Ig. Home | Simp.Class. | Advanc.Class. | Alpha.List | Bowen's Reac.Srs. | ID Keys | Extrus/Intrus | Tect. | Self Tests
PUMICE

   Detail
     

Another specimen

  Return to Classification; pdf version
Typical Minerals
Volcanic Glass. Pumice has cooled too quickly for minerals to form. Chemical composition, however, will be from the bottom of Bowen's Reaction series (i.e. felsic).
Description
     Pumice is a vesicular, foamy, very light weight, light colored rock formed by abundant, rapid gas escape during formation. It is often a pyroclastic product.
   Return to Classification; pdf version
   Return to Previous Rock
Tectonic Association
     Pumice is found on continents, ejected from felsic volcanoes as pyroclastic material.
   Tectonic Cross Section - pdf version

LSF Home | Geology Web Sites | Courses | JMU Geology
Last Update: 9/29/00

e-mail: (Fichtels@jmu.edu)