TeachMeFinance.com - explain Dome
Dome The term 'Dome' as it applies to the area of volcanos can be defined as ' A steep-sided mount that forms when very viscous lava is extruded from a volcanic vent. A steep-sided mound that forms when viscous lava piles up near a volcanic vent. Domes are formed by andesite, dacite, and rhyolite lavas. A steep-sided mass of viscous (doughy) lava extruded from a volcanic vent, often circular in plan view and spiny, rounded, or flat on top. Its surface is often rough and blocky as a result of fragmentation of the cooler, outer crust during growth of the dome'.
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