Difference between revisions of "Hornito"
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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 ...) |
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Revision as of 13:31, June 16, 2007
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.