1.
Science
; 221(4618): 1394-7, 1983 Sep 30.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17759014
RESUMO
An explosive eruption of Mount St. Helens on 19 March 1982 had substantial impact beyond the vent because hot eruption products interacted with a thick snowpack. A blast of hot pumice, dome rocks, and gas dislodged crater-wall snow that avalanched through the crater and down the north flank. Snow in the crater swiftly melted to form a transient lake, from which a destructive flood and lahar swept down the north flank and the North Fork Toutle River.