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
Normal fault
A fault on which the hanging wall moves down relative to the footwall. It commonly forms where the crust is being extended. Determine movement from displaced layers rather than the present height of the land surface alone.
What to look for
Almannagjá, Þingvellir: faults accommodate extension within Iceland's broad North American–Eurasian plate boundary zone.
