Ash particle, 1980 Mount St. Helens eruption, magnified 200 times

Ash particle, 1980 Mount St. Helens eruption, magnified 200 times...

Detailed Description

Scanning electron micrograph (SEM) of a highly vesicular glass shard of ash measuring just over 0.1 mm long, erupted during the 18 May 1980 eruption of Mount St. Helens.

Details

Image Dimensions: 500 x 375

Source:


USGS