Evidence in the Cassia Hills of Idaho reveals 12 catastrophic eruptions
|The Cassia Hills of southern Idaho preserve evidence of twelve catastrophic |
large-scale explosive eruptions [Credit: Knott et al.]
Painstaking work by Thomas R. Knott and colleagues has revealed records of previously undiscovered large-scale eruptions, which caused Earth's crust in the area to subside by more than three kilometers, leaving a deep volcanic basin along the Snake River Plain. These older volcanic eruptions were hotter and probably more frequent than the Yellowstone eruptions.
The findings have been published in Geological Society of America Bulletin.
Source: Geological Society of America [March 11, 2016]