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New page: A '''Hornito''' is a small rootless spatter cone that forms on the surface of a basaltic lava flow (usually pahoehoe). A hornito develops when lava is forced up through an opening ...
A '''Hornito''' is a small rootless [[spatter cone]] that forms on the surface of a basaltic lava flow (usually [[pahoehoe]]). A hornito develops when lava is forced up through an opening in the cooled surface of a flow and then accumulates around the opening. Typically, hornitos are steep sided and form conspicuous pinnacles or stacks. They are "rootless" because they are fed by [[lava]] from the underlying flow instead of from a deeper magma conduit.
[[Category:Geology]]
[[Category:Geology]]