Difference between revisions of "Reticulite"
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| − | During the exceptionally high fountaining episodes of some [[eruption]]s, an extremely [[vesicular]], feathery light [[pumice]], called reticulite or thread-lace [[scoria]], can form and be carried many miles downwind from the high [[lava]] fountains. Even though reticulite is the least dense kind of [[tephra]], it does not float on water, because its vesicles are open and interconnected. Consequently, when it falls on water, it becomes easily waterlogged and sinks. (Tilling, Heliker, and Wright, 1987) <ref>[http://vulcan.wr.usgs.gov/Glossary/volcano_terminology.html Glossary of Volcano and Related Terminology]</ref> | + | [[Image:Reticulite.jpg|thumb|300px|Reticulite erupted from Kilauea Volcano, Hawai`i.]]During the exceptionally high fountaining episodes of some [[eruption]]s, an extremely [[vesicular]], feathery light [[pumice]], called reticulite or thread-lace [[scoria]], can form and be carried many miles downwind from the high [[lava]] fountains. Even though reticulite is the least dense kind of [[tephra]], it does not float on water, because its vesicles are open and interconnected. Consequently, when it falls on water, it becomes easily waterlogged and sinks. (Tilling, Heliker, and Wright, 1987) <ref>[http://vulcan.wr.usgs.gov/Glossary/volcano_terminology.html Glossary of Volcano and Related Terminology]</ref> |
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 02:11, July 13, 2007
During the exceptionally high fountaining episodes of some eruptions, an extremely vesicular, feathery light pumice, called reticulite or thread-lace scoria, can form and be carried many miles downwind from the high lava fountains. Even though reticulite is the least dense kind of tephra, it does not float on water, because its vesicles are open and interconnected. Consequently, when it falls on water, it becomes easily waterlogged and sinks. (Tilling, Heliker, and Wright, 1987) [1]