Find a
Select grade level(s) Select resource type(s) Select collection(s) Select standard(s) Skip navigation Digital Library for Earth System Education
Digital Library for Earth System Education
Search tips
Glossary of Volcano and Related Terminology
This glossary of terms is specific to the discussion of volcanoes. It contains terms such as aa (a type of lava), and silicic (a term used to describe silica-rich volcanic rock or magma). Many of the terms not only have definitions, but serve as active links to sites with additional information about the term.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
  • College (15-16)
Type of resource:
  • Text:
    • Glossary
  • Geographical Sciences:
    • Physical geography
  • Geological Sciences:
    • Geology
    • Mineralogy or petrology
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
The maps, graphics, images, and text found on our website, unless stated otherwise, are within the Public Domain. You may download and use them. Credit back to the USGS/Cascades Volcano Observatory is appreciated. If any material is referenced , Image courtesy of ... or Information courtesy of ..., etc., then please contact that source for permission for use.
DLESE Catalog ID: DLESE-000-000-006-084
Related resources:
This resource is part of 'Cascades Volcano Observatory'
Resource contact / Creator / Publisher:
Publisher: United States Geological Survey Cascades Volcano Observatory