Water, ash, and the great unknown of explosive volcanic eruptions

image related to volcanoes. See description

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. Photos by J. Schmith.

Details

Image Dimensions: 2503 x 925

Date Taken: