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Photo glossary of volcano terms

Thin pahoehoe flow advancing on road, Kilauea Volcano, Hawai`i

Photograph by J.D. Griggs
on 16 July 1990

Toes of a pahoehoe flow advance across a road in Kalapana on the east rift zone of Kilauea Volcano, Hawai`i.

Pahoehoe
Pahoehoe is a Hawaiian term for basaltic lava that has a smooth, hummocky, or ropy surface. A pahoehoe flow typically advances as a series of small lobes and toes that continually break out from a cooled crust. The surface texture of pahoehoe flows varies widely, displaying all kinds of bizarre shapes often referred to as lava sculpture (see pahoehoe terms below).

More about pahoehoe:

Examples of pahoehoe textures

 

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U.S. Department of the Interior, U.S. Geological Survey, Menlo Park, California, USA
URL http://volcanoes.usgs.gov/Products/Pglossary/pahoehoe.html
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Last modification: Monday, 04-Sep-2000 22:44:31 EDT (SRB)