Upright syncline in limestone (vertical)April 30, 2017/in /by Marli Miller fold, ductile deformation https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-04-30 20:27:092017-09-03 00:59:02Upright syncline in limestone (vertical)