoes are associated with thick lava and much ash. Shield volcanoes are formed when less thick lava wells up and spreads over a large area, creating a wide, gently sloping landform. Most volcanoes are located at destructive or constructive plate margins.

单词	volcano
释义	volcano Geology and Earth Sciences A naturally occurring vent or fissure at the Earth’s surface through which erupt molten, solid, and gaseous materials. The viscosity, gas content, and rate of extrusion of the magma probably determine the shape of the mountain built by the eruptions. The magma may reach the surface either through a single channel (see central vent volcano), or through a series of vertical fractures (see fissure volcano). Types of eruptions are named after volcanoes associated with them. See hawaiian eruption; peléean eruption; plinian eruption; strombolian eruption; surtseyan eruption; vesuvian eruption; vulcanian eruption. Geography An opening in the crust out of which magma, ash, and gases erupt. The shape of the volcano depends very much on the type of lava. Cone volcanoes are associated with thick lava and much ash. Shield volcanoes are formed when less thick lava wells up and spreads over a large area, creating a wide, gently sloping landform. Most volcanoes are located at destructive or constructive plate margins.
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