Lightning effects on the grain size distribution of volcanic ash
March 5, 2019
Natural volcanic ashfall samples were examined, and high-current (~100 kA) electrical impulse experiments were conducted to reveal the changes in grain size that can occur during lightning discharge. Experiments on pseudo ash samples manufactured from volcanic deposits of both rhyolitic and basaltic composition show that aggregates of very fine grained ash particles (100 μm in size. In some cases, bubbles
Citation Information
| Publication Year | 2019 |
|---|---|
| Title | Lightning effects on the grain size distribution of volcanic ash |
| DOI | 10.1029/2018GL081298 |
| Authors | Kimberly Genareau, Kristi L. Wallace, Pedram Gharghabi, James Gafford |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Geophysical Research Letters |
| Index ID | 70260380 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Volcano Science Center |