Checked content

File:Dacite-ThinSection-USGS.jpg

Dacite-ThinSection-USGS.jpg(600 × 480 pixels, file size: 102 KB, MIME type: image/jpeg)

Summary

Thin section image in crossed polars of a Dacite sample from a dome in Mount St. Helens. Image by United States Geological Survey, a federal scientific agency.

Licensing:

The following pages on Schools Wikipedia link to this image (list may be incomplete):

Schools Wikipedia facts

Schools Wikipedia was created by children's charity SOS Children's Villages. SOS Children's Villages is a global charity founded in 1949 to give children who have lost everything the childhood they deserve. There are many ways to help with SOS Children's Villages.