Description of selected brittle structures.

This site is in construction. Entries are forthcoming.

• Sigmoidal tension gashes, Tina Alder.
• Glacial striations, Kirk Heim.
• Mylonites, Vince Martin.
• Caldera faults, Melissa Nihsen.
• Siqueros transform, Diane Peising.
• Columnar jointing, Julia Welch.