Scanning electron microprobe images of Icelandic ash
By Hawaiian Volcano Observatory
2014 (approx.)
![Black and white SEM image of ash](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/image2-1457.jpg?itok=qA9JoCFF)
Detailed Description
Scanning electron microprobe images show the complexity of tiny Icelandic ash grains (150 micron, or 0.006 inch). Image (a) shows a dense and blocky grain, and (b) shows a foamy grain.
Sources/Usage
Public Domain.