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New page: [[Image:Cinder_cone.jpg|thumb|300px|This cinder cone (Pu`u ka Pele) was erupted low on the southeast flank of Mauna Kea Volcano. The cone is 95 m in height, and the diameter of the crater ...
[[Image:Cinder_cone.jpg|thumb|300px|This cinder cone (Pu`u ka Pele) was erupted low on the southeast flank of Mauna Kea Volcano. The cone is 95 m in height, and the diameter of the crater at the top is 400 m. Hualalai Volcano in background.]]A '''cinder cone''' is a steep, conical hill of volcanic fragments that accumulate around and downwind from a [[vent]]. The rock fragments, often called [[cinders]] or scoria, are glassy and contain numerous gas bubbles "frozen" into place as magma exploded into the air and then cooled quickly. Cinder cones range in size from tens to hundreds of meters tall.
[[Category:Geology]]
[[Category:Geology]]