VHP Photo Glossary: Skylight

Scientist takes advantage of a skylight to measure height of lava flowing in a lava tube, Kilauea Volcano, Hawai`i

Skylight

A skylight is an opening in the roof of a lava tube. Skylights usually form when part of the roof collapses into the tube, but they also occur where a roof failed to form over the lava channel. If the tube is active, a stream of glowing lava can be seen moving below.

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U.S. Department of the Interior | U.S. Geological Survey
URL: http://volcanoes.usgs.gov/about/pglossary/skylight.php
Page Contact Information: vhpweb@usgs.gov
Page Last Modified: Monday, 31 March 2008 09:58:15 UTC