Volcanoes General - 15 of 25

Volcanoes General FAQs - 25 Found

Can volcanic rocks float?

The violent separation of gas from lava may produce rock froth called pumice. Some of this froth is so light -- because of the many gas bubbles -- that it floats on water.

 

Learn More:

Volcanoes, 1998, USGS General Interest Publicaton, 45 p.

 

 

Tags: Geothermal Resources, Earthquakes, Tectonics, Monitoring, Volcanoes, Lava, Seismicity, Ring of Fire