Find a term from the labs, understand the process behind it, and see how it appears in the landscape. Each entry connects an explanation with a real observation and a model you can explore.
Term
Caldera
A large volcanic depression formed mainly when the ground collapses into an underlying magma reservoir after magma is withdrawn.
What to look for
USGS aerial photograph of Crater Lake, Oregon. Collapse following the eruption of Mount Mazama formed the caldera; Wizard Island is a younger volcanic cone.
