一种由硅铝质火成岩组成的方尖塔状隆起，它是由非常粘稠的熔岩从堆积穹丘外壳的裂缝中挤出而形成的。高可达数百米。
在几个世纪的时间里，拉皮塔人扩展了他们的边界，从巴布亚新几内亚的丛林覆盖的火山延伸到汤加最孤独的珊瑚离群。
Within the span of several centuries, the Lapita stretched the boundaries of their world from the jungle — clad volcanoes of Papua New Guinea to the loneliest coral outliers of Tonga.
魔鬼塔是过去的遗迹，当时地核的熔岩涌向地表，形成了火山的咽喉。
Devils Tower is a relic of the past, when the molten rock of the earth's core forced its way to the surface to form the throat of a volcano.
大多数最大的火山都与塔尔西斯凸起有关，但在北部平原上发现了许多较小的火山。
Most of the largest volcanoes are associated with the Tharsis bulge, but many smaller ones are found in the northern plains.
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