hornito

A hornito is a small rootless spatter cone that forms on the surface of a basaltic lava flow (usually pahoehoe).
翻译成中文为：熔岩丘是形成于玄武岩熔岩流（通常为绳状熔岩）表面的小型无根溅出锥。
A hornito develops when lava is forced up through an opening in the cooled surface of a flow and then accumulates around the opening.
当熔岩通过已经冷凝的表面之开口被迫向上挤出时，就在开口周围堆积形成熔岩丘。典型的熔岩丘呈陡峭的塔形或烟囱状。