Geology 309 - Lecture 18&19
Caldera Formation
Definition
Photos
Famous calderas:
Long Valley caldera
Recent tree die-off due to excess CO2
You can read about this phenomenon at this USGS web site
Krakatau caldera
Crater Lake
- aerial view
QuickTime movie caldera simulation
Comparison of tephra fallout
from two major caldera-forming eruptions (Long Valley's Bishop Tuff and Mt. Mazama's Rockland Ash) to that of Mt. St. Helens
Basaltic caldera
photo from Hawaii
Return to
Volcanology home page